1881.] COLEOPTERA FROM ECUADOR. 261 



riorly. Scutellum shining, pitchy. Elytra dull brick-red, very con- 

 vex ; each elytron with ten lines of very strong, rather close punc- 

 tures, besides the short scutellar Hne ; 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. 



Hah. Ecuador. 



Mr. Buckley did not meet with this species. 



3. Cephalolia princeps, Baly, Cat. Brit. Mus. p. 45. 



4. Cephalolia coRALLiNA, Efichs., Wiegm. Arch. 1847, i. 

 p. 151. 



5. Cephalolia 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, elytrisque 

 fasciis duahus latis nigris. Long. 4 lin. 



This species is very close to G. 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 Jlavo-marginato, elytris 

 flavis, macula laterali apiceque nigris. Long. 2i lin. 



Thorax rather narrower than the elytra, and about a quarter 

 broader than long, very gently convex, parallel at the sides ; mode- 

 rately 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 



