276 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 87 



evenly attenuate, truncate at apex; last ventral segment twice as 

 long as penultimate one. 



Type locality. — Barro Colorado Island, Canal Zone, Panama. 



ry;?e.— Female, U.S.N.M. No. 52923, collected April 26, 1926, by 

 C. T. Greene. 



TOMOXIA BINOTATA, new species 

 FiGUEE 17, C 



This species is most closely allied to innotata Pic (1924, p. 23) and 

 may be separated from the latter member of the genus by the bino- 

 tate elytra, the peculiar character of the antennae, the broad distal 

 segment of the maxillary palpi, and the much larger size. 



Length : 7 mm. ; including anal style, 8.5 mm. Form short, mod- 

 erately robust, subcuneate, sides narrowing posteriorly, broadest near 

 base of prothorax. Derm fuscopiceous, femora of anterior and inter- 

 mediate legs, mesal half of distal segment of maxillary palpi, and 

 antennae, fuscocastaneous. Body densely covered with fine recum- 

 bent brownish pubescence, which assumes a violaceous tinge in cer- 

 tain lights; a pair of postmedian, elytral spots as far from suture as 

 width of spot and almost toucliing lateral margins, and basal mar- 

 gins of ventral abdominal segments, white. 



x\ntennae 1.8 mm. long, reaching middle of lateral pronotal mar- 

 gin ; segment 3 slightly longer than 4 ; 5-10 each succeedingly shorter 

 than preceding, 10 two-thirds as long as 3 ; 11 as long as 4, broadest 

 subapically, subtriangular in profile, rounded at corners. Distal seg- 

 ment of maxillary palpi enlarged, form of an isosceles triangle, mesal 

 edge straight, outer edge curved, corners rounded. Pronotum 

 broader than long (3 by 2 mm.), sides rounded, base arcuate, mid- 

 basal lobe short, truncate. Scutellum slightly broader than long, 

 sides angular, apex truncate, not emarginate, apical angles rounded. 

 Elytra two-thirds longer than broad (4 by 2.3 mm.), sides attenuate 

 posteriorly, apices broadly, individually rounded. Intermediate tarsi 

 longer than their tibiae ; penultimate segment of anterior and inter- 

 mediate tarsi simple. Tarsal claws with three distinct, broad teeth, 

 distal one longest, and a large, blunt, premedian tooth (fig. 17, c). 

 "Median claws" twice as thick at base as medially, apical three-fourths 

 of mesal margin and entire lateral margin broadly rounded. Outer 

 spur of posterior tibiae one-half longer than inner one, densely cov- 

 ered with coarse pubescence, broadest subapically, thence rounded to 

 apex. Anal style two and one-half times as long as apical ventral 

 segment (1.3 by 0.5 mm.), stout, evenly attenuate, truncate at apex. 



Type locality. — Barro Colorado Island, Canal Zone, Panama. 

 Type.—K unique male, U.S.N.M. No. 62925, collected July 17, 

 1923, by R. C. Shannon. 



