Ls()2.] 209 



S . Smaller and more robust than the 9 , the lateral thoracic tubercle 

 is not visible, the elytra are more roughly and deeply punctured and some- 

 what rugose, the rugosity extending over the disk and apex alike, and the 

 last dorsal segment of the abdomen does not extend beyond the elytra 

 which are strongly and somewhat abruptly deflexed posteriorly. Length 

 9 lines. 



Were it not for the elongate form, this species might jirove to be a va- 

 riety of M. r/rissiim Lee, which I have not seen, and which is said to re- 

 semble 31. anmdatum Say, but the species just described seems to have 

 no particular similarity with Say's species, the much more elongate form, 

 the diflferently shaped thorax, and the narrow form of the elytra, caused by 

 their suddenly deflexed sides, give this species altogether a different ap- 

 pearance. I do not, therefore, see any other but a generic similarity be- 

 tween them. 



For a pair of this fine insect, the Society is indebted to Mr. Henry 

 Ulke. 



Desmocerus elongatus n. sp. 



Obscure bluish-black, densely punctured ; elytra clothed with golden- 

 yellow hairs. 



Hah. Virginia. 

 9 . Body dull bluish-black, elongate, densely punctured. Head black, ir- 

 regularly and sparsely punctured ; a deep longitudinal sulcus on the vertex. 

 Antennae clothed with short black hairs; third, fourth and fifth joints 

 slightly nodose. Thorax uneven, transversely rugose; a rather deep im- 

 pression along the posterior margin ; lateral tubercle almost obsolete. Ely- 

 tra obscure greenish-blue, clothed with golden-yellow hairs which become 

 obsolete towards the tip; anterior portion deeply and closely punctured and 

 somewhat rugose ; posterior portion much more finely and regularly punc- 

 tured. Under surface bluish-black, shining, finely punctured and clothed 

 with short black hairs. Legs rather coarsely punctured and clothed with 

 short black hairs. Length nearly an inch. 



Should this species prove to be identical with D. paUiatus, it will cer- 

 tainly be a singular variety. The 3rd and 4th joints of the antenna3 are 

 scarcely more nodose than the 5th joint in paUiatus -, the body is more 

 linear and the elytra are entirely dull greenish-blue. It was collected in 

 Hampshire County. Virginia. 



