AMERICAN COLEOPTERA. 1<»7 



from the mass of material before me, to. follow Mr. Crotch in the sup- 

 pression of a number of species under the name xneoguster L. et (jr., he 

 having chosen for the aggregate a name posterior to that by three years. 



In the following list will be found one species hitherto unknown to 

 our fauna, salicis Fab., which has probably been introduced. There can 

 be no doubt of the capture of these specimens in Kansas. Had they 

 been taken near the Atlantic coast in or near any of our commercial 

 cities, their occurrence would have been mentioned, but the name not 

 introduced in our lists. 



The following synoptic table and the short descriptions will, it is hoped, 

 enable our students to identify their species. 



Body depressed, oblong-oval. Last ventral segment not differing in sculpture 

 from the other segments. 

 Thorax transversely strigose at middle. 



Color bright blue, elytra except at base cupreous sjilicis Fab. 



Thorax uniformly sculptured, punctured or reticulate. 

 Claws simple or merely a little broader at base. 



Elytra roughly granulate seneogaster L. et G. 



Elytra feebly sculptured, at most scabrous. 



Elytra finely granulate, subopaque. Body above and beneath bright 

 green with a tendency in the elytra to become olivaceous. 



deleta Lee. 

 Elytra scabrous, feebly shining. Body above and beneath uniform 



brownish-bronze vii'idifrons Gory. 



Elytra scarcely wrinkled. Body nearly black with a slight purplish 

 lustre, front and sides of thorax, broadly, cupreous or aeneous. 



\ iridicornis Say. 

 Claws broadly toothed at base. 



Elytra moderately shining, surface not granular cyanella Gory. 



Elytra subopaque, surface iinely granular quercata Fab. 



Body cuneiform, Agriloid. Last ventral segment conspicuously more coarsely 

 punctured. Claws slender flavimaiia Gory. 



A. salicis Fab. —Form rather broad, depressed, color bright blue, elytra 

 bright coppery, blue at base. Head densely punctured. Thorax nearly twice 

 as wide as long, sides irregularly arcuate, hind angles distinct, disc moderately 

 convex, broadly concave each side of middle, median line moderately Impressed, 

 coarsely punctured at the sides and in front, finely strigose at middle and near 

 the base, color bright blue with a darker somewhat velvety space on each side. 

 Elytra granulate-punctate, color bright coppery with a triangular space extend- 

 ing across the base and nearly one-third along the suture. Prothorax and body 

 beneath densely punctured, abdomen rather densely rugose at base, smoother near 

 the tip. Claws slender, simple. Length .2*5 — .28 inch; 11.5— 7 mm. 



This species differs from all those strictly native to our fauna by the 

 brilliancy of its color. In form it resembles closely that variety of the 

 next species known as expansa. 



I have seen but two specimens, collected by Dr. II. A. Brous, at 



