99 



tribus magnia atrinque notato; oculis magnis, sat prominentibns; pronoto raodico, 

 capite parum longiori et latiori, glabro, oitidissimo, punctia minutis in disco, (<>■ 

 qaatuor magnis, equidistantibuB ad basim, atque duabua minoribus ad marginem 

 anteriorem impresso, lateribus prope media latissimis, rotundatia et marginal 

 margine basali recta, angulia obtasis; scuteUo magno, foveia quatuor magnis ad 

 basim, duabus minoribus ad medium, atqne singula ad apicem notato; elytris 

 brevibus, capite atque pronoto parum longioribus atque latioribus, ant* media 

 latissimis, perglabria, nitidisaimis, stria suturali punctorum remotorum utrinque 

 notatis ; pedibus atque antennis laete flavis. 



Body obtusely ovate, uigro-piceous, very sbiuiim and very convex, with the basal 



fovea? of the thorax deep. 

 Head largi and broad, with three large punctures on each Bide near the eye; eyea 



large and rather prominent : antennae moderate, bright yellow. 

 Thorax moderate, rather longer and rather broader than the head, widest near the 



middle, smooth and very Bhiuing, marked with minute punctures on the d 



and with four large equidistant fovea' near the base, and two smaller foveas 



near the anterior margin, sides rounded and margined, basal margin straight 



with the angles obtuae. 

 Scutellum large, triangular, with four large fovea? at the base, two smaller on the 



middle, and one near thi 

 Elytra rather short, rather longer and rather broader than the head and thorax, 



widest before the middle, very smooth and very shining, with a Butural stria 



of remote punctures on each side, sides rounded and margined, apex slightly 



attenuated. 

 /, rs rather long, very bright yellow, with the tibiaa Blightly dilated towards the apex. 

 UruL i parts black, with the mouth and coxsb bright yellow, and the venter piceous. 

 Differs from other species in its short ovate form, and in the peculiar sculpture of 



the scutellum. 

 Habitat, Central America. Found mar Aceytuno, in Guatemala, by Mr. Champion; 



and in Cordova, in Mexico, by M. Salle. 



Ptenidium concinnum. 



P. concinnum, Matthews, Ann. Mag. Nat. Hist. 6, xiii. ls!)t, p. :){•> 



L. c. ,';., lin. = 0G3 mm. — Suhovatum, postice valde attenuatum, convexum, 

 nitidiasimum, pilorum expers, fere impunctatum, nigrum, pronoto punctura vix 

 conspicua utrinque ad basim impresso; capite magno, ant ice rotundato; oculie 

 magnis, prominentibns; antennis longis, robustis, Isetissime flavis ; pronoto magno, 

 iiiori, hand longiori, ante medium latisaimo, bat ms contracto, glabro, 



oitidissimo, punctura vix conspicua ad basim impresso, lateribus antice valde 

 rotundatis, postice contractis, fortiter marginatis, mar alia sat 



acutis; elytris parvis, ovatis, capite atqui pronoto multo angustioribus, vix longi- 

 oribus, ante media latissimis, postice multum attenuatis, punctulia minut 

 remotisBimis impressis, apicibus obtusi rotundatis; abdomine hand exserto; pedi- 

 bus robustia, la te flavis. 



/.' ii mbovate, much attenuated posteriorly, convex, very shining, without hair, 

 almost impunctate, black, with an indistinct puncture on each side of the 1 

 of the thorax. 



//. id large, rounded in front; eyea large and prominent; antenn robust, 



very bright yellow. 



Thorax large, broader but not longer than the head, widesl bi fore the middle, con- 

 tract, d towards the base, Bmooth and very shining, with a very indistinct 

 puncture on each - ach rounded in front, contra- 



