A NEW SPECIES OF CHALCOPHORA (COLEOPTBRA- 

 BUPRBSTIDAl) FROM WISCONSIN. 



By Richard A. Muttkowski. 



Chalcophora melanotum. sp. nov. 



Male. Black. Length 22.1 mm. 



Head small, narrow (4.2 mm), the smooth elevations black; punc- 

 tures somewhat coarse, irregular, siib-cupreous, with a distinct luster ; 

 frontal depression triangular, as brevicoMs, but smaller and deeper, the 

 punctures in the depression finer and closer than to sides and greenish 

 in hue ; eyes somewhat prominent, antennse black ; labrum yellow, eniar- 

 ginate. 



Pronotum transverse (6.5 mm.), black; sides subparellel, faintly 

 widening toward apical third, then broadly rounded; at the extreme 

 base obtusely angulated ; median line elevated, smooth, the customary 

 sulcus on each side of it very shallow; the two lateral impressions 

 weak; punctuation irregular, but fine, dull sub-cupreous, without any 

 luster as on the head. 



Elytra 16 mm. long, 'wider than the prothorax (7.7 mm. at humeri, 

 8.1 at three-fifths), elevations shining black, the depressions finely 

 punctuate, very dull cupreous ; sutural groove attaining basal fourth, 

 then interrupted ; otherwise as usual ; apices with short spine. Held 

 at a distance the dorsum is black ; held within 6 inches from the eye 

 in lateral view, the dorsum appears streaked with deep brown. 



Beneath brassy sub-cupreous, the luster as distinct as in brevicol- 

 Us ; with fine white hairs on all plates which extends to the front of 

 the head around the eyes. Prosternum flat, wedge-shaped, sides straight, 

 with two straight sulci meeting opposite front coxae. Abdominal sul- 

 cus distinct, margined by smooth elevations, reaching apex of second 

 segment. Emargination of apical segment one third of width of base 

 of seginent and two fifths of length, rounded. Femora dull subcupre- 

 ous, tibiae and tarsi black ; tibiae with brassy punctures. 

 • Described from one male collected by Mr. Charles T. Brues, 

 while a member of the Milwaukee Museum Expedition to Apostle 



135 



