16 PROCEEDINGS OF THE NATIONAL, MUSEUM vol.65 



POLYCESTA PERFECTA Kerrenians 



Polycesta perfecta Kerkemans, Man. Bupr., vol. 7, 1914, pp. 257-258. 



The following is a translation of Kerreman's original description : 

 Length, 24 mm.; width, 9 mm. Elongate, attenuate behind, 

 slightly convex, entirely black above, with a very feeble purple re- 

 flection on the elytra, turning to blue along the suture; beneath Wnck 

 with a slight bronzy tinge, pubescence of a dull reddish color, with 

 the tibiae and tarsi bluish, Remarkable for the regularity and dis- 

 tinctness of the elytral structure. Head rugous, with irregidar 

 vermiculate reliefs. Pronotum wider than long, narrower in the 

 front than behind, widest behind the middle ; anterior margin trun- 

 cate; sides strongl}' obliquely converging to the front, rounded just 

 behind the middle, then sinuate and less converging to the base, 

 with the posterior angles small, feebly projecting externally and 

 feebly depressed on the humeral angles of the elytra; base bisinuate; 

 middle of disk depressed; surface covered with round punctures, 

 rather closely and unequally spaced, more unequal and irregular near 

 the anterior angles, where the intervals form a network of irregular 

 areas. Scutellum small, wider than long. Elytra feebly lobed and 

 transversely impressed at the base, nearly parallel on the sides to the 

 posterior third, then regularly arcuately attenuate to the tip, Avhich 

 is armed with teeth, unequal in length, and densely and irregularly 

 placed between the suture and the sixth row of punctures; surface 

 covered with rows of coarse, transverse, subrectangular punctures 

 arranged in very regular double rows, and separated by smooth, 

 feebly costiform lines. Beneath finely and unequall}- j^unctate, the 

 punctures much finer and denser along the external margins of the 

 abdominal segments; legs slightly robust, femur nearly smooth, the 

 punctures fine and widely separated, tibiae a little more coarsely 

 and densely punctured. Habitat: Jamaica (Kerreman's Collection). 



No specimens have been seen by the writer which would agree Avith 

 the above description, so the species has been placed in the key solely 

 upon the characters given in the -original description. 



POLYCESTA GOSSEI Waterhouse 



Polycesta gossei Wateuhouse, Ann. and Mag. Nat. Hist., ser. 7, vol. 14 

 1904, pp. 2.37-25S.— Kekeemans, Mon. Bupr., vol. 1, 1906, p. 499. 



The following is a copy of Waterhouse's original description : 



Elongate-oblong, much flattened; green; elytra ferruginous, shaded with 

 green at the suture. Thorax at the widest scarcely wider than the elytra, 

 only slightly angular at the sides, obliquely narrowed in front, very slightly 

 narrowed posteriorly ; green, sliaded with purple-coppei-y at the base. Disk 

 lightly impressed ; the punctures rather coarse, very close, and rather confused, 

 rather smaller at the sides, with two spots at the base which have only a few 

 punctures. Elytra subparallel, with a not very distinct costa near the scutelluni 

 extending about a quarter the length of the elytra. There are two other very 

 distinct smooth costae. The foveae which form the double lines are very regu- 

 lar and somewhat round. Beyond the second complete costa there are four 

 rows of regular somewhat round foveae or large punctures. The underside is a 



