124 Trans. Acad. Sci. of St. Louis. 



much narrower than the preceding, rounded at tip. Length 7.5 mm.; 

 width 1.18 mm. New York to Iowa and Texas (Galveston). 



longinscnia Grav. 



6 — Form rather stout, polished, black, the rufous elytra with a black basal 



cloud, the legs and antennae pale; head quadrate, as long as wide, the 

 sides straight; angles moderately rounded, the neck very wide as usual, 

 the punctures coarse, very sparse; antennae long and rather stout, 

 much longer than the head and prothorax, feebly incrassate distally, the 

 medial joints rather more thau twice as long as wide and longer than 

 the subapical; prothorax nearly as in longiuscula, a little longer than 

 wide, the sides more converging from apex to base, just visibly wider 

 than the head, the punctures somewhat coarser and still sparser; elytra 

 elongate, parallel, a fourth wider and longer than the prothorax, the 

 punctures moderate, impressed, arranged in regular, scarcely impressed 

 series, except near apex, where they are finer and confused; abdomen 

 but little narrower than the elytra, finely, closely punctulate. Male 

 with the fifth and sixth ventra's wholly unmodified on the surface, the 

 former with a small shallow and gradually formed median sinus at 

 apex, the emargiuation in the form of a feeble cusp with broadly 

 rounded point, the sixth with a very large subcircularly rounded eraar- 

 ginatiou, occupying the entire apex and fully twice as wide as deep. 



Length 7.0 mm.; width 1.27 mm. Texas soror n. sp. 



Form more slender, the elytra bright red, without a distinct basal cloud, 

 the legs pale, the antennae slightly infuscate; head as in soroi' but 

 smaller, the antennae rather thick, scarcely as long as the head and pro- 

 thorax, barely at all incrassate distally, the medial joints about two- 

 thirds longer than wide and longer than the subapical; prothorax 

 rather distinctly elongate, equal in width to the head, slightly narrowed 

 posteriorly, the sides nearly straight; basal angles more broadly 

 rounded than the apical as usual, the, punctures not coarse but deep, 

 distinct, irregularly and sparsely distributed, more closely aggregated 

 along the median smooth line; elytra parallel, but little longer than 

 wide, very slightly longer than the prothorax and about a fifth wider, 

 the punctures small and very feebly impressed, arranged serially, 

 except toward apex, where they are broadly confused and still smaller; 

 abdomen much narrower than the elytra, finely and not very closely 

 punctate. Male with the fifth ventral broadly, subconlcally impressed 

 in apical two-thirds, the impression clothed with short coarse black hairs 

 extending obliquely outward from the glabrous median line, the apical 

 margin sinuate across the end of the impression, the sinus as wide as 

 the latter, evenly, circularly rounded and very shallow; sixth with a 

 very deep and acutely ogival incisure, twice as deep as wide, the 

 notch abruptly formed, with its opening two-fifths as wide as the apex, 

 the surface not modified. Length 7.8 mm.; width 1.12 mm. Texas 

 (Austin and Waco) • fallaciosa n. sp. (Fvl. MS.) 



7 — Abdomen not rufous at lip. Body moderately large and unusually 



stout, the head and abdumeu black, the remainder, including the legs, 

 pale and rufous; antennae ferruginous; head moderate, subquadrate, 

 the angles rounded as usual, not very coarsely, rather feebly and very 

 sparsely punctate; antennae well developed, longer than the head and 



