Coleojitefological Notices, III. 157 



but distinct. Eli/tra between four and five times as long as the protliorax, 

 and, at the middle, about one-half wider, strongly dehiscent in ai)ical third, 

 ogival at apex ; sides parallel, feebly arcuate, the humeri strongly rounded to 

 the base of the prothorax and somewhat widely exposed ; disk with series of 

 rather small, close-set punctures, the rows almost completely unimpressed, 

 except feebly near the suture ; intervals finely, sparsely, confusedly punc- 

 tate. Abdomen minutely, extremely sparsely punctate. Legs rather short and 

 moderately slender, the tarsi all much shorter than the tibi;e, the basal joint 

 of the posterior a little sliorter than the remainder. Length 9.8 mm. ; width 

 3.7 ram. 



Florida. Cab. LeConte. 



The description is taken from the unique female type, and I Lave 

 seen no other specimen which can be placed with it. 



The lateral pronjinence of the basal angles of the prothorax is a 

 character which is probably quite variable in degree, and has been 

 noticed by Champion in one of the Central American species of 

 Lobopoda. 



The type is the largest specimen of the genus which I have seen. 

 The genital armature is narrowly and rather deeply sinuate in the 

 middle at apex, the sinus and apices being about equal in curvature. 

 The fifth ventral segment has, near the apex, a deep transversely 

 oval, abruptly limited excavation. 



A. IbriiniieilS n. sp. — Brown, polished througlunat, strongly convex, 

 sparsely pubescent. Protliorax from one-third (male) to one-half (female) 

 wider than long, the sides ]tarallel and straight in basal two-thirds, then 

 rounded to the apex ; disk evenly convex, finely but deeply, rather sjjarsely 

 punctate, without an impanctate median line except near the base ; basal 

 fovese almost completely obsolete. 



Male. — Elytra four times as long as the i^rothorax, and, in the middle, about 

 one-third wider, tlie humeri very narrowly exposed at base ; eyes separated 

 by their own width ; antennje two-thirds as long as the body, the joints rather 

 strongly obconical, a little more than twice as long as wide, the third one-half 

 longer than wide and about one-half as long as the fourth ; anterior tarsi 

 quite distinctly dilated, subequal in length to the tibia?, the basal joint nearly 

 as long as the next two combined ; fifth ventral segment short and broad, not 

 longer than the fourth, very broadly, evenly rounded at apex, the surface not 

 at all impressed ; genital armature finely punctate, broadly truncate at apex, 

 the truncation broadly, very feebly, evenly sinuate throughout, the angles 

 obtuse and distinct but slightly rounded ; intromiitent organ long and very 

 slender. 



Female. — Elytra distinctly more than four times as long as the prothorax, 

 and, behind the middle, nearly one-half wider, the humeri very narrowly 

 exposed at base ; eyes separated by slightly more than their own width ; 

 antennae rather more than one-half as long as the body, slender and filiform, 



