GHILIANELLA ASSASSIN BUGS — MALDONADO-CAPRILES 435 



Seventh sternum longer medianly than sixth, longer medianly than on 

 lateral margins, very slightly produced medianly, carinate on apical 

 half (fig. 52). 



Overall body length 24.5 mm. 



Other females with similar elevation on the sixth tergum are bulbi- 

 fera, cuneata, pendula, bethei, and aracataca, but otherwise these species 

 are very different from panamana. 



Types: Holotype, female, Barro Colorado, Panama Canal Zone, 

 July 10, 1924, N. Banks collector, MCZ 29466. Paratype, same 

 collection data, author's collection. 



Ghilianella rhabdita, new species 



Figures 15, 29 



Male: Head, antenna, and thorax brownish. Forelegs yellowish 

 brown, femur with two incomplete yellowish annuli. Middle and hind 

 femora brownish, darker toward apex, with two preapical yellowish 

 rings. Middle and hind tibiae brownish, with postbasal yellowish 

 ring. Abdomen brownish, variegated with yellowish. 



Inconspicuously covered with short, scarce, appressed pilosity. 



Head granulose; eyes small. Interantennal spine long, decurved. 



Thoracic segments granulate; lengths : 2.5, 1 .6, 0.7 mm. Armature of 

 forefemur with inner row consisting of long fine setae arising from 

 wartlike bases. Claws of foretarsi two, the inner very short, and 

 closely appressed to base of outer. First spine of forefemur at one and 

 one-half times its length from tip of trochanter. Basal half of fore- 

 femur gradually thickened to first spine. 



Abdomen on dorsal aspect nearly parallel sided to middle of seventh 

 segment, thence narrower to apex. Terga with apical angles not 

 produced or elevated and hind margins without median warts. 

 Seventh tergum longer than sixth; the narrowed portion beginning 

 before middle, thence parallel sided to before apex; apex roundly 

 produced, apical half transversely corrugate (fig. 29). Hind margins 

 of second to fifth sterna straight; of sixth medianly concave and 

 slightly convex on sides, inside the lateral convexity with a circular 

 elevation; of seventh straight; of eighth slightly acutely produced. 

 Sixth and seventh sterna of same median length. Seventh sternum 

 nearly half as long on lateral margins as medianly. Eighth sternum 

 visible on its entire width, medianly as long as seventh laterally. 

 Spiracle pedunculate. Hypopygium opening upwards; its upper 

 lateral margin stepped, the claspers fitting in the concavity. Clasp- 

 ers on lateral aspect oblong, apex inwardly curved, pointed apically 

 (fig. 15). 



Overall body length 14.0 mm. 



