110 Mr. H. W. Bates on the Longicorn Cokoptera 



Bolivia by M, D'Orbigny, was common on the Upper Amazons 

 at Ega. The yellow (partially macular) stripe of the elytra 

 varies a little in the degree in which it is broken up into spots ; 

 but it never forms a double row of distinct round spots from 

 base to apex, as shown in T. decoratus, and can scarcely be con- 

 sidered a local form of the same stock. 



3. Tceniotes Amazonum, Thomson. 

 TcBniotes Amazonum, Thorns, Archives Entomologiques, i. p. 172. 

 T. iiiger, capita linea curvata frontal!, vitta utrinque laterali, altera 

 coronali per thoraeem scutellum et elytros continuata (hie dentata) 

 pallida flavis ; thorace utrinque linea tenuissima grisea ; elytris 

 maculis parvis numerosis, quarum duabus vel tribus discoidalibus 

 majoribus, flavis ; corpore subtus vitta flava laterali : maris pedi- 

 bus anticis valde elongatis, tibiis curvatis, tarsis baud pilosis. 

 Long. 9-16 lin. J ?• 



A common insect in the forest at Ega, on the Upper Amazons. 

 It is probably a local form of T. scalaris, Fabr., but differs much 

 from the description given by that author. The terminal ventral 

 plate is formed as in T. decoratus. 



4. Taniotes farinosus, Linnaeus. 



Cerambyx farinosus, Linn. Syst. Nat. ii. 626. 24 ; Oliv. Ent. Ixvii. p. 50, 



f. 46 a. 

 pulverulentus, Oliv. Ent. Ixvii. p. 60, f. 46 b. 



T. niger, griseo vestitus ; capita thoraceque lineis tenuibus tribus, 

 elytris maculis numerosis parvis, flavo-griseis, his apice acutis ; 

 corpore subtus flavo maculato : maris pedibus anticis valde elon- 

 gatis, tibiis curvatis, tarsis hirsutis. Long. 13 lin. S . 



This species was a rare one in the Amazons region, and found 

 only in the dry forests of the Tapajos. The spines of the ter- 

 minal ventral segment are more elongated than in the other 

 species. 



Subtribe OncideritjE. 

 Group Onciderina. 

 Genus Hypselomus, Perty. 

 Perty, Delectus Anim. Articul. Brasil. p. 95 (1830-34). 

 Syn. Hypsioma, Serv. Ann. Soc. Ent. Fr. p. 38 (1835). 

 This genus is distinguished from its allies by its short sub- 

 trigonal form of body, with projecting and often acute shoulders 

 of the elytra. The claw-joint of the tarsi is not so much elon- 

 gated as in Oncideres, or even Cli/temnestra. It is very closely 

 allied to the latter genus, but is distinguishable at once by the 

 abrupt clavate form of the basal joint of the antennae and the 



