of the Amazon Valley. 395 



Long. 3^-5 lin. cJ ? . 



Found throughout the Amazons, flying slowly over 

 dead timber in new clearings. It resembles a large 

 Culex. 



Sub-fam. Clytin^. 



Genus Cyllene. 

 Newman, Entom. i. 7 ; Lacord. Gen. ix. 62. 



1. Cyllene amazonica, n. sp. 



C. cayennensi (Lap. & Gory) proximo affinis ; differt 

 solum elytris prope apicem linea transversa alteraque su- 

 turali griseis. Elongata, postice attenuata, nigro-velu- 

 tina ; thorace fasciis tribus flavis ; elytris fascia prope 

 basin arcuata, alteris duabus ante medium versus scu- 

 tellum abrupte recurvisj tertia postica arcuata ad suturam 

 interrupta pun ctiformi, flavis, apice sutura et fascia brevi 

 conjuncta obliqua griseis. 



Long. 5-7^ lin. c? ? . 



Common throughout the Amazons, on branches of 

 dead trees. It resembles in markings 0. caraccasensis 

 (Chevr.), but is decidedly broader and more robust in 

 form, in which character it agrees more with C. cayen- 

 nensis. 



Genus Neoclytus. 

 Thomson, Musee Scientifique, p. 67 ; Lacord. Gen. ix. 75. 



1. Neoclytus tapajonus, n. .sp. 



N. guyanensi (Lap. & Gory) proximo affinis, vix pos- 

 tice attenuatus, nigricans vel obscure piceus, partim 

 griseo-tomentosus ; thorace oblongo-ovato, lineis tribus 

 elevatis tuberculatis ; elytris apice truncatis et utrinque 

 bispinosis, supra prope basin vitta lata obliqua et parte 

 apicali griseo-tomentosis, fasciis tribus flavis, prima 

 pone vittam basalem griseam valde obliqua ad scutellum 



