PROC. ENT. SOC. WASH., VOL. 23, NO. 2, FEB., 1921 33 



perceptible angulation; antennae of female slightly compressed, yellowish 

 brown in color and about twice as long as the pronotum, in the male absent from 

 the single specimen seen. Pronotum yellow greenish brown on the sides and a 

 little darker above, the sites of the lateral carinae marked by a broad black 

 stripe continuous with the postocular stripes of the head; pronotal disk truncate 

 anteriorly, roundly angulate posteriorly, rounding into the moderately elongate 

 lateral lobes without forming lateral carinae except very bluntly so on themeta- 

 zona; median carinae very slight, especially in the female, a little more distinct 

 in the male; prosternal spine conical, apically broadly rounded; mesosternal inter- 

 space very slightly longer than broad in the male, a little broader than long in 

 the female. Legs moderately slender, the hind femora moderately swollen 

 basally; the color of the legs in general is greenish, the outer face of the hind 

 femora very noticeably so, the tibiae with a bluish cast, those of the posterior 

 legs being decidedly blue; the posterior femora apically and corresponding 

 tibiae basally piceous, the femora marked dorsally by a broad medial and pre- 

 apical band, sometimes somewhat obscured but usually very noticeable, even 

 conspicuous; spines of hind tibiae black in apical half, yellowish basally, ten to 

 twelve in the outer series, the basal two or three minute. Organs of flight fully 

 developed, but barely or scarcely attaining to the tips of the posterior femora; 

 elytra brown, the costal margin basally infuscated, intercallary area narrow and 

 with a distinct intercallary vein; wings moderately and uniformly fuliginous, 

 the veins black. Abdomen greenish yellow, with a few black markings apically; 

 supraanal plate of male triangular, black on the greater part of the median 

 portion, the tip and base only light and with a narrow median longitudinal 

 stripe, broadly sulcate medially in the basal third and narrowly in the apical 

 third, and more broadly so for the entire length on each side of the medial fur- 

 rows; on each side of the narrow apical median sulcation is a pair of raised longi- 

 tudinal carinae, short and black; subgenital plate with the upper margin thin and 

 forming a brief, acute, depressed and posteriorly directed point, the apical half 

 of this plate is mottled with blackish; fercula mere rounded lobes shorter than 

 the last dorsal abdominal segment from which they arise, but rather conspicuous 

 from their color, which is black, in decided contrast to the yellowish color of the 

 surface beneath them; cerci of male simple, apically clavate, shaped as shown in 

 the figure (Fig. 2), the whole cercus extending slightly beyond the tip of the 

 supraanal plate and is black on the apically expanded portion, except along the 

 lower margin; just beyond the tip of the supraanal plate; between it and the tip 

 of the subgenital plate, the integument of the abdomen forms an erect blunt 

 tubercle; cerci of female about twice as long as basally broad, conical, usually 

 tapering more rapidly in the basal half, apically narrowly rounded; valves of 

 ovipositor well exerted, the margins without serrations, or with very rounded 



FIG. 2 Cercus of ('.aitinti.ps oiridifemoratus . 



