10 May 1996 0 1996 An International Journal of Dipterological Research
Afrotropical species of the genus Tenuopus Curran
(Diptera: Dolichopodidae)
IGOR YA. GRICHANOV
Grichanov, I.Ya.1996.Afrotropical species of the genus Tenuopus Curran
(Diptera: Dolichopodidae). Int. J. Dipterol. Res., 7(2): 125 - 131.
Four species of the genus Tenuopus are described from Liberia, Uganda and Zaire.
New records, catalogue and a key to Afrotropical species of Tenopus are given.
I.Ya. Grichanov, All-Russian lnstitute of Plant Protection, Podbelskogo 3,
St.Petersburg-Pushkin, 189620, Russia.
Key Words. Diptera, Dolichopodidae, Tenuopus, Africa.
Introduction
The genus Tenuopus was established by Curran
(1924) for new species T. univittatus Curran nec
Loew (misidentification) from South Africa. In sub-
sequent publications he described T. acrosticalis and
T. frontalis (female) and transferred Saucropus
cyanescens Loew to the genus Tenuopus, relating it
with the subfamily Chrysosomatinae (Curran 1927a,
1927b). Later Parent (1931. 1934, 1939) described
three new species and excluded Saucropus univittatus
Loew and S. cyanescens Loew from the genus. Dyte
k. Smith (1980) transferred Psilopus unicolor Becker
to the genus Tenuopus, listing it within the sub-
family Neurigoninae. All species are known from
South and Tropical Africa, though an undescribed
species was mentioned by Dyte (1975) from Orien-
tal Region.
In this paper four new species of Tenuopus are
described and new records for kuown species are
given on the basis of the collections from the Natu-
ral History Museum, Londoa (NHML) and the
Hungarian Natural History Museum (HNHM).
All the species examined and described have the
following features. Long, mostly yellow body; one
pair of ocellar, occipital and postvertical bristles;
probosois with a pair of black lateral setae and yellow
hairs; scape bare, pedicel with digitated appendix
upon first tlagellomere, more developed in males;
arista dorsal, short pubescent. Mesonotum convex,
no mesoscutal flattening; six or seven dorsocentral
bristles with tirst bristle somewhat smaller; scutel-
lum with two strong bristles. Legs mostly yellow,
coxae with yellow hairs and black bristles, hind coxa
with one external bristle. Wing vein R2+3, reachs costa
in apical fifth of wing, being nearly parallel with
R4+5;M1 with gentle arc to apex, reaching costa before
wing apex, near R4+5; M2 usually present as fold on
membrane; m-cu straight, bm-cu reduced. Abdomen
of six segments with strong marginal bristles, with-
out tergal window in segment 1, and with less scle-
rotized "pseudotergit" between segments 1 and 2 (see
Parent, 193B; Bickel, 1994); seventh segment and
hypopygium small, epandrium usually concealed;
cercus short and simple, surstylus usually long, oBen
bifurcated; at least one very long and a few short
epandrial lobes.
llolotypes and paratypes of the new specics are
conserved in the Natural History Museum (London).
List of known Tenuopus species from
Afrotropical Region
Tenuopus Curran
Tenuopus Curran, 1924: 228. Typc-species Saucro-
pus univittatus Loew, 1868 sensu Curran (misident.)
= Tenuopus erroneus Parent, 1934, by original des-
ignation.
acrrosticalis Curran, 1927: ]3 - Uganda, Nigeria,
Zaire, Kenya (!), Ghana (!)
cognatus Parent, 1934: 122 - South Africa
erroneus Parent, 1934: 123 - South Africa
=univittatus Curran nec Loew
frontalis Curran, 1927: 265 - Congo, Ghana,
Nigeria, Sierra Leone
fursovi sp. n. - Liberia
guttatus Parent, 1939: 269 - Ghana, Zaire
kononenkoi sp. n. - Uganda
maculatus Parent, 1931: 46 - Malawi, Tanzania
(!)
shcherbakovi sp. n. - Uganda
unicolor Becker, 1914: 126 (Psilopus) - Kenya,
Zaire (?)
zverevi sp. n. - Zaire
Key to known species of Tenuopus
1. Wings with maculations........................ 2
Wings monochrome, usually hyaline.............. ..3
2. Wings with one apical spot along costa.....
...............................maculatus Parent
- Wings with three rounded spots in apical half,
in females somewhat diffused.....,.............
