NORTH AMERICAN COLEOPTERA. 281 



carinate iu the middle of the rather broad tubercle, crowned with the usual two 

 pencils of yellow hair, lateral upper angle of the wings largely reflexed, forming 

 a three-edged pyramid, curved forward, one edge is formed by the lateral edge, 

 the other by the upper edge of the clypeus, the third runs at the outside back- 

 wards to the base of the antenuse; labruni emarginate, granulate; antennse: 

 joint 1 twice as long as wide, flattened above, the flat surface divided longitu- 

 dinally in an upper part smooth, shining, and a lower part granulated ; 2-3 cy- 

 lindrical, slightly narrower at their bases, 8 transverse. 9 oval or thickly lentic- 

 ular, 10 globose, not foveate, 11 not as thick as the tenth, ovate acuminate, not 

 longer than the ninth and tenth together; prothorax Irisulcate, bicarinate from 

 the middle to the tubercle, which is large acuminate and carinate anteriorly and 

 posteriorly, the middle of the base carinate; elytra punctate, base trifoveate, 

 humeral callus acute; first dorsal segment one-third as long as its width, basal 

 impressions deep, carinulie one-fifth apart; posterior tibise with a thick spur near 

 the tip inside. 



Ponchatoula, La. ; a single specimen (Hugo Soltau). 



Trimioplectiis ? parabolicus n. sp. (PI. IV, fig. 7;— Brownish yellow 

 pubescence fine, dense, not as convex as T. obsoleius. Head wider than long, an- 

 tennal tubercles prominent channeled, sulcus broadly parabolic connecting the 

 pubescent fovese, base angularly impressed, but neither sulcate nor carinate, neck 

 rather thick; palpi small, hardly longer than the second antennal joint; an- 

 tennae: joint 1 rather short, 2 obovoidal large, 3-7 small globular, 8 slightly 

 transverse, 9 as long as 8, and three times wider, 10 longer, and three times 

 wider, 11 wider ovate ; prothorax wider than long, lateral fovese seen from above, 

 connecting sulcus, angulated iu the middle, base minutely punctured; elytra 

 nearly quadrate, the sutural basal punctures not farther apart than the lines; 

 discal fovete deep, with a short elongation as long as one-fifth of the elytral 

 length ; dorsal segments all nearly equal in length, base not carinate; ventrals, 

 the second but little longer than the third; legs: the anterior thighs stronger, 

 middle trochanter armed with a conical thorn. 



This is a doubtful member of the genus Trimiopledus, and does 

 not compare more favorably with any other genus. 



Eiiplectns eloiigatiis n. sp.— Form and sculpture resembling Euplectus 

 conflnens, but more robust. Length 1.4 mm. Head of the male shorter, more 

 transverse, no frontal transver.se sulcus as in E. conjluens, otherwise like it in 

 sculpture : prothorax nearly as wide as the head, much wider than in conjluens, 

 impunctate, widest in the anterior third, where it is more angularly rounded 

 than E. conflnens. and therefore appearing more transverse; elytra impunctate, 

 sutural lines arcuate, discal lines reaching to half the length of the elytron; 

 abdomen narrower than the elytra, side parallel, impunctate; ventral % sexual 

 marks differ from E. conflnens. having the fifth ventral not modified, the sixth 

 or penultimate deei)ly foveate in the middle, the last lozen-shaped and carinate 



From Chestnut Ridge, Pa. (Jerome Schmitt). 



I consider this species, with K conflnens and californicus, as cli- 

 matical races of Pennsylvania, Illinois and California. 



Kliexiii!^ Schiiiitti u. sp.— Ferruginous yellow, impunctate, pubescence 

 fine, more recumbent. Length 1.3 mm. Head more convex, the occiput carinate 



TRANS. AM. ENT. SOC. XX. (36) OCTOBEK. 1893. 



