376 PROCEEDINGS OF THE ACADEMY OF 



PROGNATHA Latr. 



P. punctata, castanco-fusca, nitida, capite thoraceque punctatis, elytris 

 thorace longioribus, crebre striatim punctatis, abdomine parce punctulato, pe- 

 dibus ferrugineis. Long. 4-3 6 mm. 



Pennsylvania, Mr. Ulke ; Canada, Mr. Saunders. This species differs from 

 P. am eric an a by its dark color and much stronger punctures. In well 

 developed males the mandibles ascend in the form of a slender curved horn, 

 and the supra-antennal horns are long and straight, converging but slightly. 

 The elytra are free from the numerous short longitudinal lines seen in P. c o n- 

 v e r g e n s, and are tolerably strongly striate and punctured. 



LISPINUS Er. 



L. 1 a? v i c a u d a , minus elongatus convexus, piceo-niger nitidus, capite 

 parce punctulato, thorace elytrisque subtiliter parce punctatis, illo versus an- 

 gulos posticos fovea parva impresso, abdomine vix punctulato, segmentis piceo- 

 marginatis, ano dilutiore ; subtus piceus, antennis palpis pedibusque piceo- 

 ferrugineis. Long. 3-4 mm. 



Illinois, Mr. Ulke. This species is less slender than the others in my collec- 

 tion, and is easily distinguished by the characters above given. The exposed 

 portion of the abdomen is not much longer than the elytra ; the latter are con- 

 vex, finely but not densely punctured, with the sutural stria deeply impressed. 



MURMIDIUS Leach. 



M. depressus, rotundato-ovalis, parum convexus, testaceus subnitidus, 

 subtiliter pubescens, thorace latitudine fere triplo breviore, lateribus rotun- 

 datis, antice fortiter angustato, disco aequaliter parum convexo, elytris seriatim 

 punctatis. Long. 1 mm. 



This species has an extensive range in the Northern States. I have seen 

 specimens from Pennsylvania, District of Columbia, and Ohio. Of its habits I 

 know nothing. 



Another species, of which I have received two specimens, collected by Dr. 

 Brendel, in Florida, agrees perfectly with the figure of M. o v a 1 i s in DuVal's 

 work, and with the description of Ceutocerus advena Germ. Ins. nov. p. 85. It 

 is quite distinct from M. depressus by the larger size (1-5 mm.), oval 

 convex form, shining lustre, less obvious pubescence, and by the sides of the 

 thorax being distinctly impressed, especially towards the anterior margin, 

 where just inwards from the antennal cavity may be seen a broad fovea. Ger- 

 mar expresses a suspicion that his species is different from Hister o v a 1 i s 

 Beck., but there is nothing in any of the works before me to warrant the belief 

 that two distinct species have been recognized by any European entomologist. 



AMPHOTIS Er. 



A. U 1 k e i, elliptica, depressa, brumneo-picea, fere opaca, pube brevi de- 

 pressa parce vestita, thorace confertim punctato, lateribus piceo-rufis subdia- 

 phanis, late depressis, angulis posticis subobtusis, hand rotundatis ; elytris 

 margine late explanato, guttis nonnullis pone basin alterisque fasciam denta- 

 lam pone medium formantibus piceo-rufis; sutura, costisque utrinque 5 paulo 

 elevatis breviter setosis, interstitiis sub-3-seriatini punctatis, lateribus fortiter. 

 margine depresso disperse punctatis ; subtus punctata, picea, pedibus piceo- 

 rufis. Long. 7-5 mm. 



Washington, D. C, two specimens found by Mr. Ulke ; Massachusetts, Mr. 

 Sanborn. Differs from the species of L o b i op a (to which this genus is nearly- 

 allied) not only by the less setose upper surface, but by the costate elytra ; 

 there is a series of large punctures between the convex surface of the elytra 

 and the depressed less coarsely punctured lateral margin The mentum, 

 though bisinuate in front, has the exterior angles more prolonged than in the 

 other species of the genus, so that it appears broadly eniarginate. 



[Dec. 