............................... guttatus Parent
3. Males........................................ .4
- Females....................................... .9
4. Ac.rostichals weak, in a single row on the ante-
rior fourth of mesonotum........................ .5
- Acrostichals strong, arranged ia two rows ex-
tending to posterior third of mesonotum ........ .6
5. Hind tarsi entirely black, fore tarsi simple....
................................... cognatus Parent
- Hind tarsi yellow at base, 4 - 5th tarsomeres of
fore tarsi with short lateral black plumage ......
.................................... erroneus Parent
6. Middle femora with 6 - 8 long black veatral bris-
tles in the middle half, louger than diameter
of femora, and with some white hairs; fore
basitarsomere 1.5 times as long as fore tibia,
with four dorsal setae.............. zverevi sp. n.
- Middle femora with numerous hairs only, fore
basitarsomere no much longer than fore tibia,
with one or two dorsal setae.................... .7
7. Middle femora with black ciliation, hind femora
bare, fore basitarsomere with one dorsal seta
...................................kononenkoi sp. n.
- Middle and hind femora with white hairs be-
neath, fore basitarsomere with 2 dorsal setae .
................................................. 8
8. Median green-brownish vitta of mesonotum half
as wide as surface between dorsocentral bris-
tles, surstylus not bifurcated ......fisrsovi sp. n.
- All the surface between dorsocentrals black-green,
surstylus bifurcated........... acrosticalis Curran
9. Acrostichals in a single row or absent........ 10
- Acrostichals in two rows, sometimes irregular ...
................................................. 13
10. Acrostichals strong, extending to posterior third
of mesonotum, frons black, pollinose............. 11
- Acrostichals weak and restricted to anteriormost
of mesonotum, or absent, frons shining blue .....
..................................................12
11. First flagellomere oval, with rounded apex ... .
................................... unicolor Becker
- First flagellomere subtriangular, with sharp or
right-angle apex................ shcherbakovi sp. n.
12. Hind tarsi entirely black; R,, and V, reach
costa at wing apex.................. cognatus Parent
- Hind tarsi yellow at base; rV, reach costa be-
fore wing apex...................... erroneus Parent
13. Acrostichals weak, arranged in irregular two
rows; fore tibia with two basal dorsal setae
only, fore basitarsomere wiihout dorsal s tae .
.................................. kononenkoi sp. n.
- Acrostiohals arrang d in two regular rows; fore
tibia with two basal dorsal and two dorsal setae
in the middle; fore basitarsomere with 1 - 2
dorsal setae..................................... 14
14. Frons entirely pollinose, fore basitarsomere 1.2
times as long as fore tibia.......................
................................ acrosticalis Curran
- Frons more than half shining green; fore
basitarsomere as long as fore tibia.......... ......
....................................frontalis Curran
Descriptions and new records
Tenuopus kononenkoi sp. n.
(Fig. l)
Holotype. Male, Uganda: Ruwenzori Range, XII.
1934 - I.1935, B.M.E.Afr.Exp. B.M. 1935 - 203 /
Mobuku Valley, 7300 ft (F. W. Edwards).
Pararypes. Female, Uganda: Kigezi Dist., XI.1934,
B.M.E.A&.Exp. B.M. 1935 - 203 / Mt. Mgahinza, 8000
B (F. W. Edwards); female, Uganda: Ruwenzori Range,
Nyinabitaba, 8650 ft, 7 - 13.VII.1952 (D. S. Fletcher)/
Ruwenzory Exp. B.M. 1952 - 566.
