XOinil AMEIUCAN COLEOPTERA. 1 111 



I». .llailiierlieiinii Matthews Trich. Illust. p. S:',, 1872.— L. c. .75 — .S7 mm. 



— Eloiie;iito, attemuiteil posteriorly, Ijlaek. and very shining; head rather small;- 

 eyes large and prominent; thorax large almost quadrate, dilated anteriorly, longer 

 and wider than the head, very smooth and shining, minutely and very reniotelv 

 jmnctured with two small fovete near the anterior margin, and four large, deep. 

 iM|uiilistant fovese near tiie base: sides scarcely rounded, but widely margined, 

 hinder angles obtuse; elytra long, narrow and much attenuated towards the apex, 

 not wider l>ut more than half as long again as the head and thorax, widest before 

 the middle, remotely but distinctly punctate-striate; sides margined and slightlv 

 rounded, apex acute, narrowly pale; legs and antenna; long, robust, bright yellow, 

 tibite dilated at the apex. 



Differs from other species in its narrow, attenuated form, larize (luad- 

 rate thorax and narrow elytra. 



T"'iiited States (Dr. LeConte). 



I*. i$;nobiIe Matthews n. sp.— L. c, .6," mm. — Oval, ratlier elongate, moder- 

 ately convex, pitchy black, smooth and very shining; head large, rather elongate ; 

 eyes large and prominent; thorax moderate, rather wider, but scarcely longer than 

 the head, smooth and very shining, with large and deep fovere near the base ; sides 

 margined and rounded, widest at the middle, hinder angles obtuse; elytra oval, 

 rather longer but not wider than the head and thorax, impunctate and sliining, 

 widest before the middle, attenuated posteriorly, apex pale: legs and antennre 

 rather long, bright yellow. 



Differs from other species in its minute size, form and j)eculi:ir sculp- 

 ture. 



< iuatemala (Cliampion). 



P. nitens Matthews n. sp. — L. c. 1 mm. — Elongate, oblong, very convex and 

 sliining. glabrous, deep black: head large and prominent: eyes large, rather 

 prominent: thorax moderate, wider and rather longer than the head, widest at 

 the base, very convex and shining, marked with a few indistinct punctures, but 

 'without the usual basal fovese; sides moderately rounded and faintly margined, 

 basal margin'slightly rounded, with the angles obtuse: elytra ovate, longer but 

 not wider than the head and thorax, widest at the middle, very convex and shin- 

 ing, marked with a few scattered punctures; sides faintly margined, apex obtuse, 

 fusceseent: legs and antenna; moderate, bright yellow. 



Differs from I't. Brnchii in its smaller size and the absence of the 

 hasal foveas of the thorax ; from others in its shining;, glabrous and almost 

 impunctate surface. 



Ilah. — Central Anu'rica : one specimen i'ound by Mr. K. Jaiison iirar 



Chontales, Nicaragua. 



P. ibveatuili Matthews n. sp.— L. c. .fi3 — .75 mm. — Obtusely ovate, very 

 convex and very shining, pitchy black; head large and broad with three large 

 jiuncrtures in a line on each side near the eye; eyes large and rather prominent; 

 thorax ?noderate, rather longer and wider than the head, with four deep, equidis- 

 tant foveie near the base, and two smaller fovere near the anterior margin ; sides 

 rnunded and margined, liinder angles obtuse; scutcllum large and very deeply 

 punct\ired; elytra rather short, slightly longer :uid wider than the head and 



(3S) 



