462 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95: 
ing somewhat mesad, and overlain by a thin membranous lamella, 
dorsally a pair of penial spines emerging subapically and abruptly 
recurved anteriorly. Genital styles subovate, dorsally excavated near 
base, with a tooth directed outward and downward and a second tooth 
directed anteriorly in basal half of upper margin. 
Ovipositor with first valvulae rather broad, with four large curved 
teeth on dorsal margin in distal half, followed posteriorly by a row 
of four much smaller teeth; second valvulae in side view broad, with 
upper and lower margins convex, the former less so, a marked cleft 
at apex; lateral styles with dorsal margin straight or nearly so, the 
lower margin deeply curved, a narrow point at apex, a thin horizontal 
lamella lying mesad and attached at base. 
Described from one male specimen taken at Yarikita, Northwest 
District, British Guiana (March 1931), and one female taken at Bom 
Jardim, Lower Amazon (Sept. 16, 1933), by Dr. J. G. Myers. The 
‘male specimen and drawings of the valvulae of the ovipositor were 
found by W. E. China to agree very well with Walker’s type of 7. 
muliebris, which is a female. Melichar synonymizes 7. muliebris — 
under 7’. sutwralis Germar, but his description of suturalis does not 
agree with mulzebris, whereas his description of 7’. vitrata (Fabricius) 
does so reasonably well. It is possible that there has been some con- 
fusion of suturalis and vitrata, and the writer believes that these 
names along with their synonymies should be transposed in Melichar’s 
monograph. 
TAOSA AMAZONICA, new species 
PLATE 12, Figures 284-291 
Female: Length, 9.38 mm.; tegmen, 12.0 mm. 
Vertex wider across base than long (1.6 to 1), scarcely projecting 
before eyes, lateral margins slightly converging, anterior margin rather 
strongly curved, basal margin shallowly excavated, median carina 
feebly present on basal half, triangular facet anterolaterally distinct, 
base of frons visible from above; frons with carinae distinct, though 
feeble at base; hind tibiae with four spines; stigma with three cells. 
Green; frons paler at base, lateral carinae of frons broadly over- 
Jain with a band of reddish brown in basal two-thirds, rostrum piceous 
at apex, vertex with a dark linear spot on each side of median carina, 
pronotum with a spot behind each eye, mesonotum with a brown spot 
anteriorly at apex of median carina, a spot immediately outside each 
lateral carina at apex, and a spot inside at base, a few dark suffusions 
laterad, pro- and mesotibiae and tarsi slightly infuscate; tegmina 
vitreous, veins green, fuscous between subapical line and margin, 
stigma green; wings vitreous, veins dark. 
Anal segment subequal in length to hind tarsus, narrow, in side 
view parallel-sided, obliquely truncate at apex. Lateral styles nar- 