Description: Male. Frons black-violet, grey pol-
linose. One pair of well developed ocellar, occipital
and postvertical bristles, the last one present nearly
at end of postocular row. Ventral postcranium cov-
ered with irregular white hairs. Face silvery-white,
narrow, 10 times as high as wide in the middle, and
half as wide as first flagellomere. Epistome nearly
half as wide as slightly bulging clypeus. Palpi and
proboscis short, yellow, covered with white hairs,
proboscis also with a pair of black lateral setae.
Antennae yellow-orange, as long as height of head.
Pedicel witb n srown of short black bristles. First
flagellomere slightly longer than its height al. base,
rounded. Arista dorsal, microscopically haired, twice
as long as articles of antcnna together.
Mesonotum and pleura yellow-orange. Area between
dorsocentrals and scutellum mostly metallic blue-
green. Seven dorsocentral bristles with first bristle
somewhat smaller and with a few hairs in front of
them; short acrostichals in two regular rows, restricted
to anterior two thirds of mesonotum. Scutellum with
two strong bristles and two hairs from the outside.
Propleuron with 1 - 2 yellow setae.
Legs yellow, apical segments of middle and hind
tarsi dark. Fore and middle coxae from the front
with hairs and some black apical bristles of various
length. Hind coxae with one long black external
bristle. Middle and hind femora with a preapical
anterior bristle. Fore femora with many pale fine
postero-ventral hairs, as long as diameter of femo-
ra. Fore tibia with one anterodorsal and one poster-
odorsal in basal part, one or two posterodorsal in
the middle and on or two apical bristles. Fore
basitarsomere with one dorsal cheta in thc middle.
Length ratio of fore coxa to femora to tibia to tar-
sus (segments from first to fifth) - 3.0: 3.8: 5.1:
5.5: 3.8: 1.4: 0.8: 0.6. Middle femora bears a
row of black ventral hairs, nearly as long as diam-
eter of femora. Middle tibia with three anterior, three
dorsal, five antero-ventral, three postero-ventral, four
or five apical bristles. Middle basitarsomere with a
few short dorsal and ventral setae. Lcngth ratio of
middle coxa to femora to tibia to tarsus (segments
from first to fifth) - 2.0 . 4.3: 6.9: 5.7: 2.2 .
1.7: O.B: 0.4. Hind femora without long hairs. Hind
tibia witb four or five anterior, two or three antero-
dorsal, four or five postero-dorsal bristles, with some-
what elongated numerous postero-ventral setulae, with
two or three apical bristles. Hind basitarsomere with
a few short dorsal and ventral setae. Length ratio of
hind coxa to femora to tibia to tarsus (segments first
to second) - 1.5: 5.9: 9.8: 3.6: 3.2.
Wings slightly darkened, veins brown. Ratio of parts
of costa between R2+3, and R4+5, to those between
R4+5, and M1 - 3.3 : 0.2. M1 with gentle arc to
apex, reach costa before wing apex; M2 present as
fold on membrane; crossvein ei-irc straight. Ratio
of crossvein m-cu to apical part of M1+2,, (fork-han-
dle) to apical part of CuA1 - 2.0: 5.7: 5.3. Anal
vein reduced. Anal angle obtuse. Squamae yellow,
with brown apex and pale bristles. Halteres yellow
with orange knob, halter stem thin and long.
Abdomen mostly yellow-brown, black setose: 1st
segment yellow, 2nd and 3rd - yellow with brown
edgings, 4th and 5th - mostly brown, rest of ab-
domen and hypopygium brown, cerci and surstyli
yellow. Cercus scoop-shaped, densely haired. Sursty-
lus deeply bifurcated, lobes thin and long, ventral
lobe with thin appendix expanded backwards, dor-
sal lobe with long apical bristle. Epandrial lobes
prominent, with long setae.
Female. Similar to male except lacking male sec-
ondary sexual characters, otherwise as follows: frons
dark-green-violet, slightly grey pollinose; face yel-
low-brown, silvery-grey pollinose, wide, nearly thrice
as long as wide; palpi and proboscis as well as
antennae dark-orange; ratio of length lo height of
first flagellomere to length of arista - 1.5: 1.0: 7.5.
