12 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 77 



convex, and the elytra are abruptly dehiscent at the middle, with 

 the posterior half of each narrow, parallel, and the tip not terminat- 

 ing in a spine. 



ACYPHODERES AURULENTA (Kirby) 



Necydalis auruienta Kieby, Trans. Linn. Soc. London, vol. 12, 1818, p. 443. 

 Acyphoderes sericinus White, Cat. C@l. British Museum, pt. 8, 1855, p. 195. 



This species was described by Kirby (1818) from Brazil, and 

 White (1855) redescribed the same species under the name of seri- 

 cirms from the same country. In the United States National Museum 

 are two examples of this species which were identified as abdominaZis 

 Olivier. One of these examples is labeled Mayaguez, Porto Eico, 

 and the other one Cayey, Porto Rico, May 23, 1923, collected by 

 G. N. Wolcott. These two specimens show a slight variation from 

 the typical specimens from Brazil by not having the femora and 

 tibiae black in the middle, and by the elytra being without a furcate 

 black vitta on each side, but these specimens seem to be the extreme 

 light form of this species, and not sufficiently distinct to warrant a 

 new name. In a series examined from Brazil, all of the examples 

 have the black bands on the legs, but in a few of these examples the 

 furcate black vittae on the elytra are absent. 



This species is closely allied to dbdoTninalis Olivier, but that species 

 differs from auruienta in having the pronotum more sparsely pubes- 

 cent, and the elytra shining black, each with a short humeral vitta, 

 a small spot on each side of the scutellum, and the vitreous areas 

 pale yellow. The specimens listed as ahdominalis from Porto Rico 

 by Gahan,^ and Leng and Mutchler * are ^voh^lj auruienta (Kirby). 



ACTFHODERES RUFOFEMORATA. new species 



Female. — Form rather slender. Head, antennae, pronotum, and 

 scutellum black ; elytra pale yellow, vitreous, with well defined black 

 margins, which are considerably narrower along the sutural margins 

 except for a short distance behind the scutellum. Body beneath 

 black; anterior and middle legs black, except the femora which are 

 pale yellow at the base ; posterior legs black, the femora pale yellow 

 on basal half, with a black ring at beginning of club, which is bright 

 red. 



Head with the front long, feebly concave between the eyes, and 

 with a vague, narrow, longitudinal carina extending from occiput to 

 middle of front ; surface coarsely, irregularly punctate, and sparsely, 

 irregularly clothed with rather long, recumbent yellow hairs. Eyes 

 separated from each other on the front by about one-half the width 



•Trans. Ent. Soc. London, 1895, p. 111. 



* BuU. Amer. Mus. Nat. Hist., New York, vol. 37, 1917, p. 146. 



