220 ACADEMY OF NATURAL SCIENCES 



GALLERUCA Geoff. Leach. 



1. Q. CORYLI. — Pale yellowish, testaceous ; elytra bifasciate 

 with blue. 



Inhabits the United States. Illinois. 



Galleruca corijli J. F. Melsheimer's letter to me. 



Body pale yellowish-testaceous : head with an impressed line 

 between the antennae : antennae blackish : labrum hirsute : man- 

 dibles black at tip : thorax transversely concave in the middle ; 

 anterior angles subacute ; posterior ones rounded : scutel rounded 

 at tip : elytra somewhat dilated behind the middle, with numerous, 

 minute punctures, a much dilated blue band at base, and a still 

 larger one at tip : wings black. 



Var. a. Pale yellowish-testaceous, immaculate. 



Length more than half an inch. 



A very large species ; it is considerably dilated behind, and 

 has probably considerable affinity with the genus Adorium, but 

 the terminal joint of the palpi is not truncated. It occurs in 

 Maryland [456] and Virginia, on the banks of the Missouri, 

 and J. P. Melsheimer informs me that it is so numerous in some 

 parts of Virginia, that it completely defoliates, in a short time, 

 the Hazel, ( Corylus americanus) upon which it feeds. 



[A species of Gcelomera. — Lec] 



2. G. TUBERCULATA. — Dull reddish-brown ; a slight tubercle 

 at the anterior and posterior angles. 



Inhabits Missouri. 



Body dull reddish-brown, immaculate, with prostrate hairs : 

 autenufe black, rufous at three basal incisures : thorax with a 

 much dilated, slightly indented spot each side, and an inconspicu- 

 ous, central line ; edge slightly emarginated each side of the pos- 

 terior angles, which, with the anterior angles, are somewhat 

 elevated, and resemble slight tubercles : elytra irregularly punc- 

 tured : knees, tibia, and tarsi black. 



Length one-fourth of an inch. 



This species is remarkable by its dull, and, with the exception 

 of the antennae and feet, uniform reddish-brown color ; the two 

 emarginations near the posterior thoracic angles are so obtuse as 

 to be little more than truncations ; the lateral one of which pro- 



[Vol. III. 



