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PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. XXVIII. 



and pronoturn. Thorax inesially tsoniewhat compre.ssed, di.sk clepsy- 

 dral in shape and iiiarkinos, tho marking light on dark ])ackground; 

 lateral lobes higher tiian broad, the lower margin descending, causing 

 posterioventral angles to be acute, though not very sharply so; color 

 fuscous on disk, margined al)ove and l)ehind with ashy and a more or 

 less distinct square^ spot of the same color on the anterioventral angle 

 and a slight semicircular spot on the center of the disk; anterior riiar- 

 gin of the disk truncate, ])Osterior rectangular, the sides straight; 

 median carina distinct, equally elevated throughout, cut a little in 

 front of the middle 1)V the principal suhais and in front of that point ] 

 cut very inconspicuously by the anterior sulcus: lateral carina^ slight 

 and the lateral lol)es furnished a])Out the middle of the upper half with 

 a short longitudinal carina, not reaching the antei'ior margin of the ■ 

 pronotum and terminating at the anterior sulcus; interspaces between 

 the mesosternal and metasternal lobes al)out twice, male, or more than 



twice, female, :is broad as long. .Elytra long 

 and slender, nearly seven times as long as 

 broad; color light with a large triangular 

 fuscous spot at the humeral angle, a quadrate 

 spot about the same size located its own 

 width from the triangular spot on the costal 

 margin and three or four less conspicuous ! 

 rounded spots beyond on the costal area; the 

 tip of the elytra is membraneous with the 

 veins infuscated. the anal area pallid, basaliy I 

 infuscated in male and wholly ol)scured in 

 the female; intercalary vein well developed. 

 ^Ving long and pointed, about twice as long 

 as l)road, transparent with the basal fifth 

 washed with citrus, a bluish costal stigma 

 beyond the middle, no trace of a transverse fuscous band. Legs 

 weak and very slender, the anterior and intermediate femora scarcely 

 more than one-half as broad as the interocular space, color light gray 

 with darker mottlings; posterior femora slender, pallid with the inner 

 face infuscated l)asally and the outer face with a short median black 

 streak and the dorsal surface marked with three oblique black spots, 

 conspicuous but small; hind tibia^ light yellowish, the spines black 

 tipped, seven to ten or eleven in outer series. Abdomen slender, pale 

 yellowish, more or less infuscated above and, in female, on the sides. 

 Length of body, male IT nun., female '2o nun.; antenna?, male 9 

 mm., female 9 nun.; pronotum, male 3.5 mm., female 4 nmi.; elytra, 

 male IT mm., female 23 mm.; posterior femora, male 10.5 mm., 

 female 13 mm.; greatest width, elytra, male 2.5 nun., female 3.5 

 mm.; wing, male T.5 mm., female 10 mm. 

 Ti/j)e.— Cat. No. 8259, U.S.N.M. 



I, — Mest()BRE(_;m.\ (;ra- 



ILIPES, TOP VIF.W. 



