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XVI. Gontrihutions to an Insect Fauna of the Amazon 

 Valley (Coleoptera^ Cerambycid^) . By H. 

 W. Bates, F.Z.S., late Pres. Ent. Soc. 



[ Read 4th Jiily, 1870.] 



The present memoir is a continuation of a former one on 

 the Prionides (Trans. Ent. Soc. 1869, p. 37), and the 

 classification, with trifling modifications, is that esta- 

 blished by Lacordaire in the eighth and ninth volumes of 

 his " Genera des Coleopteres.^^ 



Fam. CERAMBYCID^. 



Section A. Eyes coarsely facetted. 



Sub-fam. (Emin^. 



AntennjB without spines, anterior coxa3 with their 

 sockets lengthened externally, intermediate sockets 

 open.* 



Genus Atenizus. 

 Bates, Entom. Monthly Mag. iv. 28 (1867). 



(Charac. emend.) . Corpus parvum, sublineare, depres- 

 sum, pubescens. Caput rotundatum, thorace latius, 

 genis brevissimis, fronte convexa, vertice tuberculo magno 

 instructo ; oculis magnis emarginatis, lobo inferiori ante 

 tuberculos antennarum producto, superiori brevi ; palpis 

 articulo terminali conico, maxillaribus (?) elongatis, (^ 

 pendentibus. Antennee filiformes, hirsutae, articulo basali 

 apice infra dilatato. Thorax ovatus, depressus, inermis. 

 Elytra linearia, apice rotundata. Pedes breves, lineares, 

 tarsis posticis elongatis. Coxee anticte et intermedige 

 subconicfe, contiguas, exsertse, acetabula antica extus an- 

 gulata, intermedia aperta; laminae sternales inter coxas 

 obsoletao. 



This is one of the genera which M. Lacordaire was 

 unable to place in the rigid system of classification 



* That is, the mesothoracic epimera are inserted between the meso- 

 and meta- thorax so far as to reach the orbit of the sockets. 



TRANS. ENT. SOC. 1870. — PART III. (AUGUST.) 



