OAK-BORERS. 71 



retracted ; 6 very small 3-jointed thoracic legs, the terminal joint being a mere bristle ; 

 stigmata quite distinct and brown, the first pair much the largest, between the fold 

 of joints 2 and 3 ; the others on anterior fifth of joints 4-11, the last pair more dorsal 

 than the rest. Head pale yellow, darker around raoi^th ; rounded, more or less bent 

 over the breast, with sparse, stiff, pale hairs springing from elevated points ; ocelli, 

 none ; antennse not visible, unless a dusky prominence lying close between mandibles 

 and maxilliB be called such ; labium small, with two depressions and other inequali- 

 ties, the margins slightly angular, allowing the jaws to closely fit around it; jaws 

 stout, triangular, the inner margin produced at middle into a larger and smaller tooth, 

 and with a slight excavation near tip ; maxillae long, with but a short, homy cardinal 

 piece ; the palpi apparently 2-jointed and with difficulty resolved, on account of three 

 or four other prominences around them ; garnished on the inside with a close row of 

 stiff hairs and on the outside with two stouter hairs; labium large, oboval, the palpi 

 placed in front and 2-jointed. 



Pupa. — Average length 0.40 inch, with the antennae curled back over the thorax, 

 the seven or eight terminal joints each with a more or less distinct, forwardly-directed, 

 brown thorn ; the snout lying on the breast and varying according to sex ; abdominal 

 joints with a more or less distinct row of small thorns on the posterior dorsal edge, 

 the last joint with a more prominent thorn directed backwards in a line with the 

 body. (Riley.) 



10. The gray-sided oak weevil. 



Pandeletitia hilaris (Herbst). 



Order Coleoptera ; Family Curculionid^. 



Making a smaller burrow than that of the Northern Brenthian, a worm like that of 

 the plum weevil and changing to a gray weevil, found on the leaves 

 from May to September. 



Beyond the fact stated by Harris that the larva lives 

 in the trunks of white oaks, on which the beetles occur 

 from late in May to September, we know nothing of this T 

 insect. 



The beetle. — A little pale-brown beetle; variegated with gray upon 

 the sides. Its snout is short, broad, and slightly furrowed in the 

 middle; there are three blackish stripes on the thorax, between F\g. 21.— Pandele- 

 which are two of a light-gray color ; the wing-covers have a broad Smith, del. 

 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 one-eighth to one-fifth of 

 an inch. (Harris.) 



11. The quercitron bark-borer. 



Grajihisurus fasciatus (De Geer). 



Order Coleoptera ; Family Cerambycid^. 



Feeding upon and destroying the quercitron bark of newly-felled trees, forming 

 large tracks tilled with worm-dust, a white, footless grub about 0.60 inch long, and 

 with a transverse oval tawny-yellow spot on the middle of each wing above and be- 

 low ; in June transforming to a long-horned beetle about one-half an inch long, of 

 an ash-gray color sprinkled with blackish spots and punctures, and back of the mid- 

 dle of its wing-covers an irregular oblique black band; the female with a straight 

 awl-like ovipositor nearly one-quarter of an inch in length. (Fitch.) 



