MICUEllOTYLUS. 165 



Micrerotylus. 



(g. 11., typ. Grouovii, Herbst). 



These insects were ranked by Lacordaire nnder Barytopus, 

 with which they agree in the geminate striation of the elyti-a, but 

 ill the structure of the thorax and margining of the elytra they 

 are much nearer Eroti/lns. The males appear not to present any 

 external distinctive characters. 



Micrerotylus Gronovii. 



Chrysomela Gronovii, Ilerhst, Filssl. Arch. 10. 52, T. xxiii. f. 4. 

 Erotylus alternans, Oliv. E. M. vi. 434. 

 Brachysi^hmiLus — , Ldc. Erof. 579. 

 Cayenne. 



Micrerotylus dubitabilis, sp. n. 



B. Gronovii simillimus, macula humerali careiite, macula 

 apicali majore, fascia media utrinque abbreviata, punctis 3 prope 

 basin distinctus. L. 5 — 5^ lin. 



Amazons (Bates). 



Micrerotylus heterogrammus. 



Brachysphoenas heterogrammits, Lac. Erof. 382. 

 Sta. Cruz de la Sierra, Bolivia. 



Micrerotylus lunulatus. 



Erotylmlunulatas, Oliv. E. M. vi. 435 (1791). 



BracJtysphmnus Imjubris, Lac. Erot. 383. 



Columbia, Cayenne (Olivier), N. Granada. 



Specimens from the latter locality do not entirely agree; the 

 basal fascia is hardly reniform, and the sub-apical is denticulate, 

 but the three examples which I have seen vaiy a good deal 

 i7iter se. 



Micrerotylus hesitans, sp. n. 



B. Gronovii simillimus, sed minor, macula humerali, scutellari, 

 punctisque 3 basilaribus nigris, fascia sub-apicali ochracea angus- 

 tiore, denticulata, recta. L. 4^ liu. 



Ecuador (Buckley), Pebas (Bates). 



Micrerotylus fanerellus, sp. n. 



Ovatus, niger, nitidus, thorace medio fortius canaliculate, basi 

 fovea punctato ; elytris dimidio basali ochraceo, macula scutellari, 

 punctisque 3 nigris. L. d^ lin. 



N. Granada (Jansoii). 



