NORTH AMERICAN BUPRESTID BEETLES 281 



Tibiae slender, anterior pair slightly arcuate, and the anterior and 

 middle pairs armed with a distinct tooth on inner margin at apex. 

 Posterior tarsi subequal in length to tibae, and the first joint as long 

 as the following two joints united. Tarsal claws dissimilar, anterior 

 and middle claws cleft near the tip, and the teeth nearly equal in 

 length; posterior claws cleft near middle, the inner tooth broad, 

 shorter than outer one, and not turned inward. 



Female. — Differs from the male in having the head reddish brown, 

 the rugae more or less bluish black on vertex and occiput, front 

 slightly wider, the lateral margins not quite so strongly constricted, 

 and the surface more strongly rugose on the front; first and second 

 abdominal segments strongly convex, not sulcate at middle, and 

 without long pubescence ; prosternum without long, erect pubescence 

 at middle ; tibiae unarmed at apex, and the tarsal claws similar on all 

 feet, cleft near middle, the inner tooth broad, shorter than the outer 

 one, and not turned inward. 



Length, 4-5.5 mm. ; width, 1-1.25 mm. 



Type locality. — Brownsville (Los Borregos), Tex. 



Type, allotype, and paratypes. — Cat. No. 41010, U.S.N.M. 



Described from 21 examples (one type), all from the type locality. 

 Type, allotype, and six paratypes collected April 30-May 24, 1904, by 

 H. S. Barber, one paratype collected February 24, 1909, by F. C. 

 Pratt, nine paratypes reared from Acacia famesiana collected by 

 H. S. Barber, and three paratypes under Hunter No. 1494, reared 

 May 18, 1908, from dead branches of Huisache (Acacia famesiana 

 (Linnaeus) Willdenow) collected March 19, 1908. 



This species is closely allied to dbductus Horn, but differs from it 

 in having the pronotum finely, transversely rugose on the disk, and 

 the sides parallel or obliquely narrowed from the apical angles to 

 behind the middle, then more strongly narrowed to the base, and the 

 epistoma deeply and arcuately emarginate in front, whereas in 

 ahductus the pronotum is coarsely, transversely rugose, the sides are 

 arcuately rounded near the middle, and the epistoma is only feebly 

 emarginate in front. The male genitalia are also quite distinct in the 

 two species. 



98. AGRILUS ABDUCTUS Horn 



Figure 74 



Agrilus alductus Horn, Trans. Amer. Ent. Soc, vol. 18, 1891, pp. 325-326.— 

 Chittenden, U. S. Dept. Agric, Div. Ent., Bull. 22, new ser., 1900, 

 p. 67.— Fall, Calif. Acad. Sci., Occasional Papers, no. 8. 1901. p. 241.— 

 Feost and Weiss, Canad. Ent., vol. 52, 1920, p. 222. — Chamberlin, Cat. 

 Buprestidae, 1926, p. 46. 



Female. — Form moderately elongate, rather strongly flattened 

 above, and feebly shining; head brownish cupreous, with a vague 



