468 BULLETIN 182, UNITED STATES NATIONAL MUSEUM 



Remarks. — This species is not greatly different in any obvious char- 

 acter from the others described here but seems to be distinct as outlined 

 in the key. It is much smaller than darlington^ which is the only 

 other species known from Trinidad. 



I have received no record of its habits. 



2. ACYLOPHORUS INSULANUS Bierig 



Acylophorus insulanus Biekig, 1938, pp. 125, 128, 129, figs. 16, 28. 



Description. — Intense black, border of seventh tergite and apex of 

 abdomen rufous. Head with postgena densely punctate and pubes- 

 cent; occipital furrow distinct; fourth segment of maxillary palpus 

 slightly enlarged and acuminate ; finely and densely punctured behind 

 the eyes. Pronotum one-twelfth wider than long. Elytra one-fourth 

 broader than long. Scutellum with punctures as on base of elytra. 

 Abdomen with punctures crowded at the base of each segment, so as to 

 elevate the narrow intervals. Length, 6I/2 to 7l^ mm. (From 

 Bierig.) 



Type locality. — Cuba. 



Types. — In (he collection of Alexander Bierig. 



Records. — The following are the records known to me : 



Cuba: El Mariel (Bierig, 1938), Laguna La Canoa (Bierig, 1938). 

 Isle of Pines: (Bierig, 1938). 



Specimens examined. — I have seen no examples of this species. 



Remarks. — This species is placed in the subgenus Acylophorus s. str. 

 by Bierig. It had previously been identified as A. pronios Erichson, 

 from which he distinguishes it. 



The types were found on the banks of streams and ponds, about the 

 base of plants. 



3. ACYLOPHORUS AENESCENS, new species 



Description. — Black, abdomen with faint bluish luster. Head sub- 

 orbicular, eyes more than half as long as head; maxillary palpus 

 with third and fourth segments somewhat enlarged, fourth acuminate; 

 wutli a few large setiferous punctures around sides of disk and one 

 above each eye, and with scattered punctulae almost obsolete ; without 

 ground sculpture. Pronotiim slightly wider than long, with a pair 

 of large discal punctures just before middle and another subapical, 

 and one near side at apical fifth; with obsolete punctulae as on head 

 and without ground .sculpture. Scutellum with a few punctures as on 

 base of elytra surrounded by a broad smooth margin. Elytra with 

 moderately coarse but distinctly muricate punctures separated by one 

 to two times their diameter; without ground sculpture. Abdomen 

 with moderate submuricate punctures bearing strong setae and sep- 

 arated by two to four times their diameter; without ground sculpture. 

 Length, 6V^ mm. 



