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Show 1881.] COLEOPTERA FROM ECUADOR. 261 riorly. Scutellum shining, pitchy. Elytra dull brick-red, very convex ; each elytron with ten lines of very strong, rather close punctures, besides the short scutellar line; the second interstice rather broader than the others, distinctly raised and shining; the fourth costa is also raised, but in a much less degree. This species is most nearly allied to P. costata, Waterh. (Cist. Ent. ii. 1879, p. 428), but is more opaque and has the second and fourth interstices only of the elytra raised. *2. DEMOTISPA ELEGANS, Baly, Ent. Mo. Mag. 1875, xii. p. 75. Hab. Ecuador. Mr. Buckley did not meet with this species. 3. CEPHALOLIA PRINCEPS, Baly, Cat. Brit. Mus. p. 45. 4. CEPHALOLIA CORALLINA, Erichs., Wiegm. Arch. 1847, i. p. 151. 5. CKPHALOLIA AFFINIS, Baly, Cat. Brit. Mus. p. 44. 6. CEPHALOLIA FLAVIPENNIS, Baly, Trans. Ent. Soc. 1869, p. 373. 7. CEPHALOLIA DEGANDEI, Baly, Cat. Brit. Mus. p. 57. 8. CEPHALOLIA ALTERNANS, n. sp. (Plate XXX. fig. 5.) C. elongata, nitida, flava ; fronte, thorace macula antica, elylrisque fasciis duabus latis nigris. Long. 4 lin. This species is very close to C. degandei, Baly, but is altogether a little more elongate and of a much deeper yellow. The antennae are a little longer; the 5th and 6th joints are evidently longer than those in C. degandei; deep yellow, with the five apical joints very pale yellow. The thorax has a black trapezoidal spot in the middle of the front margin ; the middle is smooth ; but towards the sides are some rather strong punctures, which are placed not very close together. 9. CEPHALOLIA PULCHELLA, Baly, Cat. Brit. Mus. p. 56. The type specimen of this species from Nauta has the black on the thorax confined to the middle of the anterior margin, whilst the specimens obtained by Mr. Buckley have the thorax black, with the hind margin only yellow. In other respects the specimens do not differ materially. 10. CEPHALOLIA ORNATA, n. sp. (Plate XXX. fig. 6.) C. nigra, nitida; thorace angustissime flavo-marginato, elytris flavis, macula laterali apiceque nigris. Long. 2 | lin. Thorax rather narrower than the elytra, and about a quarter broader than long, very gently convex, parallel at the sides ; moderately thickly and somewhat strongly punctured at the sides, smooth on the disk ; the anterior angles gently rounded off and obtuse ; the lateral margins narrowly reflexed; the posterior angles a little less |