34 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxhi. 



Third joint of the fiagellum not longer than the first; clypeus anteriorly at the 

 middle neither impressed nor emarginate. (195) Ddictes Forster. 



19. Transverse median nervure in hind wings broken at or below the middle, never 



above the middle 20 



Transverse median nervure in hind wings broken above the middle. 



(196) StrepsiinaUus Forster. 



20. Head widened behind the eyes, the temples broad (197) .EnnpJrx Forster. 



Head not widened behind the eyes, the temples flat or narrow. 



Discoidal nervure not longer than the base of the discocubital cell 21 



Discoidal nervure longer than the base of the discocubital cell. 



(198) J^(.s/;-».v FOrster. 



21. Metanotum with the apii-al carina strongly angnlated or toothed. 



(199) Lymeon Forster. 

 Metanotum with the apical carina normal. 



Radius more or less curved, but not broken at a right angle 22 



Radius Ijroken almost at a right angle { 200 ) Pampliylux Forster. 



22. Discoidal cell not narrowed at l)ase, the apex lying far from the hind margin of 



the wing 23 



Discoidal cell iimch narroweil at base, the apex not far from the hind margin 

 of wings, the entire radius strongly arcuate; transverse median 

 nervure in hind wings quite near the inner margin. 



(201) Rluid'mrgiis Forster. 



23. Metanotum without carin;e (202) Aschistus Forster. 



Metanotum irith carinaj. 



Clypeus anteriorly vilhont an im2:)ression 24 



Clypeus anteriorly with an impression on l)oth sides. 



Metanotum coarsely rugose; antennae in male thick, tlie first joint of 



the flagellum not tlirice as long as thick (203) Tolinerus Forster. 



Metanotum 7ioi coarsely rugose; antennje slender, filiform, the first 

 three joints of flagellum at least five times as long as thick. 



. (201) Rhadi)iocera Forster. 



24. Clypeus anteriorly not Indentate; middle lateral areas not broadly carinately 



prominent at apex 25 



Clypeus anteriorly at the middle bidentate; middle lateral areas at apex broadly 

 carinately jirominent (205) Is(i(l('lj)}ius Forster. 



25. Penultimate joint of the maxillary paljii more than half as long as the last. . 26 

 Penultimate joint of the maxillary palpi only half as long as the last. 



(206) Blapsidotes Forster. 



2H. Third joint of hind tarsi as long as or longer than the fifth 27 



Third joint of hind tarsi shorter than the fifth. 



Spiracles of the first abdominal segment placed somewhat before the mid- 

 dle; ovipositor with a slight upward t-urve. 



(207) Allotmicrux Forster. 

 27. Third joint ( >f hind tarsi longer than the fifth 29 



Third joint of hind tarsi of an equal length with the fifth. 



Clypeus distinctly but not deeply separated; all femora, and especially the 

 hind pair, distinctly thickened; head much narrowed behinu 

 the eyes; the middle lateral areas at apex not strongly promi- 

 nent 28 



Clypeus very deeply separated; femora not especially thickened; head not 

 esi)ecially narrowed back of eyes; metathorax with five areas 

 at ajjex, the nuddle lateral area strongly prominent at apex. 



(208) Fhdouyymuti Forster. 