Acrostichals arranged in irregular two rows. Femo-
ra without long hairs. Four tibia with one antero-
dorsal and one posterodorsal bristles in basal fifth,
without distinct dorsal setae in the middle. Four and
hind basitarsomeres without bristles; middle basitarso-
mere with a few short ventral setae. l.ength ratio of
fore coxa to femora to tibia to tarsus (segments from
first to fifth) - 2.4: 3.2; 3.7: 3.4: 1.6: 1.1:
0.8: 0.5. Lengtlc ratio of middle coxa to femora to
tibia ro tarsus (segments from first to tifth) - 1.9:
4.2: 6.2; 3.7: 1.4: 1.0: 0.6: 0.4. Length ratio
of hind coxa to femora to tibia to tarsus (segments
from tirst to fifth) - 1.3: 5.0: 7.2: 2.0: 2.2:
1.3: 0.7: 0,5. Ratio of parts of costa between R2+3
and R4+5 to those between R4+5 and:M1 - 3.5: 0.5.
Ratio of crossvein m-cu to apical part of M1+2 (fork-
handle) to apical part of CuA1 - 2.0: 5.6; 4.7. All
abdominal segments yellow-orange with brown
edgings.
Lcngtb: male body 9.5 mm, body with antennae
11.1 mm, wing-length 6.9 mm, wing-width 2.2 mm;
female body 6.1 - 6.5 mm, body with antennae 7A -
7.8 mm, wing-lenglh 6.7 - 7.1 mm, wing-width 2.2 nun.
Distribution. Uganda,
Etymology. The species is named in honour of the
Russian entomologist Dr, A. P. Kononenko.
Diagnosis. T. kononenkoi is most closely related
to T. acrosticalis, differing in having black cilia-
tion on middle femora and only one dorsal seta on
fore basitarsomere. Male surstylus and epandrial lobes
have some similarity with those of T. acrosticalis.
Females, contrary to male, have weak acrostichals,
arranged in irregular two rows, only two basodorsal
setae on fore tibia and bare fore basitarsomere, though
thesc characters can be also used for diagnosis.
Tenuopus zverevi sp. n.
(Figs 2, 3)
Holotype. Male, Belg. Congo: Elisabethville, 22.VI.
l933 (Ch. Seydel). B.M. 1933 - 520.
Description. Male. Similar to T. kononenkoi ex-
cept as noted. Six dorsocentral bristles with first
bristle somewhat smaller. Fore femora with many
pale fine postero-ventral hairs, as long as diameter
of femora. Fore basitarsomere with four dorsal che-
tae. Length ratio of fore coxa to femora to tibia to
tarsus (segments from first to fifth) - 2.3: 3.9:
4.6: 6.8: 2.8: 1.5: 0.6: 0.5. Middle femora bears
a row of 6 - 8 black ventral bristles in the middle
half, 1.5 times as long as diameter of femora, and
same white hairs. Middle tibia with four anterior,
two dorsal and three ventral bristles. Length ratio
of middle coxa to femora to tibia to tarsus (seg-
ments from tirst to fifth) --- 1.6: 4.5: 6.8: 5.7:
2.0: 1.6: 0.7: 0.4. Hind femora without long hairs.
Length ratio of hind coxa to femora to tibia to tar-
sus (segments from first to fifth) - 1.4: 5.7: 9.3:
3.7; 2.8; 1.6: O.B: 0.5. Ratio of parts of costa
between R2+3, and R4+5 to those between R4+5 and
M1 - 2.8: 0.2. Ratio of crossvein m-cu to apical
part of M1+2 (fork-handle) to apical part of M3+4 -
1.9: 6.4: 6.1. Anal vein partly reduced. Anal angle
right.
Abdominal segments, except first, orange with
brown edgings, hypopygium orange-brown, cerci and
surstyli yellow, apex of surstyli brown. Cercus spoon-
shaped, densely haired. Surstylus shallow bifurcated
at apex. Epandrial lobes prominent, with long setae.
