Stapltylinid<2 of the Amazon Valley. 99 



2. Acylophorus angusticeps, n. sp. Niger, nitidus, 

 tarsis fulvis, elytris sat crebre fortiterque punctatis; capite 

 angusto. Long. corp. 4^ lin. 



Closely allied to A. glabricollis, rather larger, the head 

 narrower ; the antenna (the basal joints at any rate) 

 longer ; and the 6th and 7th segments of the hind body 

 entirely black. The antennae are destroyed with the ex- 

 ception of the first four joints ; these are longer than in 

 (jlahricollis, blackish, with the extreme base of the 1st 

 joint a little yellowish ; 3rd joint not quite so long as the 

 2nd, a little "longer than the 4th. Palpi pitchy. Head 

 elongate and very narrow, with the usual six larger punc- 

 tures, the two forming the obliquely placed pair (near the 

 neck on each side) very close together. Thorax as in 

 glabricollia. Scutellum broader than in glabricollis, 

 strongly punctured. Elytra scarcely so long as the 

 thorax, their punctuation as in glabricollis. Hind body 

 much narrowed to the extremity, black, the apex of the 

 6 th segment concolorous ; each segment is, at the extreme 

 base, closely and strongly punctured, the hinder part of 

 each much more sparingly. Legs pitchy black ; tarsi 

 dark reddish. 



Tapajos ; one specimen. 



3. Acylophorus acuminatus, n. sp. Niger, nitidus, 

 antennarum basi, pedibusque testaceis, elytris sat crebre 

 fortiterque punctatis. Long. corp. 3 lin. 



Much smaller and narrower than A. glabricollis. An- 

 tennae with the basal half of the 1st joint yellowish, the 

 rest pitchy; 2nd joint much longer than the 3rd, 4th 

 shorter than the 3rd, 5th longer than 4th ; from this to 

 the 10th each a little shorter and stouter than its prede- 

 cessor, 10th distinctly transverse; last joint stout and 

 rounded at the extremity, a little longer than the 10th. 

 Head suborbiculate, being comparatively both shorter and 

 broader than in glabricollis, with the usual punctures. 

 Thorax pitchy, rather broad but of the usual form. 

 Elytra scarcely so long as the thorax, black, together 

 with the scutellum rather closely, moderately coarsely 

 punctured. Hind body very pointed at the extremity; 

 the segments at the base and sides of each closely and not 

 coarsely punctured. Legs yellow. 



Ega ; three specimens. 



H 2 



