96 OTIORHYXCHID^E. 



[Horn. 



thorax and elytra. The third species is larger than the other two, the 

 scales pale cinereous or nearly white. The thorax is obliquely truncate 

 and somewhat lobed in front and slightly prolonged over the occiput. 



P. elegans, n. sp.* 



Oblong oval, moderately robust, surface densely covered with brilliant 

 metallic blue scales, varying to pearly and cupreous. Head and rostrum 

 as long as the thorax, sparsely punctured, densely scaly, with sparsely 

 placed, short, erect hairs, median line finely impressed. Thorax broader 

 than long, slightly narrower in front, sides feebly arcuate, apex and base 

 truncate, hind angles slightly laminiform ; disc moderately convex, mode- 

 rately coarsely punctured, densely covered with round scales and with 

 sparsely placed, very short, erect hairs. Elytra oval, slightly acuminate 

 posteriorly, sides feebly arcuate, surface striate, stria with moderate but 

 not closely placed punctures, intervals flat, densely scaly, and with two or 

 three rows of short, erect, white hairs. Body beneath rather sparsely 

 scaly and setose. Legs sparsely scaly, tibiae sparsely hairy. Length .20- 

 .28 inch ; 5-7 mm. 



The thorax at base is very feebly bisinuate, but to such a small degree 

 that I have preferred to say truncate. The vestiture varies in color greatly 

 and is always paler beneath than above. Resembles considerably the figure 

 given by Duval of Eusomus ovulum. 



Occurs from Kansas to Texas. The specimens from the latter region are 

 more brilliant. 



P. obscura, n. sp. 



Form oval, robust, surface densely covered with scales and short erect 

 hairs. Head and rostrum nearly as long as the thorax, head feebly con- 

 stricted behind the eyes, sparsely punctured, densely covered with brown- 

 ish scales, above each eye a paler space, head and rostrum beneath nearly 

 white. Thorax oval, slightly longer than wide at base, apex narrower and 

 obliquely truncate, sides moderately arcuate and gradually converging from 

 base to apex ; disc moderately convex, punctured, median line feeble, 

 densely covered with brownish scales, a broad paler line on each side of 

 middle, and a narrower line at the sides. Elytra regularly oval, scarcely 

 attenuate at apex, disc convex, striate, striae with moderate, not closely 

 placed punctures, intervals feebly convex at the sides, surface densely 

 covered with luteoue and brownish scales in irregular longitudinal stripes, 

 each interval with one or two rows of moderately long erect white hairs. 

 Body beneath and legs moderately densely scaly and paler than the upper 

 surface. Length .22-. 28 inch ; 5.5-7 mm. 



This species has much more the aspect of Strophosomus than any other 

 in our fauna. The eyes are much more prominent than the other two 

 species, and in this resembles the above genus. 



Two specimens, Texas. 



* " Naupacius of the group stupidm, nobills and crinitus, belonging to my 

 genus Pantopactus." Jekel. 



