Coleoi:)terological Notices, VI. 655 



XATHICrS u. gen. 



The geneml aspect of the only species at present assignable to 

 this genus recalls some of the members of Vacnsus in sculpture 

 and coloration. The body is sparsely clothed with short hairs, 

 the head truncate at base, with rather large convex and coarsely 

 faceted e3'es, the terminal joint of the maxillary palpi small and 

 securiform and the antenna moderately elongate. Prothorax 

 broad, evenly and moderately convex, with the collar extremelj' 

 short, and the basal margin narrowed strongly toward the middle 

 in a peculiar manner, the lateral constriction much feebler than 

 in Baulius or Malporus, nearer the base and rounded. Scutellum 

 small, triangular, finely and densely sculptured, densely pubes- 

 cent. Elytra with well exposed humeri, the short sparse vesti- 

 ture intermingled only toward apex with a few very short erect 

 and remotely scattered sette. Sexual characters not' observed 

 and apparently very feeble. 



1. ]V. virgiiiiae n. sp. — Moderately stout and convex, polished, pale rufo- 

 testaceous, the legs pale flavate; elytra with the basal margin, a broad fascia at 

 or just before the middle and another at apex, the latter slightly prominent 

 anteriorly at the suture, black ; vestiture short, sparse, subdecumbent, rather 

 coarse on the elytra. Head a little wider than long, transversely truncate but 

 not distinctly impressed at base, the angles rounded to the eyes, the tempora 

 much less prominent; eyes large, very convex, prominent and at about one- 

 half their length from the base; surface moderately convex, rather finely but 

 strongly and somewhat sparsely punctate, with a large subimpunctate median 

 area ; antennae moderately slender, barely as long as the head and prothorax, 

 distinctly incrassate toward apex, the third joint longer than the fourth, 

 tenth trapezoidal, scarcely as long as wide, the eleventh short, conoidal. Pro- 

 thorax distinctly narrower than the head, as long as wide, the anterior lobe 

 nearly three-fourths of the entire length, wider than long, with the sides 

 evenly and circularly arcuate; basal lobe expanded at base, the latter broadly 

 arcuate and four-fifths as wide as the disk ; apical collar very short, broad, 

 conical, separated from the lobe by an extremelj^ fine impressed line; disk 

 feebly and broadly convex, rather coarsely, very closely punctate, the ijuuc- 

 tures circular and in the form of a shallow basin, the hairs attached at the an- 

 terior wall. Elijtrn large, four-fifths longer than wide, a little more than 

 twice as wide as the prothorax, gradually narrowed and obtusely ogival in 

 apical third, completely concealing the pygidium, and each slightly rounded 

 at the extreme apex; sides parallel and broadly arcuate; humeri broadly and 

 oblicjuely exposed at base; disk with scarcely a trace of basal impression or 

 omo])]ates, coarsely deeply and not densely piinctate, the punctures becoming 

 much smaller toward apex. Abdomen distinctly, sparsely and unevenly punc- 