Length: body 8.2 mm, body with antennae 9.8 mm,
wing-length 6.8 mm, wing-width 2.2 mm.
Distribution.. Zaire.
Etymology. The species is named in honour of the
Russian entomologist Dr. A. A. Zverev.
Diagnosis. T. zverevi is close to T. acrosticalis
group. Howcvcr, male has additional 6 - 8 strong
black ventral bristles on the middle femora. Ii is
clearly distinguished by biseriate acrostichals, and
by four dorsal setae on four basitarsomcre. Details
of bypopygium are quite differcnt from those of other
species except T.maculatus.
Tenuopus fursovi sp. n.
(Fig. 4)
Holotype. Male, Liberis: Kpaine, 1400 ft (7'10'
N, 9'7' W), 7.1.1953. N L591 (Dr. W. Peters) / Pres.
Dr. W. Peters. B.M. 1954 - 410.
Description. Similar to T. acrosticalis Curran ex-
cept as noted. Ratio of length to height of first flag-
ellomere to length of arista - 17: 14: 85. Median
green-brownish vitta of mesonotum half as wide as
surface between dorsocentral bristles. Second tarso-
mere of fore tarsus with small basoventral cicatrix
covered with microscopic white hairs. Length ratia
of fore coxa to femora to tibia to tarsus (segments
from first to fifth) - 2.5: 3.5: 4.2: 4.9: 1.9:
1.9: 0.7 . 0.5. Length ratio of middle coxa to fem-
ora to tibia to tarsus (segments from first to fifth) -
1.5: 4.0; 5.7: 4.8: 1.7: 1.4: 0.7: 0.5. Length
ratio of hind coxa to femora to tibia to tarsus (scg-
ments from first to fifth) - 1.8: 5.0: 8.5: 3.2:
2.6: 1.7 . O.B: 0.6. Ratio of parts of costa between
R2+3, and R4+5, to those between R4+5, and M1 - 2.7:
0.2. M1+2 and M1 form obtuse angle. Ratio of cross-
vein m-cu to apical part of M1+2 (fork-handle) to
apical part of CuA1 (up to the wing edge) - 2.0:
4.9: 3.6. Hypopygium yellow, cercus spear-shaped,
with pointed apex, densely haired; surstylus dissected
on apex, with curved lobes; epandrial lobes promi-
nent, with long setac.
Length: body 7.4 mm, body with antennae B.7 mm,
wing-length 6.0 mm, wing-width 1.9 mm.
Distribution. Liberia.
Etymology. The species is named in honour of the
Russian entomologist Dr. V. Fursov.
Diagnosis. T. fursovi differs from males of the
other species of Tnuopus by small basoventral
cicatrix on second tarsomere of fore tarsus. It is very
closely related to T. acrosticalis, being separated
by the following characters. Median green-brown-
ish vitta of mesonotxuu half as wide as surface be-
tween dorsocentral bristles, surstylus not deeply bi-
furcated.
Tenuopus shcherbakovi sp. n.
(Fig. 5)
Holotype. Female, Uganda: Namanve, 11.10.1934
(J.Ford). N 148 / Uganda, J. Ford. B.M. 1937 -
273/ A191.
Description. Similar to T. unicolor except as noted.
Frons and face entirely silvery-white pollinose, ground
colour of frons black, face 4 times as high as its
width in the middle. Antenna yellow, first flagel-
lomere subtriangular, with distinct sharp or right-
angle apical angle (not pointed). Ratio of length to
height of first flagellomere to length of arista -
11: 11: 80. Length ratio of fore coxa to femora to
tibia to tarsus (segments from first to fifth) - 2.3:
3.5: 3.9 '. 3.2: 1.9 '. 1.4: 0.7: 0.4. Length ratio
of middle coxa to femora to tibia to tarsus (seg-
ments from first to fourth) --1.8: 4.1: 6.3: 3.8:
1.3: 1.0: 0.5. Length ratio of hind r:oxa to femora
to tibia to tarsus (segments from first to fifth) -
1.7: 4.9: 7.8: 2.0: 2.4: 1.4: 0.8: 0.4. Ratio of
parts of costa between R2+3 and R4+5 to those be-
tween R4+5 and M1 - 2.7 : 0.3. M1+2 and M1 form
obtuse angle. Ratio of crossvein m-cu to apical part
of;V, (fork-handle) to apical part of CuA1, (up to
the wing edge) - 3: 10: 8.
