SiapJiylinidcc of tlic Amazon Vallci/. 161 



not closely punctured, and sparingly pubescent. The legs 

 are black. 



Ega ; one specimen, $ . 



8. Belonuchus liolisoides, n. sp. Augustus, depressus, 

 niger, nitidus, autennis elytrisque fuscis, illarum basi pedi- 

 busque testaceis. Long. corp. 2 lin. 



ISIas : abdomine segmento 7° ventrali margine apicali 

 medio minus profunde triangularitcr inciso. 



Antennse short, three basal joints yellow, the rest infus- 

 cate ; joints 2 and 3 short, about equal in length, 6 — 10 

 differing little from one another, slightly transverse. 

 jSIandibles and paljii yellowish. Head large, quite as 

 broad as the elytra, black and shining, with an irregular 

 row of six punctures between the eyes, and three or four 

 other punctures behind these on each side, and Avith a fine 

 impressed line on the fi-ont part. Thorax narrower than 

 the elytra, longer than broad, narrowed behind, the front 

 angles quite rounded and deflexed, the sides sinuate ; it is 

 black and shining, with a dorsal row of three punctures on 

 each side the middle, and besides these with only two or 

 three other small punctures. Scutellum finely and closely 

 punctured. Elytra about as long as the thorax, blackish, 

 finely and not closely punctured. Hind body slender; 

 segments 2 — 5 a little depressed at the extreme base, and 

 there coarsely and closely punctured, the other part 

 sparingly punctured, the pubescence fine and scanty. The 

 legs are dirty yellow. The anterior and posterior femora 

 very sparingly furnished with spines beneath. 



Ega ; two specimens, $ and $ . 



9. Belonuchus ceqiialis, n. sp. Elongatus, depressus, 

 capite, thorace antennisque nigris, illarum basi, pedibus, 

 pectore anoque testaceis ; elytris rufis, abdomine dense sub- 

 tiliter punctato. Long. corp. 3.^, lin. 



Mas : abdomine segmento 7" ventrali apice leviter emar- 

 ginato. 



About the size of Xcaitholinus lentus. Antenna? rather 

 short, yellowish at the base, the rest pitchy ; 3rd joint a 

 little longer than the 2nd; joints 5 — 10 each slightly 

 stouter than its predecessor, the 5th slightly transverse, 

 10th distinctly so. ]\Landibles pitchy; palpi yellowish. 

 Head rather large, broader than the thorax, with an irre- 



TRANS. ENT. SOC. 1876. — PART I. (mAY.) M 



