SCENOPINIDAE OF THE WORLD 



113 



Halter knob dark brown, abdomen with three broad white bands 



S. velutinus (Krober) 



5. Abdomen with three narrow white bands S. buscki, new species 



Abdomen with first two bands broad, third narrow . . S. schultzi Enderlein 



6. Wing hyahne 7 



Wing brown or white 11 



7. Halter knob red-brown or brown 8 



Halter knob white (Hawaii) S. adventicius (D. E. Hardy) 



8. Halter knob red-brown 9 



Halter knob brown 10 



9. Eighth sternum with a prominent nipple.ikc swelling before end 



S. schulzi Enderlein 

 Eighth sternum without such swelling S. buscki, new species 



10. Halter knob dark brown S. velutinus (Krober) 



Halter knob brown above, white below S. fijianus (Krober) 



11. Wing milky white, halter white S. pygmaeus Loew 



Wing brown, halter brown 12 



12. Antenna with third segment very small S. curticornis (Krober) 



Antenna with third .segment very large S. magnicornis (Krober) 



74. Scenopinus adventicius D. E. Hardy 



Figure 74 

 Scenopinus adventicius D. E. Hardy, 1960, p. 329. 



This dark-winged species, along with S. papuanus, has been er- 

 roneously identified as niger (DeGeer), particularly in the more 

 frequently captured females. It can be distinguished by its smaller 

 size and by R4 branching well beyond the middle of the cell. 



Figure 74. — Scenopinus adventicius D. E. Hardy, male, female: a, wing; b, c, lateral and 

 frontal aspects of male head; d, e, lateral and frontal aspects of female head;/, g, enlarged 

 details of male and female antennae; h-j, ventral, lateral and posterior aspects of male 

 terminalia; k, ventral aspect of female 8th sternum; /, lateral aspect of female 8th and 9th 

 segments; m, female 9th sternum and bursa. 



