INSECTS AFFECTING PARK AND WOODLAND TREES 



437 



The thorax is also different in that it is dilated, [)yriform, with the anterior 



narrower part much shorter than the posterior. 



Description. The beetle has been described by Harris as follows : 



A little pale brown beetle, variegated with gray on the sides. Its 

 snout is short, broad, and slightly furrowed in the middle ; there are three 

 blackish stripes on the thorax, between which are two 

 of a light gray color ; the wing covers have a broad 

 stripe of light gray on the outer side, edged within by 

 a slender blackish line, and sending two short oblique 

 branches almost across each wing cover; and the fore 

 legs are larger than the others. Length from ' « to 

 '/s of an inch. 



The larva of this form has been characterized by 

 Packard, as like that of the plum weevil. It makes 

 a smaller gallery than Eupsalis minuta Drury, 

 and according to Harris, lives on the trunks of white 

 oaks. It has been recorded on white oak by Dr 

 Hamilton in southwestern Pennsylvania, and by Dr 

 Smith in New Jersey, who states that it occurs through- 

 out the state in the trunks of white oak and also on beech. 



Distribution. This species ranges from New York to Texas and has 

 been recorded from a number of eastern localities. 



Fig. 96 



Sesia rubristigma Kellicott 



A black clear wing moth with red-spotted wings and yellow-banded legs and 

 abdomen may be reared from oak galls. 



This species occurs in New York, Ohio and Iowa, and was bred from 



the galls of Andricus cornigerus on Ouercus palustris by 



the late Dr Kellicott, moths being obtained in June and July. 



Male. Head blue black, orbits pure white, palpi wqth basal joints 

 black, second joint black except the tip, which is yellow, as is the whole of 

 the third joint. Antennae black. Collar yellow. Thorax black with a 

 yellow mark posteriorly and a yellow patch on each side below. Abdomen 

 black with a narrow yellow band on the second and last segments, and a 

 broad one on the fourth segment encircling the body; first segment with a 

 spot on each side. Anal tuft black with a narrow yellow line on each side. 



