SPONGILLA-FLIES — PARFIN AND GURNEY 497 



ixpanding lateroventrally with anterior and posterior margins convex 

 n part, and then shortening again ventrally; tenth tergite with 

 linterior border of each half more or less sinuate, with dark sinuous 

 5treak near anterior margin, posterior border straight, with coarse 

 :oothlike papillae bearing long setae, small hyaline anteroventral 

 Sonvex lobe with a small anterior light brown fingerlike projection; 

 linth sternite with a pair of median, bluntly rounded, dark, laterally 

 curved processes which have rounded papillae in rows bearing long 

 ;etae ventrall}' and a row of setae near dorsal margin of processes 

 extending distally from inner surface; two halves of tenth sternite 

 lark brown, triangle shaped ventrally, with long dentate processes 

 rearing long setae distally; parameres with long flap projecting antero- 

 iorsally from median plate, anterior margin rounded, inner arms 

 alackish, small elongate setigerous tubercles medial to hooks (single). 



Female (allotype) : Similar to male except for the following: Vertex 

 with yellowish brown extending between the antennal bases; face with 

 a, little yellowish brown, basal two antennal segments brown dorsally 

 and yellow ventrally, lighter than the brownish black ones following 

 (left antenna of 58 segments); pronotum with median dorsal streak 

 broad, narrowing before posterior margin, mesonotum also with 

 aarrow dark streak; abdomen with transverse blackish streaks dor- 

 sally; forewing length 4.3 mm., width 1.7 mm., hindwing length 3.7 

 mm., width 1.6 mm., 3d r at fork of R2+3 in left wing, Cul with four 

 branches to margin in right wing and three in left. 



Female genitalia (fig. 22, e) : Eighth tergite shorter, rounded 

 dorsaUy, with anterior margin almost straight and posterior border 

 concave in part; ninth tergite with each lateroventral half large, 

 elongate, anterior width almost one-half of and posterior width about 

 one-fourth of length, dorsal margin sloping gradually postero ventrally, 

 ventral margin curved; tenth tergite shorter mediodorsall3^ 



Holotype: a male (pinned) from Columbus, Tex. (E. A. Schwarz) 

 (Collection C. V. Riley); USNM 62262. 



The date of collection is uncertain, but was probably in 1879 since 

 Schwarz was in Columbus then. (See Proc. Ent. Soc. Washington, 

 vol. 4, pp. 1-3, 1896.) 



The holotype has the second left leg, the tarsi of the third left leg, 

 and the antennae beyond the basal joints missing; the left forewing 

 and hindwing are torn basally, and the left forewing is also torn near 

 the apical margin, but the venation is distinct. The abdomen is 

 preserved in glycerin. 



Allotype: A female (in alcohol) from Corpus Christi State Park, 

 Tex., 35 miles west of Corpus Christi, Oct. 6, 1951, at light (A. B. 

 Gurney) ; USNM 62262. 



' The allotj^pe is in two pieces, the anterior piece broken at the 

 mesothorax and with the tip of the right antenna broken (of 36 seg- 



