KEYS TO SWEDISH GENERA AND SPECIES OF DOLICHOPODIDAE

by I.Ya. Grichanov

Igor Grichanov, All-Russian Institute of Plant Protection, Podbelskogo 3, St. Petersburg, Pushkin, Russia.E-mail: grichanov@hotbox.ru
Last updated: 6 May 2003 

Genus Neurigona Rondani
1. Males: hypopygium present ... 2
Females: hypopygium absent ... 6

2. Mesonotum yellow, usually slightly shining, without pollen ... 3

Mesonotum matt, covered with yellowish-grey or brownish-grey pollen ... 4

3. Abdominal tergite V moderately long, without lateral lobe; fore tarsus short, 1/4 shorter than fore tibia; abdominal tergites with dark transverse bands along anterior margin; hypopygium sessile, shining black; 4.0-4.5 ... erichsoni (Zetterstedt)

Abdominal 5th tergite short, with distinct lateral lobe directed downward; hypopygium distinctly pedunculate; III and IV tergites with lobelike lateral widenings; V tergite having lobes black at apex; 6.0 ... pallida (Falln)

4. 3rd and 4th segments of fore tarsus black, black plumose; 5th segment of the same tarsus white; abdominal tergites along anterior margin with strongly pronounced dark transverse bands having deep emargination posteriorly; hypopygium pedunculate; 3.5-5.0 ... quadrifasciata (Fabricius)

Fore tarsus simple ... 5

5. ?1+2 straight or nearly straight; R4+5 ? ?1+2 almost parallel; wing darkened, darker along anterior margin; 5th segment of fore tarsus weakly modified; 4.0-5.0 ... suturalis (Falln)

?1+2 strongly curved at middle of distal part; R4+5 ? ?1+2 converging; fore tarsus with very long anterior and short posterior claws; 5th segment of the same tarsus with strong curved ventral setae; 4.0-5.0... abdominalis (Falln)

6. Mesonotum yellow ... 7

Mesonotum dark, grey pollinose, matt ... 9

7. Mesonotum brilliant; black transversal bands on abdomen are narrow and distinct; 5th segment yellow; 3.5 ... erichsoni (Zetterstedt)

Mesonotum matt ... 8

8. 6 dorsocentrals; abdominal tergites along anterior margin with black transverse bands having deep median emargination posteriorly; segment V black with yellow apex; smaller species, 3.5-4 ... quadrifasciata (Fabricius)

7 dorsocentrals; abdomen including segment V entirely yellow; larger species, 6 ... pallida (Falln)

9. ?1+2 straight or nearly straight; R4+5 ? ?1+2 almost parallel; hind tibia more or less darkened ... suturalis (Falln)

?1+2 strongly curved at middle of distal part; R4+5 ? ?1+2 converging; hind tibia-yellow ... abdominalis (Falln)


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