DESCRIPTIONS OF NEW Sl'KCIKS. 127 



the anterior tibias not dilated : it differs from thai Bpeciea by the 

 body beneath being not black, bu1 of the same color aa the upper 

 surface. The antennae are one-third shorter than the bead and 



thorax and considerably thickened externally. 



JWETACIvISA Hi-Val. 



406. M. atra. Elongata convexa, nigra subnitida, capita oonfertim, 



thorace fortius punctato, lioc latitudine fere daplo breviore, laterilms 

 rotundatis, apioe emarginato, angiitis anticis rotundatia, basi ntrinqae 

 obliqua medio rotundata baud marginata, angulia postioia obtasia hand 

 rotundatis; elytris thorace vix latioribaa postice obtuse rotundatis, 

 striis profundis fortiter punotatis, interstitiis convezia pnnotalatis, stria 

 scutellari e punctis 4-6 composita ; subtus pieea hitida paroe punctulata, 

 propleuris parce rude punctatis, gula Bcabro-punotato, aotennie pedi- 

 busque obscure ferrugineis. Long. *30 — '35. 



Atlantic States, from New York to Texas. I formerly regarded 

 this insect as a species of Haplandrus, bul it differs from the 

 Tenebrionini and Ulomini by the basal membrane between 1 1n- 

 clypeus and epistoma being visible, and in fact the head resembles 

 in all respects the head of Platydema, except that the eyes are 

 less prominent; the middle coxas are but loosely inclosed by the 

 episterna, and the trocbantin is quite distinct. 



The genus is readily distinguished from the others of the tribe 

 by the mentum being trilobed, rounded at tip, with the lateral 

 lobes short and inflexed as in many Tenebrionini : the epipleura" do 

 not extend to the tip of the elytra; the last joint of the hind tarsi 

 is longer than the other three, and the first is scarcely as long as 

 the two following united ; the last joint of the maxillary palpi is 

 triangular and dilated as in Platydema, and the intercoxal pro- 

 cess of the first ventral segment is triangular and rounded at tip 

 The antennae are nearly as long as the head ami thorax, and are 

 moderately thickened externally; tin- 3d joint is twice as lot 

 the 2d; the 4th and nth are shorter, but Bcarcely broader than the 

 3d; the 6th and 7th arc triangular, the 8th, 9th, and 10th trans- 

 verse, and the 11th rounded, nol broader than the preceding 

 The form of the antenna 1 is more that of tin- Tenebrionini than 

 Diaperini, but the head is received in the pr ithorax as far as the 

 eyes, as in the latter tribe. 



