258 AMERICAN COLEOPTERA. 



Indian River, Florida. One male in coll. Dietz. 



This species enters Dr. Horn's group XII {crenulaia), and has to 

 be placed with rubiginosa and parvidens. From both it differs by 

 the much more densely punctate clypeus and front, the much finer 

 punctuation of thorax, which latter is also narrower, the more 

 coarsely punctate elytra, the form of pygidium, aqd the entirely 

 different genitalia. The claspers are symmetrical, immobile, not modi- 

 fied. Viewing them from the front, they are small, elongate, nar- 

 rowing to apex from about middle, the apex emarginate, with the 

 angles slightly divergent, the opening is elongate-oval froni the base 

 to the opening, the surface is shallowly canaliculate along the me- 

 dian line. Prof. Smith's figure of qiiercus on Plate Ix, fig. 78a, in 

 Proc. U. S. Nat. Mus., vol. xi, resemble those of pygidialis some- 

 what, but narrowing in the latter species from about middle, the 

 side view is similar in shape to fig. 78c, but sitnple, not modified at 

 at all, of even outline. 



Ijaclinosternsi latidens n. sp. — Oblong, broader beliind, pale castane- 

 ous, sliiuing. Clypeus short, transverse, margin moderately reflesed, apex emar- 

 ginate; surface and front very coarsely punctate, head on the occiput smooth, 

 clypeus and front with moderate long, erect hairs. Thorax broadly rounded and 

 widest at about middle, strongly narrowing from this point to apex and base, 

 side margin slightly uneven ; surface coarsely, irregularly and sparsely punctate, 

 with a few smaller punctures intermixed, sides, apical and basal margins with a 

 few sparse, long, erect hairs. Elytra slightly rugose, sparsely and more finely 

 punctate than the prothorax, sutural costse distinct, discal and submarginal coslae 

 obliterated, from each of the sparsely placed punctures arises in well preserved 

 examples, a short stiff hair. Pygidium convex, moderately punctate and clothed 

 with short stiff hairs. Metasternum with long yellowish hairs. Abdomen 

 densely and more finely punctate at sides than at middle. Length 15 mn). 



Male. — Antenuce ten-jointed, club as long as joints 2-7 together. Abdomen 

 longitudinally impressed at middle, the impression on the penultimate segment 

 finer, and the punctuation of this and the last segment coarser. Both spurs of 

 hind tibiae free, long, of nearly equal size and slightly curved. Claws strongly 

 curved, with a very broad median tooth. 



Arizona. 



Female. — Antennse shorter than in the male. Ab.domen feebly impressed but 

 more coarsely punctate in the middle than in the male. Pygidium gibbous at 

 apex. Claws curved, median tooth broader than the apical part of the claw, but 

 not quite as broad as in the male. 



Huachuca Mts., Arizona. 



By the structure of the claws and the apical gibbosity of the py- 

 gidium of the female this species departs from all the North Ameri- 



