SYKPHID-E. 9 



23 (34) Marginal cell closed and usually pro- 



vided with a long stalk ; if it is 

 shortly stalked or even narrowly 

 open, then the kink in the third vein 

 is angular and appendiculated. 



24 (29) Eyes bare ; kink in third vein deep and 



usually appendiculated ; scutelluni 

 of larger size, margined. 



2o (26) Subcostal and marginal cells at end 

 about of equal length, the stalk of 

 the latter cell being very short ; eyes 

 adorned with pale spots and touching 

 in the male, the vertical triangle 

 being in the same sex long and 

 narrow ; frons of female narrow ; 

 antennal tubercle very prominent ; 

 wings pubescent all over their sur- 

 face PKOTYLOCERA, p. 61. 



26 (2o) Marginal cell much shorter at end 



than the subcostal one, the former 

 having a long stalk ; eyes without 

 pale spots, often adorned with hori- 

 zontal dark bands; vertical triangle 

 of the male short ; antennal tubercle 

 not prominent ; wings entirely bare, 

 or pubescent only on limited areas 

 near the middle or towards the 

 tip. 



27 (28) Eyes of male touching and provided 



with larger facets above ; head very 

 swollen, the frons with a denudate 

 callose area above the antennae and 

 also very broad in the female ; hind 

 femora not thickened; wings bare, 

 very rarely pubescent towards the 

 middle PHYTOMIA, p. 65. 



28 (27) Eyes of male widely separated and 



with small facets above ; head not 

 swollen, without a supra-antennal 

 callosity ; frons of female narrow ; 

 hind femora strongly thickened ; 

 wings pubescent towards tip SIMOIDES, p. 76. 



29 (24) Eyes hairy, at least above ; if bare, 



'they have brown spots ; kink in the 

 third vein broad and rounded, never 

 appendiculated ; seutellum of ordi- 

 nary size, not margined. 



30 (33) Eyes hairy only above or rarely wholly 



bare, adorned with dark spots or 

 with dark stripes. 



31 (32) Eyes with brown spots, sometimes 



bare and sometimes separated in the [p. 77. 



male LATHYROPHTHALMUS, 



32 (31) Eyes adorned with brown perpendicular 



stripes: eyes of male always united 



and always hairy ERISTALODES, p. 87. 