Length: body 6.4 mm, body with antennae 7.8 mm,
wing-length 6.5 mm, wing-width 1.9 mm.
Distribution. Uganda.
Etymology. The sper:ies is named in honour of the
Russian entomologist Dr. D. Shcherbakov.
Diagnosis. T.shcherbakovi differs from all the other
species of Tenuopus by small short subtriangular
first tlagellomere. It is very closely related to T.
unicolr, being separated by mentioned above char-
acters.
Tenuopus unicolor (Becker)
(Fig. 6)
Material examined. Female, Kenya: 24 - 29.XII.1970
(A.E. Stubbs). B.M. 172 - 211 / Meru, 5 - 7 000 feet.
Diagnosis. A female from the NHML collection is
most closely related to T. unicolor as briefly de-
scribed by Becker (1914, 1923). It can be separated
from the other species by uniseriate acrostichals,
monochrome wings, weak pollinose black frons and
short oval first flagellomere. Additional diagnostic
features are as follows. Face white pollinose, 3.5
timcs as high as wide in the middle; ratio of length
to height of tirst tlagellomere to length of arista
14: 12: 80. Scutellum brown from above, with
metallic retlection, postscutumbrownish; six dorso-
centrals with first bristle somewhat smaller. Middle
and hind femora with strong anterior preapical bris-
tles, fore tibia with two basodorsal and two dorsal
setae in the middle. Length ratio of fore tibia to
first tarsomere - 4.0: 3.5, hind basitarsomere yel-
low except apex. M1+2 and M1 form right angle. M1
renches costa just before wing apex. Ratio of cross-
vein m-cu to apical part of M1+2 (fork-handle) to
apical part of Crcd, (up to the wing edge) - 3: 10: 10.
Distribution. Kenya, Zaire (?).
Tnuopus acrosticalis Curran
(Fig. 7)
Material examined. Male, Uganda: Mukono, 1909.
Rec-d from Col. Sir D. Bruce, A.M.S. 1910 - 154 /
Tenuopus acrosticalis Curr., O. Parent [det.]. 2 fe-
males, Uganda: Ruwenzori Range, X11.1934 - 1.1935.
B.M.E.Afr. Exp. B.M. 1935 - 203 / Kllembe, 4500
ft (F. W. Edwards). 2 females, Kenya: IS.Xll.l970
(A. E. Stubbs). B.M. 1972 - 211 / Kakamega For-
est, 5200 feet. Female, S. Nigeria: Ibadan, 8.XII.1913
(Dr. V. A. Lamborn) / Pres. by Imp. Inst. Ent. B.M.
1934 - 547 / Tenuopus acrosticalis Curr., O. Parent
[det.]. Male, Gold Cost, 1913 (A. E. Evans) [NHML]/
Terruopr~s frontalis Curr., O. Parent [det.). Male,
Ghana: Kwadaso / 21.V11.1969 (leg. Endrody-Y)
[HNHM].
Diagnosis. Frons entirely pollinose; all the surface
between dorsocentrals black-green, acrostichals
strong, arrnnged in two rows extending to posterior
third vf mesonotum; wings monochrome; fore, mid-
dle and hind femora with white hairs beneath, fore
basitarsomere 1.2 times as long as fore tibia, with
2 dorsal setae; surstylus bifurcated. Hypopygium
structure in T. acrosticalis male, identified by O.
