336 PROCEEDINGS OF THE NATIONAL MUSEUM vol. o» 



Described from two specimens (one type) collected June 30 by Fred- 

 erick Knab. 



This species belongs to Horn's Truncatae group. It differs from all 

 the described American species of this group in being uniformly 

 coppery brown. 



ACMAEODERA NEONEGLECTA, new species 



Narrowly elongated, subcylindrical, strongly convex above, broadly 

 rounded in front, strongly narrowed behind middle, moderately shin- 

 ing, dark brown, with a distinct cupreous tinge, especially on prono- 

 tum, head, and underside of body, and each elytron ornamented with 

 yellow as follows: The lateral margin from near humeral angle to 

 apex, an irregular, more or less square spot behind humerus, an 

 irregular, narrow vitta on disk extending from middle to apical fifth 

 and connected to lateral margin at middle and apical fifth, and with 

 two small, round spots arranged longitudinally behind middle near 

 sutural margin. 



Head slightly convex in front, not distinctly depressed behind 

 clypeus, coarsely, shallowly, confluently ocellate-punctate, sparsely 

 clothed with moderately long, rather broad, semierect, white hairs; 

 clypeus broadly, shallowly, angularly emarginate in front. Antenna 

 extending to middle of pronotum ; segment 1 elongate, as long as fol- 

 lowing two segments united; segment 2 globose; segments 3 and 4 

 narrower, distinctly longer than wide, and subequal in length to each 

 other; segments 5-10 not very compact, more or less triangular, 

 slightly wider than long; segment 11 round. 



Pronotum twice as wide as long, slightly narrower at apex than at 

 base, widest at middle; sides broadly rounded, with the margins 

 narrow and visible from above; disk strongly, uniformly convex, 

 without distinct depressions, but with three small indistinct foveae 

 along base, one median and one on each side toward posterior angle ; 

 surface coarsely, deeply, densely punctate at middle, confluently alveo- 

 late-punctate toward sides, and rather densely clothed with moderately 

 long, rather broad, erect, white hairs. 



Elytra strongly convex, deeply, transversely depressed along base 

 at middle, at base subequal in width to pronotum at base ; sides nearly 

 parallel along basal halves, arcuately converging posteriorly to the 

 tips, which are conjointly broadly rounded; lateral margins rather 

 coarsely serrate toward apices. Surface rather deeply striately punc- 

 tate, the punctures in the striae oblong, separated from one another 

 by about one-half their own widths; interstrial spaces on sutural 

 regions flat, and two to three times as wide as the strial punctures, 

 wider and slightly convex toward sides, sparsely, finely regularly 

 punctate, with a short, rather broad, erect, white, hair arising from 

 each puncture. 



