400 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



the third wider and a little shorter; fourth wide, a little shorter than 

 the third. Pronotum very short and wide, sablobate at the lateral angles. 

 Ostiolar canal starting at about the end of the tirst third of the epister- 

 num and running through the second third, broad at base, with the 

 ostiole at that point widely open and grooved, tapering rapidly, and 

 terminating in a slender carinate line. Scutellum broad and short, the 

 tip wide and bluntly rounded. Posterior margin of the coriam long, 

 obliquely rounded ; membrane with seven or eight longitudinal nervures. 



L. humeralis, new sp. 



Pale testaceous, or clay-yellow, tinged with orange ; form broad-oval, 

 with very prominent lateral angles. Head long and narrow, lamellate, 

 broadly rounded, deeply, cleft in front, slenderly margined with black, 

 remotely punctate with red or brown, the punctures a little confluent on 

 the vertex, but leaving a nude line on the tylus and an oval spot between 

 the eye and ocellus, the spot bounded with a black line ; tylus very much 

 shorter than the lateral lobes, very remotely punctate, and with a short 

 line of punctures each side, its apex acutely tapering at tip. Under side 

 of head with a short black line in front of each eye ; the tooth on the base 

 of the antennee stout, rufous, black at base on the upper side. Anten- 

 nae rufous ; the basal joint stout, fusiform, a little longer than the second ; 

 the second very short; the third longer than the two preceding together; 

 fourth and fifth subequal, each a little shorter than the third. Rostrum 

 rufous, reaching between the middle coxfe, piceous at tip. Pronotum 

 very short, very wide, testaceous, x)unctate with red and black, the punct- 

 ures confluent in large spots near the outer sides and a little confluent 

 in transverse rows on the disk ; anteriorly each side of the middle with 

 a round black spot, and the posterior lobe clouded with brown ; humeral 

 lobes produced, triangularly rounded, tinged with rufous, the edge pos- 

 teriorly black ; lateral margins deeply sinuated anteriorly, pale, with a 

 very small tooth at the anterior angle, and before it some faint traces of 

 serrations; humeri tubercular, the latero-posterior margins broadly sin- 

 uated; pleural pieces generally very coarsely punctate. Legs pale 

 yellow, the tibife and tarsi tinged with ochreous. Scutellum testaceous, 

 a little coarsely punctate with pale brown, the punctures placed in un- 

 even, somewhat transverse rows ; next the margin each side posteriorly 

 with a blackish cloud, and sometimes a fainter one next the tip; the sides 

 feebly sinuated, the apex wide and broadly rounded. Corium wide, 

 coarsely, remotely punctate with black, with a few bald spots on the 

 disk and on the costal area, the base and inner angle tinged with red; 

 costal margin broadly bowed from a little way behind the base to the 

 tip; embolium rufous, unevenly punctate; membrane a little bronzed. 

 Tergum rufous, the connexivum orange, with a small black spot at the 

 outer and posterior angle of each segment; venter pale yellowish, re- 

 motely punctate ; anal segment of the female with a short black line 

 each side on the posterior margin. 



