248 MR. n. m'laculan on a sistematic 



Rambur'a seneoe may possibly be this species. 



7. U. CHLOROPS, Blanchard. (Ascal. cblorops. Blanch. Voy. d'Or- 



bigny, p. 218, tab. xxviii. fig. 8.) 

 Hab. Bolivia. 

 Indeterminable. 



^ 8. U. LiMBATA, Burmeister. (Ascal. limbatus, Burm. Handb. ii. 

 p. 1001. — Uhila limbata, Ramb. Nevrop. p. 358. — A. iuhonestus. 

 Walk. Cat. Brit. Mus. Neurop. p. 437 (?)— A. sublugens. Walk. Tr. 

 Ent. Soc. Loud. n. s. vol. v. p. 196 (?)) 

 Hab. Central and Soutb America. 



9. U. VETULA, Rambur. (Ululavetula, Hamft. iVei;roj>. p. 358. — Ascal. 



subvertcns, Walk. Cat. Brit. Mus. Neurop. p. 437.) 

 Hab. Soutb America. 



How far my appreciation of the synonymy of the last two spe- 

 cies may be correct remains to be proved. Possibly several good 

 species may bo erroneously grouped together under the names ; 

 but they vary so much that it is impossible to form a correct opi- 

 nion without extensive series from many localities. 



The three species diagnosed below are very distinct, and un- 

 doubtedly new. 



+ 10. U. mexicana, nov. sp. Antennae nigrse, tenuiter flavo-cinctse ; 

 clava nigra, flavido-terminata. Trons vertexque fusco-villosi. Tborax 

 niger, supra rufo-maculatus, infra cinereo-villosus. Pedes picei ; 

 tarsis nigro-annulatis. Abdomen nigrum, brunneo-variura. Alae 

 lata;, ad apicem vix acutae, vitreae ; pterostigmate nigro-fusco ; venis 

 venulisqne nigris : posticae macula magna triangular! prope basin 

 marginis interioris, fusca, ornata;. Long. corp. 12-13'"; exp. alar, 

 antic. 25-29'", postic. 23-27'". 

 Hab. Mexico. In De Selys's collection and in the Oxford Museum. 

 Much resembles Cordulecerus surinamensis, F. An individual 

 in the Oxford Museum, probably immature, wants the spot on the 

 hind wings. 



't'll, U. AMi'LA, nov. sp. Antennae flavidae, tenuiter nigro-cinctac ; 

 clava nigra. Frons flavus, fusco-villosus. Occiput flavnm, transverse 

 grisco-strigatum. Thorax rufo-ochraceus, supra fusco-varius, infra 

 cinereo-villosus. Pedes flavi; tarsis nigro annulatis. Abdomen rufo- 

 ochraceum, supra utrinque oblique nigro-strigatum, infra infuscatum. 

 Alae lat£e, in medio dilatatae, vix acutae, vitrejc, vcl iu posticis ad api- 

 cem flavido-fumosis, vel omnino fumoso-tinctae ; venis venulisque 

 nigris ; pterostigmate in anticis flavo, in posticis fuscescente. Long_ 

 Corp. 13"'; exp. alar, antic. 29-33'", postic. 26-30"'. 

 Hab. St. Domingo. In my own collection and in Brit. Mus. 



