SYNOPSIS OF GEXERA. 67 



40 (39) Costa and stigma black or fuscous, third joint of antennae dis- 



tinctly longer than fourth. Poecilosoma (in part). 



41 (34) First cubital cellule receiving no recurrent nervure, two middle 



cellules in posterior wings. 



42 (43) Lanceolate cellule with oblique cross nervure. Dolerus. 



43 (42) Lanceolate cellule petiolate. Dineiira fiwoula var. 



33) Antennae 10-16-jointed. 



46) Lanceolate cellule petiolate. Fenella. 



45) Lanceolate cellule with an oblique cross nervure. Phyllotoma. 



44 

 45 



46 . 



47 (83) Wings with four cubital cellules. 



48 (51) Second cubital cellule receiving both recurrent nervnres. 



49 (50) Lanceolate cellule petiolate. Dineura. 



50 (49) Lanceolate cellule contracted. Hemichroa. 



51 (48) Second cellule receiving only one nervure. 



52 (53) Antennae 10-jointed, subclavate. Athalia. 



53 (52) Antennae 9-jointed, mostly filiform. 



54 (55) Lanceolate cellule petiolate. Blcnnocampa. 



55 (61) Lanceolate cellule contracted. 



56 (57) Antennae short, thick, mesonotum not marked with white. 



Hoplocampa. 



57 (56) Antenna long, filiform, mesonotum and metanotum with white 



marks. Syncerema. 



58 (61) Lanceolate cellule open, without cross nervure. 



59 (60) Body short, thick, costa thickened and dilated before stigma. 



SelandricL 



60 (59) Body longish, cylindrical, costa not dilated. Strongylogasier. 



61 (69) Lanceolate cellule with an oblique cross nervure. 



62 (63) Hind wings with no middle cellule. Taxonus. 



63 (64) Hind wings with one middle cellule. 



6i (65) Eyes reaching to base of mandibles, abdomen black. 



Eriocampa in part. 



65 (64) Eyes not reaching to base of mandibles, abdomen spotted with 



white. Poecilosoma. 



66 (63) Hind wings with two middle cellules. 



67 (68) Eyes reaching to base of mandibles. Eriocampa in part. 



68 (67) Eyes not reaching to base of mandibles. Strongylogaster in part. 



69 (61) Lanceolate cellule with a short perpendicular nervure or shortly 



contracted. 



70 (73) Posterior coxae large, reaching to fourth abdominal segment. 



71 (72) Antenna setaceous, longer than abdomen, pleurae broadly 



marked with white. Pachy protasis. 



72 (71) Antennae short, thick, pleurae seldom marked with white. 



Macrophya. 



73 (70) Coxae of normal size, not reaching to fourth abdominal seg- 



ment. 



74 (77) Antennae shorter than the head and thorax, thickened at the 



apex, never filiform or setaceous. 



75 (76) Eyes reaching to the base of the mandibles. Allantus. 



76 (75) Eyes not reaching to the base of the mandibleo. Sciopteryx. 



77 (74) Antennae longer than the head and thorax, filiform or setaceous, 



seldom fusiform. 



78 (79) Blotch absent, stigma white and fuscous, or entirely white, 



scutellum and post-scutellum white. Tenthredopsis. 



79 (78) Blotch distinct, stigma black or green ; post-scutellum not 



white. Tenthredo. 



