Elytra with cinereous or griseous pubescence; disc 

 more flattened, with less prominent carina?, less 

 strongly punctate. 

 * Head less strongly and more sparsely punc- 



tate, more strongly pubescent with gray or 

 yellow. 



a. Form slender, antennae long; head, an- 

 tennas, and elytra mostly black, with cine- 

 reous pubescence; elytra moderately, fine- 

 ly, and sparsely punctate 



ulmicola Chittn., n. sp. 

 aa. Form more robust, antennae shorter, black, 

 or partly yellow; head with yellow or 

 griseous pubescence; elytra largely yellow, 

 more strongly and densely punctate, with 

 very pale yellowish or griseous pubescence. 



tripundata Swed. 



"Oberea ulmicola Chittenden, n. sp. (PI. I., Fig. 1.) 



"Form slender. Head, antenna?, and elytra black, with 

 gray pubescence, becoming long and dense on the head, nearly, 

 obscuring the punctures, and darker plumbeous-gray on the 

 thorax. Antenna? slender, long, five-sixths of the length of the 

 entire insect. Head somewhat feebly and sparsely punctate, 

 with strongly defined median line, especially in the posterior 

 portion. Thorax yellow, callosities black, occasionally with a 

 smaller black antescutellar spot on each side; just above the 

 leg there is usually another variable black spot, either smaller 

 or much larger than the others. Elytra with basal portion on 

 each side of and including the scutellum, yellow, occasionally 

 with a longitudinal yellow streak on each elytron, extending 

 from the base nearly to the apex, which is emarginate and 

 sub-bidentate; the surface comparatively sparsely and feebly 

 punctate. Epipleura? yellow. Ventral surface usually yellow, 

 but occasionally with a portion of the thorax and of the second 

 and third abdominal segments and less frequently the first and 

 last segment, black. Punctuation very shallow, nearly obsolete 



