28 PROCEEDINGS OF THE NATIONAL. MUSEUM vol.65 



punctures which are arranged in double rows between the costae, the 

 punctures more or less confluent, very variable in size and shape, and 

 forming a network of alveolus areas, the sutural and lateral margins 

 coarsely and densely punctate; humeri feebly developed. Abdomen 

 beneath coarsely, densely punctate, and rather densely clothed with 

 moderately long recumbent hairs, the intervals smooth and shining; 

 first segment feebly convex, without a densely punctured and pubes- 

 cent median spot; last segment rather broadly rounded at apex. 

 Prosternum moderatel}^ convex; surface sparsely, coarsely punctate, 

 and sparsely clothed with fine, moderately long, recumbent hairs; 

 anterior margin feebly, broadly emarginate in fix)nt, with a small 

 lobe on each side, and where the margin is feebly elevated ; prosternal 

 process short, very broad, feebly convex, and without marginal 

 grooves, the sides parallel to middle of anterior coxal cavities, where 

 they are emarginate and abruptly narrowed, the apex very broadly 

 ix)unded. 



Male. — Not seen. 



Length, 20-25 mm. ; width, 8-9.5 mm. 



This species was described by Chevrolat (1838) from the island 

 of St. Thomas. Kerremans (1906) records specimens from the same 

 island in the collection of the British Museum and also in the Pari? 

 Museum. Kerremans has placed this species as a synonym of por- 

 cata Fabricius, but "Waterhouse (1904) writes that the type of thomae 

 is in the collection of the British Museum, and that it is distinct from 

 porcata. 



I have examined two females of this species, one from the collec- 

 tion of the British Museum simply labeled St. Thomas ; the other in 

 the collection of the American Museum of Natural History, from 

 the same locality, collected during July, 1915, probably by C Shoe- 

 maker. After carefully examining the above specimens, I agree with 

 Waterhouse that it is distinct from porcata. The punctuation on the 

 elytra is finer and more regular, the four costae on disk are distinctly 

 elevated, and the scutellar costae are entirely absent. 



Genus ACMAEODERA Eschscholtz 



Acmaeodera Eschscholtz, Zool. Atlas, vol. 1, 1829, p. 9 (reprint p. 8).— 

 SoLiER, Anu. Soc. Ent. France, ser. 1, vol. 2, 1833, pp. 274-275, pi. 10, 

 fig. 7. — Castelnau and Gory, Mon. Bupr., vol. 1, 1835-1836, pp. 1-31, 

 pis. 1-9. — Spinola, Ann. Soc. Ent. France, ser. 1, vol. 7, 1838, p. 341. — 

 Lacordaire, Gen. Col., vol. 4, 1857, pp. 66-68.— Horn, Trans. Amer. 

 Ent. Soc, vol. 7, 1878, pp. 2-27, pi. 1.— Fall, Journ. N. Y. Ent. Soc, 

 vol. 7, 1899, pp. 1-37. — Kerremans, Wytsman's Gen. Insectorum, fasc. 

 12, pt. 1, 1902, pp. 27-37; Mon. Bupr., vol. 2, 1906-1907, pp. 1-523, 

 pis. 11-16. 

 Head flat or feebly convex ; front strongly narrowed by the inser- 

 tion of the antennae ; epistoma very short and emarginate in front ; 



