mi 



et Bat prominentibas ; pronoto sal magno, transverso, capite latiori, hand longiori, 

 prope medium latissimo, impnm labro, nitidissimo, lateribue rotundatis et 



marginatis, margine basali recta, angulis obtusis ; elytri$ obi I [ue 



pronoto angastioribas, vix Ion media latissimis, lateribus marginatis, 



apice obtuso, late rufescenti : pedibua atque antennis modicis, lsete flavis. 



\y elongate-oblon«, piceons, very convex and very sinning, impunctate. 

 // // Large and broad; cms ratber large and ratber prominent ; antennae moderate, 



bright yellow. 

 Thorax rather large, transverse, broader but not longer than the head, widest near 



the middle, impunctate, Bmooth and very shining, sides rounded and margined. 



basal margin straight with the angles obt.i 

 5 tellum moderate, triangular. 

 Elytra obtusely ovate, narrower and Bcarcely longer than the head and thorax, 



widest near the middle, convex, very shining and impunctate, side's margined, 



apex obtuse and broadly rufescent. 

 moderate, bright yellow. 

 '■•;• parts piceons, with the head, mesosternum, coxae, and venter flavescent. 

 /' !>rs from others in its broad head and thorax, narrow elytra, and impunctate 



surface. 

 Habitat, Central America. Found in several parts of Guatemala by Mr. Champion. 



Ptenidium nitens. 



/'. nit n», Matthews, Trans. Am. Ent. Soc. xi. p. 149, 1884 ; Biol. Cent.-Am 



Col. ii. pt. i. |i. 151, 1888. 



L. c. fc lin. = 1 mm. — Elon ale, valde convexum, aterrimum, glabrum, 



nitidissimum, pronoti punctis basalibus nullis ; capite magno, prominenti, impunc- 



• : oculis magnis, prominulis ; -pronoto modico, capite latiori et parum longiori, 

 ad basim latissimo, valdi ao, punctis exiguis, remotis in di 



notato, Qullis, lateribus modice rotundatis, vix marginatis, margine 



ilj leviter rotundata, anguhs obtusis ; elytris ovatis, atque pronoto longi- 



oribus, baud latioribus, anfo latissimis, valde convexis, nitidissim 



glabris, punctie remotis indistinctissime impressis, lateribus leviter marginatis. 

 apice obtuso, fuscescenti ; pi dibus atque antennis modicis. late flavis. 



Body elongate-oval, very convex, deep black, smooth and very shining, with 

 thoracic foveae. 



Head large and prominent, impunctate; eyes large and rather prominent ; antennae 

 moderate, bright yellow. 



Thorax moderate, broader and rather longer than the head, widest at tl rv 



convex and very Bhining, indistinctly marked with minute, remote punctun - 

 on the disc, without foi les moderately rounded, 



margined, basal margin faintly rounded, with the angles obtuE 

 ■■Ihim large, triangular, bi ind Bhining. 



Elytra ovate, longer but not broader than the head and thorax, widesl the 



middle, very convex and very Bhining, almost Bmooth, very indistinctly marked 

 with minute remote punctures, sides faintly margined, apex obtuse, fuscesccnt. 



Legs moderate, bright yellow. 



i rparts Mack, with the mouth and coxae yellow. 



rs from /'. Bruckii in the absence of tie basal fovea of the thorax: and from 

 other species of this genus in its Bhining glabrous surface. 



Habitat, < antral Am* ri Found in Chontales, Nicaragua, by Mr. E. M. Janson. 



