Genera of Winjlcss Hrucliydcrinu'. 3 



loiifritiulinal or Dbliqiit- impn'ssions 



witli 11 oorivfx spiicf Ix-lwet-ii tlnMn. 

 11 (I'J) 'I'lio tlin-o iiii'diaii ventral st'jfrufiit.i 



siibequul ill len^rlli ; forelu-aii trisiil- 



catti ; scape .short and stout, the 



exterimlly visible portion nmclj 



shorter than the fnnifle ; ro.«ilnnn 



separated from the head hy a furrow 



that extends quite to the side .... liloni/nm, hfchli. 

 \2 {]]). Second ventral ^e>rnlent lon^M,'r than 



tlie tliird or fourth; forehe.id with 



at must a sin^-le furrow ; seape :5len- 



der, the exposed portion almost or 



quite as lon<r a-s the funiclu. 

 l.'!(ll). .Meta-jternum between the coxae very 



much shorter than the middle 



cox^; mandibles .'iqnamose, with a 



well-marked lon<^tudinal dorsal 



carina running from the scar to the 



base I'roscep/tula'lcrcs, ."Schh. 



1 1 (1<'J). Metasteruum as long as or only 



slightly shorter than the middle 



coxa) ; mandibles without a dorsal 



carina, 

 lo (16j. Scrobes strongly dilated behind ; scape 



not exceeding the middle of the 



eye ; funicle and mandibles clothed 



with scales ; eyes finely facetted . . Viuscopit^, gen. no v. 

 10 (lo). Scrobes almost parallel-sided ; scape 



reaching hind margin of eye ; funicle 



and mandible entirely devoid of 



scales ; eyescompiiratively coarsely 



facetted [Strop/iosomiis, iiillb.J 



17 ( -)• Mentum setose. 



18 ('Jl). Corbels of hind tibije ver}' oblique, 



lying almost entirely on the inner 



face of the tibia', their upper fringe 



of seta) ascending the dorsal edge 



of the tibine in a straight line (as in 



Tani/mecus) ;. second ventral seg- 

 ment distinctly longer than the 



third or fourth, hind margin of the 



first more or less sinuate in the 



middle, the incision shallow. 

 10 i'JO). nostrum separated from the forehead 



by a stria ; eyes very prominent and 



produced backwards I'rutostrop/iiis, gen. nov. 



20 (10). liostruni continuous with the fore- 

 head ; eyes simple, only .Mightly 



convex lA'aropf, gen. uov. 



'2\ (Id). Corbels of hind tibio) terminal, not 



ascending the tibia) ; the three 



median ventral segments subequal 



in length, hind margin of the first 



segment straight, the inci.'i<'n deep. 

 -'2 (23). Corbels of hind tibiie <*nch)Ned; scape 



slender, clavate ; forehead trisulcate ; 



1* 