Parent, shows distinct diffcreuce from that in other
species except T. kononenkoi. A male with blue label
from the collection of NHML, identified hy O. Parent
as T. frontalis, is similar to male of T. acrosticalis,
except some subtle differences in colour features;
hypopygium morphology of both specimens with no
difference.
Distribution. Uganda, Nigeria, Zaire, Kenya, Ghana.
Tenuopus maculatus Parent
(Figs B, 9)
Material examined. Male, Zomba, Nyasaland (M.S.
Stannus) / Pres. by Imp. 1nst. Ent. B.M. 1933 - 414/
Tenuopus maculatus Par., O. Parent [det.]. Male,
Nyasaland, Zomba, 7.V.1911 (Dr. Y.... Cild.), 1911 -
250. Male, Shimba Hills, March 1941 (van Sommeren)/
Com. Inst. Ent. Coll. Yo. 13261. Female, Ngong, Feb.
1943 (van Sommeren) / Com. Inst. Ent. Coll. No.
13261. Female, Tanganyika, Amam, 3000 ft, 1956
(J. G. Halcrow) / Com. Inst. Ent. Coll. No. 15176 /
Psilopus not in B.M. nr. unicolor Beck., van Emden
det. 1957 / Brit. Mus. 1957 - 624. Female, Tanza-
nia, 2900 m, Ma. Kilimanjaro, First Bivouae on Umbwe
Route / 1985.02.14, Nr.77 (L. Peregovitz) [HNHM].
Diagnosis. Males and females of T. maculatus can
be easily identified by one dark apical spot along
wing costa. Hypopygium is very different from that
of the other species examined, except T. zverevi.
Distribution. Malawi, Tanzania.
Tenuopus erroneus Parent
(Fig. 10)
Material examined. 2 males, E.Cape Prov., Katberg,
1 - 13 XI.1932 / S. Africa (R. E. Turner). Brit. Mus.
1932 - 551. Male and 2 females, E.Capc Prov., Katberg,
4000 ft, XII.1932 / S.Africa (R. E. Turner). Brit.
Mus. 1933 - 69. Female, Mossel Bay, Cape Province,
Dec. 1921 / S.Africa (R. E. Turner), Brit. Mus. 1922 -
25 / Tenuopus erroneus nom. nov. = T. univittatus
Curr. nec Lw., O. Parent [det.]. Female, E.Cape Prov.,
Katberg, 4000 ft, I - 15.l.l933 / S. Africa (R. E.
Turner). Brit. Mus. 1933- - 79. Female, East London,
3.8.1924 (H. K. Munro) / S. Africa: Pres. by H. K.
Munro, B.M. 1928 - 255 / Tenuopus univittatus Lw.,
det. C. H. Curran. Female, on lab. windows, Eshowe,
Zululand (C. V. Meeser). Coll.738, 13.XI.1935 /
Tenuopus cognatus Par., det. D. Hollis, 1962. Fe-
male, caught in lab. on window, showing a green
phosphorus light / caught in lab.: Eshowc, Zululand.
Coll.1774, 15.1.1937 / Tenuopus cognatus Par., det.
D. Hollis, 1962.
Diagnosis. T. erroneus is a type species for the
genus, but it has extremely different hypopygium
morphology, comparing with the other species ex-
amined. In general hypopygium structure remains
the same, except that surstylus and epandrium lobes
are short, the former is curved and sclerotized. T.
erroneus males are clearly distinguished by short
lateral plumage on 4th and 5th tarsomeres of fore
tarsi. Females differ from the other species in hav-
ing the following complex of attributes. Acrostichals
absent, frons shining blue-violet, hind tarsi yellow
at base,M1 reaches costa before wing apex.
Distribution. South Africa.
Ackaowledgements
I am sincerely grateful to Dr. Brian Pitkin for his
kindness in giving me the opportunity to study the
collection of the Natural History Musemn (London).
Some specimens were kindly loaned for me by Dr.
Laszlo Papp from the Hungarian Natural History
Museum (Budapest).
References
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Received 4.Xl.l995
