444 PROCEEDINGS OF THE NATIONIAL MTJSEUM vol. 94 



SCHIZEMBLA. CALLANI, new species 



FiQUKES 73-75 



Male.— Color (on slide) : Head and basal antennal segments dark 

 chocolate brown ; pterothorax, legs, and terminalia medium chocolate 

 brown, abdomen and wings lighter; prothorax and forecoxae pale 

 straw yellow; mandibles golden yellow. Length 7 mm.; forewing 

 length 4.5 mm., breadth 1.2 mm. 



Head (fig. 73) larger than terminalia; sides behind eyes gradually 

 rounded and convergent, short; caudal margin broad, evenly arcuate. 

 Eyes very large, inflated; facets prominent; interspace equal to an 

 e5'e width. 



Wings relatively large, broad. Radius narrow, converging toward 

 costa and nearly merging with it before wing apex. Three cross 

 veins present between R and R0+3 in forewing and two in hindwing — 

 absent elsewhere except one between Cuib and A. R2+3 strongly repre- 

 sented to terminus. R4+5 well represented at extreme base only, its 

 terminal portion, as well as all other veins behind it (except Cuib), 

 each represented only by a row of macrotrichiae. Color uniform; 

 hyaline stripes very narrow and sharply defined. 



Terminalia (figs. 74, 75) small. Tenth tergite with median cleft 

 incomplete apically, processes fused; cleft forked, the left fork ex- 

 tending from middle at a 45° angle to basal margin, narrow ; the right 

 fork extending basad at same angle, but terminated well before basal 

 margin; these clefts isolate a broad, median, basal area, truncate 

 apically with the adjacent membrane granulate. Processes narrowly 

 fused on inner side apically; with small lateral apical projections. 

 Ninth sternite (H) quadrate, basal margin ragged; produced apically 

 as a symmetrical, broadly rounded process (HP). Two rudimentary 

 sclerites fused to either side of H at base of HP may represent the left 

 and right paraprocts. A free, triangular sclerite in membrane be- 

 tween HP and base of left cercus may represent the composite left 

 cercus-basipodite and left paraproct (LCB + LPPT). Right cercus- 

 basipodite (RGB) represented by an isolated, small, circular, ventral 

 sclerite. Basal segment of left cercus (LCi) stout, slightly clavate 

 on inner side apically, this nodule bearing a fcAv scattered echinula- 

 tions ; terminal segment of left cercus large. Basal segment of right 

 cercus cylindrical, darkly pigmented on inner side; terminal segment 

 narrower and smaller than that of left cercus. 



Female. — Unknown. 



Holoti/pe. — Male, on slide, deposited in the British Museum of 

 Natural Plistory. 



Type data. — Collected at light, St. Augustine, Trinidad, June 4, 

 1939 (E. McC. Callan). 



