400 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 112 



29(1) Abdomen with bulbous swelling, clavate, or decidedly widest at 



fourth, fifth, or sixth segment 30 



Abdomen parallel sided, if some segment wider very slightly so . 33 

 30(29) Abdomen with subapical bulbosity; hypopygium with large apical 



process (figs. 21, 46) gibbiventris 



Abdomen clavate or of different shape; apical process of hypopygium 



small 31 



31(30) A spinelike process above behind each eye; seventh tergum triangular; 



eighth sternum partially hidden by seventh ntariae 



Without such spinelike processes 32 



32(31) Abdomen widest across apex of fourth segment andersoni 



Abdomen widest across apex of fifth segment angulata 



33(29) Apical process of hypopygium hooked and visible under subtriangular 



claspers, margin of hypopygium deeply concave above before apex 



(figs. 26, 38) ncivai 



Hypopygium on lateral aspect different 34 



34(33) Apex of upper margin of hypopygium with long tapering process 



mostly hidden by broad rectangular claspers; hypopygium almost 



at right angle to rest of abdomen (fig. 13) . . . . campulligaster 



Hypopygium different, in line with rest of abdomen or slightly bent 



upward 35 



35(34) Apical angles of abdominal terga 2 to 6 produced laterally . . . . 36 



Apical angles of abdominal terga 2 to 6 not produced laterally . . 38 

 36(35) Dense patches of golden short hairs on several places, very conspicu- 



ous on base of fourth, fifth, and sixth segments; forefemur thickened 

 on basal half of the part basad of first ventral spine (fig. 74). 



insidiatrix 

 Without dense patches of golden hairs, forefemur gradually thickened 



to first ventral spine 37 



37(36) Head and thorax densely granulate; hind margin of sixth tergum with 



backward sloping tubercle; 12 mm. long (fig. 1) . . . . haitiana 



Head and thorax not granulate; sixth tergum without such tubercle; 



15 mm. long lissa 



38(35) Hind margin of sixth sternum almost straight; head and thorax copi- 

 ously granulate; seventh tergum triangular apically, not keeled, 

 extending little if any beyond hypopygium; upper margin of hypo- 

 pygium convex pascoei 



Hind margin of sixth sternum with a broad central rounded concavity 

 and smaller lateral ones, the sternum longest at a point between 

 the lateral margin and median line or with a different set of char- 

 acters 39 



39(38) Pronotum on hind margin with two short spines set on round eleva- 



tions; middle and hind femora with raised bumps; sparsely granu- 



lose; overall body length 11.3 mm nebulosa 



Without spines on apex of pronotum and with other set of charac- 

 ters 40 



40(39) Narrowed portion of seventh tergum distinctly longer than terminal 



expanded part persimilis 



Narrowed portion of seventh tergum distinctly shorter than terminal 



expanded part if narrowed portion is present 41 



41(40) Head and thorax conspicuously granulate 42 



Head and thorax not granulate or very sparsely so 45 



