NORTH AMERICAN BUPRESTID BEETLES 79 



Agrilus geminatus Say, Trans. Amer. Philos. Soc, vol. 6, new ser., 1836, 

 p. 162.— Sturm, Catal. Kafer Sammlung, 1843, p. 63.— LeConte, Trans. 

 Amer. Philos. Soc, vol. 11, new ser., 1859, p. 250 ; Say's Writings, vol. 2, 

 pp. 595-596 (Bailliere Bros. ed., 1859; Gassino and Co. ed., 1883).— 

 Crotch, Proc. Acad. Nat. Sci. Phila., vol. 25, 1873, p. 92. — Horn, Trans. 

 Amer. Ent. Soc.. vol. 18, 1891, pp. 287, 334.— Chamberlin, Cat. Bupres- 

 tidae, 1926, p. 61 (part). 



Agrilus assimilis Sturm, Catal. Kafer Sammluug. 1843, p. 63 (no descrip- 

 tion ) . 



Male. — Form resembling otiosus Say, and moderately shining; 

 antennae greenish black; head greenish blue, becoming slightly 

 aeneous on the occiput ; pronotum aeneo-olivaeeous at middle, becom- 

 ing more greenish toward the sides; elytra piceous, with a feeble 

 aeneous tinge; beneath dark bronzy green, and more shining than 

 above. 



Head with the front wide, nearly flat, equal in width at top and 

 bottom, the lateral margins feebly, arcuately expanded near middle, 

 and with an obsolete, longitudinal groove extending from occiput to 

 middle of front; surface densely granulose, rather densely, coarsely 

 punctate, becoming longitudinally rugose on the occiput, and 

 sparsel} 7 clothed on lower half with long, white hairs; epistoma 

 transverse between the antennae, and broadly, but not deeply, 

 arcuately emarginate in front; antennae extending slightly beyond 

 middle of pronotum, serrate from the fourth joint, and the outer 

 joints about as wide as long; eyes large, broadly oblong, and about 

 equally rounded above and beneath. 



Pronotum one-third wider than long, base and apex about equal in 

 width, and widest along apical half ; sides nearly parallel from apical 

 angles to middle, then arcuately narrow r ed to the posterior angles, 

 which are nearly rectangular ; when viewed from the side the mar- 

 ginal and submarginal carinae are feebly sinuate, rather broadly 

 separated anteriorly, and connected to each other near the posterior 

 angles; anterior margin strongly sinuate, with the median lobe 

 strongly, broadly rounded ; base strongly, transversely bisinuate, with 

 the median lobe feebly produced, and arcuately emarginate in front 

 of scutellum ; disk moderately convex, with two round, moderately 

 deep depressions arranged longitudinally at middle, a broad, oblique 

 depression along lateral margins, and with short, obsolete, prehu- 

 meral carinae; surface finely, densely granulose, feebly, transversely 

 rugose, and with numerous coarse punctures between the rugae. 

 Scutellum strongly, transversely carinate, and the surface obsoletely 

 reticulate. 



Elytra slightly w T ider than pronotum at base; and about equal in 

 width at base and just behind middle: sides parallel for a short 

 distance behind base, broadly, arcuately constricted in front of 

 middle, broadly, arcuately expanded behind the middle, then obliquely 



