A565 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
converging, more so just distad of eyes, rounded to apex distally; frons 
in profile slightly concave in middle, median and lateral carinae pres- 
ent, the latter incurved basally to meet at an acute angle; rostrum not 
reaching nearly to middle of porrect postfemora. Legs with protibiae 
rectangular, 25 times longer than width of their widest side at middle. 
Tegmina with stigma 4- to 7-celled. 
Anal segment of female in side view with dorsal margin gradually 
and sinuately raised, apex obliquely truncate, lower margin shallowly 
curved, total length equal to width across base. First valvulae of 
ovipositor with four small and distally two large teeth on dorsal 
margin; lateral styles approximately ovoid, dorsal border shallowly 
curved, ventral border more strongly so, with a very short broad lobe 
on distal margin. 
Described from six females, one collected by M. D. French-Mullen 
(Feb. 14, 1937), the remainder by the writer (July—Dec. 1942, on 
various dates) resting on bushes. A Trinidadian specimen was com- 
pared by Mr. China with the type. 
HYALODICTYON FALLAX, new species 
PLATE 11, FicurEs 239-242 
Female: Length, 12.0 mm.; tegmen, 12.5 mm. 
Vertex rather elongate, produced before the eyes for twice their 
length, shallowly excavate at base, median carina present, lateral 
margins straight, gradually converging apically, roundly incurved at 
apex; frons in profile flat, not concave, lateral margins parallel, lateral 
carinae very roundly arched, not at all angulate, at their basal junc- 
tion; rostrum reaching posteriorly well beyond posterior coxae, base 
of last joint level with postcoxae, tip reaching almost to middle of por- 
rect postfemora. Legs long and slender, protibiae rectangular in sec- 
tion, fully 32 times longer than wide across middle of widest side, or 
even more. Tegmina without cross veins on the corium, Sc+ R forking 
near stigma, stigma with three cells, M forking about middle of tegmen, 
Cu, forking markedly basad of M fork. } 
Green, apex of rostrum piceous; tegmina hyaline, veins green; wings 
vitreous, veins pale. 
Anal segment short, in dorsal view as broad as long, excluding telson, 
dorsal margin abruptly raised from base, passing straight to anal 
foramen, lower margin curved. Lateral styles of ovipositor broad, 
subtriangular, tapering distally, upper margin almost straight, lower 
margin curved. First valvulae with five rather slender spines on 
dorsal margin, passing into grooves at their bases, and two larger 
upturned spines apically. 
Described from two females, one collected by F. W. Urich, Trinidad, — 
B. W. 1. (1921), the other by the writer in St. John’s Valley, Trinidad, 
