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Show 1881.] COLEOPTERA FROM ECUADOR. 269 there are four costae, the first and third are only distinct posteriorly, the second is very strong, shining, the fourth is finer and lateral; there is an ovate red spot just before the middle, and another some distance from the apex. This species is most nearly allied to M. amazona, Baly; but that has three red spots on each elytron. 35. CEPHALODONTA LYCOIDES, n. sp. (Plate XXX. fig. 10.) C. nigra, opaca; thoracis lateribus ochraceis, flexuosis; elytris pcstice bene explanatis, ad apicem longitudini latitudine a?quali, vitta obliqua humerali, fascia post medium suturaque ad apicem ochraceis. Long. 7 lin. Thorax slightly convex, rather rough above, trisinuate at the sides, the anterior sinus the deepest, leaving the anterior angles projecting. Elytra at the base one third broader than the thorax, gradually widening to the apex, where their breadth equals their length; the sides rectilinear, the apex truncate and irregularly and obtusely dentate; each elytron has four costae, the first is fine and indistinct, the second is well marked and shining, the third is only distinct over the shoulder, the fourth is fine and only distinct towards the apex ; there are two lines of very strong transverse punctures in each interstice ; on the lateral expanded part there are some strong transverse ridges, the apical portion strongly punctured. The underside of the head, the middle of the sterna, and the middle of the abdomen at its base and the lateral margins are yellow. The femora have a yellow spot at the base. Hab. Chiquinda. B.M. Although this species has at first sight no resemblance to Cephalodonta, I find no characters of sufficient importance to induce me to separate it as a distinct genus. It has a strong resemblance to some species of Lycidae of the genus Calopteron. I think that Alurnus cyaneus, De Breme (Ann. Soc. Ent. Fr. 1844, p. 312), a species omitted from Gemminger and Von Harold's * Catalogue of Coleoptera,' is better placed in Cephalodonta than in Alurnus, and is closely allied to the species I have just described. 36. STETHISPA BONVOULOIRI. (Plate XXX. fig. 20.) Stethispa bonvouloiri, Baly, Ann. N. Hist. 1864, xiv. p. 266. EXPLANATION Fig. 1. Homalispa cribripennis, p. 264. 2. • collaris, p. 264. 3. Alurnus mutahilis, p. 265. 4. Cephalolia anyusticollis, p. 263. 5. alternans, p. 261. 6. ornata, p. 261. 7. • antennata, p. 262. 8. felix, p. 263. 9. lata, p. 262. 10. Cephalodonta lycoides, p. 269. 11. Arescus pulcher, p. 266. 12. pulcher, var., p. 266. OF PLATE XXX. Fig. 13. Arescus cemulus, p. 266. 14. perplexus, p. 265. 15. Uroplata rugata, p. 267. 16. deplanata, p. 267. 17. bispinosa, p. 267. 18. Odontota annulipes, p. 268. 19. Prosopodonta scutellaris, p. 260. 20. Stethispa bonvouloiri, p. 269. 21. Metaxycera quadriguttata, p. 268. |