new genera and species of Cryptoceplialidce. 231 



Elytra rather broader than long, oblong-quadrate, the 

 sides rather strongly lobed ; above convex, slightly thick- 

 ened just round the scutellum, strongly punctate-striate, 

 the punctures piceous, the puncturing confused near the 

 suture, and also on the median line of the inner disk. 

 Body beneath very sparingly clothed with adpressed hairs. 

 Abdomen pale yellow. Anterior pair of thighs thickened. 

 Prosternum faintly grooved longitudinally on either side, 

 its hinder apex obtusely angulate. 



Genus Pachybrachys, Suffr. 

 Pachyhrachys coyitortus. 



Oblongus, subcylindricus, pallide piceus, albido varie- 

 gatus, nitidus; thorace sat profunde, subremote punctato, 

 ante basin transversim excavato, albido et piceo-variegato ; 

 elytris albidis, sat fortiter punctato-striatis, striis piceis, 

 hie illic contortis, disco exteriori interruptis ; interspatiis 

 laBvibus, hie illic dilatatis et maculas irregulares formanti- 

 bus ; antennis piceis, extrorsum nigro-piceis. 



Long. 1| lin. 



Hah. — Banks of the Amazon, Para, Santarem. Appa- 

 rently common. 



Head sparingly clothed with griseous hairs, coarsely 

 and rather closely punctured ; • yellowish-white ; the punc- 

 tures piceous; space between the eyes impressed with a 

 longitudinal punctured groove; eyes large, reniform, the 

 notch angular; antenna three-fourths the length of the 

 body in the $ , shorter in the $, slender; the basal joint 

 ovate, yellowish-white, the rest piceous ; five or six outer 

 joints uigro-piceous. Thorax nearly twice as broad as 

 long at the base; sides straight, obliquely converging 

 from base to apex, all the angles acute ; basal margin 

 sinuate on either side the medial lobe, the latter slightly 

 produced, very obtusely rounded; ui)per surface trans- 

 versely convex, transversely exca^'ated on the hinder disk, 

 coarsely and deeply, but not very closely punctured; 

 general surface pale piceous, a broad irregular lateral 

 vitta, extending more or less along the apical margin, 

 and an irregular longitudinal patch on the middle of the 

 disk, extending from base to apex, Avhite. The extreme 

 outer limb piceous. Sometimes the general surface is 

 white, with the extreme outer linib and an ill-defined 

 oblique vitta on either side the disk pale ])icc()us. Scu- 

 tellum elongatc-trigonate, its apex truncate, pale yellow- 



