the Coleopterous Family ErotylidcB. (165) 5-il 

 Micrerotylus. 



(g. n., typ. Gronovii, Herbst). 



These insects were ranked by Lacordaire under Barytopus, 

 witli whicli they agree in the geminate striation of the elytra, but 

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

 are much nearer Erotylus. The males appear not to present any 

 external distinctive characters. 



Micrerotylus Gronovii. 



Chrysomela Gronovii, Herhst, Fiissl. Arch. 10. 52, T. xxiii. f. 4. 

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

 Brachyspli<x,nus — , Lac. Erot. 579. 

 Cayenne. 



Micrerotylus dubitabilis, sp. n. 



B. Gronovii simillimus, macula humerali carente, macula 

 apicali majore, fascia media utiinqvie abbreviata, pimctis 3 prope 

 basin distinctus. L. 5 — 5 J lin. 



Amazons (Bates). 



Micrerotylus heterogrammus. 



Brachysphcenus heterogrammus, Lac. Erot. 382. 

 Sta. Cruz de la Sierra, Bolivia. 



Micrerotylus lunulatus. 



Erotylus lunulatus, Oliv. E. M. vi. 435 (1791). 



Brachysphcenus luyuhris, 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 vary a good deal 

 inter 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. A\ lin. 



Ecuador (Buckley), Pebas (Bates). 



Micrerotylus fiinerellus, sp. n. 



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

 fovea punctato ; elytris dimidio basali ochraceo, macula scutellari, 

 punctisque 3 nigris. L. 6| lin. 



N. Granada (Janson). 



