NORTH AMERICAN BUPRESTID BEETLES 63 



inner ones turned inward and their apices touching. (Posterior 

 claws missing.) 



Length, 5.5 mm. ; width, 1.5 mm. 



Female. — Differs from the male in having the front of head slightly 

 broader, more convex, and of a dark reddish brown color; antennae 

 slightly shorter, and the outer joints slightly wider than long; pres- 

 ternum more sparsely punctured, and not clothed with long, erect 

 hairs at middle; prosternal lobe more deeply emarginate in front; 

 prosternal process with the sides parallel to behind the coxal cavities ; 

 abdomen slightly exposed above, and all of the tibiae without a tooth 

 at apex. 



Redescribed from the male type in the Purdue University collec- 

 tion. (This type has been donated to the United States National 

 Museum.) 



Type locality. — Kansas. 



Variations.— Among the specimens examined (type in United 

 States National Museum, three female paratypes in the Purdue 

 University collection, and a male and female paratype in the collec- 

 tion of J. N. Knull) no variation worthy of mention has been ob- 

 served. All of the specimens seen of this species are from the 

 original series labeled " Kan. T. B. A." 2 



The species is allied to masculinus Horn, but it can be distinguished 

 from that species in having the color on upper surface more brown- 

 ish, the first joint of the posterior tarsi shorter, a vague pubescent 

 vitta on each elytron, and in the male the long, erect pubescence on the 

 presternum extends along the middle for its entire length. The pubes- 

 cent vittae on elytra are only vaguely indicated, and specimens of 

 this species are probably confused in collections under masculinus, 

 but the length of the first joint of the posterior tarsi will separate 

 both sexes from that species. The species seems to be rare in collec- 

 tions, and nothing is known of its habits. 



Host. — Unknown . 



19. AGRILUS ARCUATUS (Say) 

 Figure 13 



Buprestis arcuata Say, Ann. Lye. Nat. Hist. New York, vol. 1. pt. 2, 1825, 

 p. 251. 



Agrilus arcuatus Say, Trans. Anier. Philos. Soc., vol. 6, new ser., 1836, 

 p. 162.— LeConte, Say's Writings, vol. 1, p. 387, vol. 2, p. 596 (Bailliere 

 Bros, ed., 1859; Cassino and Co. ed., 1883) ; Trans. Amer. Philos. Soc., 

 vol. 11, new ser., 1859, pp. 242-243 (erroneous identification, =cup> i- 

 collis Gory). — Pettit, Canad. Ent, vol. 2, 1870, p. 102. — Crotch, Proc. 



2 " T. B. A. Kan." found on many specimens in the entomological collections of this 

 country refer to T. B. Ashton, one of the pioneer entomologists of Kansas, and after his 

 death, in 1895, his collection was sold to Purdue University. (Knaus, Journ. Kansas Ent. 

 Soc, vol. 1, 1923, p. 19.) 



