STUDIES IN THE AMERICAN BUPRESTID^ 93 



(d), or more densely and irregularly punctate, black, with orange 

 maculation along the eyes and with two or three small anterior spots 

 ( 9 ) ; prothorax trapezoidal, swollen laterally toward base, three-fourths 

 wider than long, the anterior and lateral margins near the apical angles 

 pale (J*), or with merely a spot under the angles pale (9); surface 

 rather coarsely, sparsely punctate, with several large irregular smooth 

 areas sublaterally and a broadly smooth median line, finely striate 

 subbasally; elytra three-fourths longer than wide, the sides parallel 

 and nearly straight for two-thirds, thence obUque, becoming nearly 

 straight to the apices, which are simply transversely truncate (9), or 

 obliquely so with the sutural angles more prominent (c?); surface with 

 deep but finely and very obscurely punctate striae, the intervals strongly 

 convex and very sparsely, not coarsely punctate, alternately only slightly 

 more so, except the sixth and eighth which are decidedly less convex 

 and more punctate though not densely, the former greatly broadening 

 over the humeral swelhng, the reddish-flavate spots two and three 

 alone well developed, vaguely subquadrate and feebly, divaricately 

 oblique outwardly, the first spot small, more internal and generally 

 comminuted, the fourth small and sometimes obsolete; under surface 

 sparsely pubescent, variably punctate, the abdomen deeply sulcate 

 basally, the four spots of the fourth segment subequidistant (9), or 

 with the two median very approximate (d^). Length 16. 5-18. 5 mm. 

 width 6.4-6.9 mm. New Mexico (unrecorded locality and Fort Win- 

 gate) alternans Lee. 



A — Form nearly as in alternans but much larger, with the elytra more 

 gradually narrowed and more produced posteriorly, the eyes rather 

 less prominent, the prothorax more inflated and rounded laterally in 

 nearly basal half, the sides thence more converging and straighter 

 to the apex. Length (9) 20.0 mm.; width 7.7 mm. Arizona 



(Walnut) conicicauda n. subsp. 



Form much more cuneate and more elongate, similarly convex, the upper 

 surface generally with a faint greenish- metallic lustre; head (cJ*, 9) 

 respectively as in alternans, except that the transverse posterior margin 

 of the solid binigronotate pale area of the former has a very small deep 

 median sinus; antennae (d^) scarcely attaining the thoracic base; eyes 

 but slightly prominent; prothorax less transverse but otherwise nearly 

 similar, with a much stronger impression before the scutellum; elytra 

 generally more sinuate at the sides near the middle, gradually oblique 

 posteriorly and slightly arcuate to the apical truncature, the outer angle 

 more obtuse, blunt; surface nearly as in alternans but with the reddish- 

 flavate pale spots much more developed, all four distinct, the first and 

 second generally united and sometimes also the outwardly and divari- 

 cately but notably more strongly oblique second and third spots; ab- 

 domen deeply sulcate at base, finely and sparsely to rather strongly and 

 more closely punctate, the pale spots frequently, and especially in the 

 male, wholly obsolete, excepting two rather large and irregular on the 

 last segment. Length 16. 7-18. 7 mm.; width 5.9-7.0 mm. California 

 to Washington State. [ = Ancylocheira (/i/ato/a Motsch., i litt.?]. 



laeviventris Lee. 



