49 



in colour. The head and thorax are black ; the antennae twice as long as the body, and 

 pale, with the tip of each joint black. The yellowish elytra have a black transverse 

 spot behind the scutel, and a broad, angulated, black band behind the middle. In front 

 of this band are several short black lines, and between it and the tips are black dots. 

 This species received its name from Fitch, because it was captured upon oak trees by 

 him, and believed to live upon them. This appears to be all that can be learnt of their 

 history. All of my specimens have been captured upon hickory, either on the bark of 

 felled trees, or among the foliage of living ones. 



No. 33. Hyperylatys aspersus (Say) is nearly one-fourth of an inch in length, and of 

 an ashy-grey colour, with the upper surface sprinkled with small black dots, and with 

 an interrupted black band behind the middle of the elytra. It is reported b y Schwarz 

 as boring in dry twigs of Populus monilifera at Columbus, Texas ; the perfect insects 

 being found throughout the spring and summer. It is not uncommon here upon the 

 bitter-hickory in company with Nos. 30, 31, and 32« 



No. 34. Ecyrus dasycerus (Say) is of nearly the same size and resembles somewhat 

 in shape the Spotted Leptostylus (No. 27). The thorax has feebly rounded sides, without 

 any tubercle, or angulated spine, as in the preceding four species. The pubescence is 

 close and short, and the beetle is of a brownish or greyish -brown colour, with a some- 

 what mottled appearance. The antennas are as long, or a little longer, than the body. 

 It is one of the species bred from hickory by Dr. LeConte. 



No. 35. Eupogonius vestitus (Say) has been bred from hickory by Kiley. It is about 

 one-third of an inch in length, of a chestnut-red colour, mottled with short yellowish 

 pubescence, and clothed (as its name indicates) above with longer dark hairs arising 

 from punctures in the surface. The head and thorax are darker and more closely 

 punctured than the elytra. The legs and antennae are also hairy, the latter being as 

 long as the body. The only specimens which I have taken were found upon wild rasp- 

 berry bushes. 



No. 36. Oncideres cingulatus (Say) is a species of very curious and 

 interesting habits. When the female desires to deposit her eggs she 

 does so in punctures made in the bark of small branches or twigs, 

 Q usually from one-fourth to one-half of an inch in diameter. After 

 e this operation, or before it (according to different authorities), she 

 gnaws a ring just below where the eggs are deposited ; so girdling the 

 ^ twig that it usually breakes off during the winter storms and falls to the 

 c ground. Fig. 18 shows the beetle in the act of thus girdling a slender 

 branch. Where the twig fails to break off, it is nevertheless killed, 

 and the larvae feed in the dead wood. The beetle is about six-tenths 

 of an inch long, with cylindrical unarmed thorax, and antenna longer 

 than the body. Its colour is a greyish-brown, and it has a broad 

 grey band across the elytra covering their middle third. It is widely 

 known as the *' Twig-girdler," and infests a variety of trees, including 

 the apple and pear. 



Fig. 18. No. 37. Saperda discoidea Fab. belongs to the same genus as 



the Striped-borer of the apple, and is of similar shape, but smaller. 

 The colour varies from brown to black, the males being the darker. The pubescence 

 with which the head, thorax and under surface is clothed also varies from yellowish 

 to grey. It appears to be very rare in this vicinity, but is, I believe, more common in 

 western Ontario. Eeported by Fitch and Eiley as boring in hickory, and also bred 

 therefrom by Dr. LeConte. 



The next beetle belongs to the Chrysomelidse, a family containing many species, 

 feeding upon the foliage of plants and doing serious damage. Among them may be 

 mentioned the potato-beetle, cucumber-beetle and grapevine flea-beetle. A number of 

 species must undoubtedly feed more or less upon the hickory ; but none are enumerated 

 in Packard's Bulletin, and I have not been able to find notices of any elsewhere. 

 Unfortunately my own notes in this direction are so scanty that I can only find a record 

 of one species. 



No. 38. Systena marginalis (111.) is a small, elongated beetle of a lemon-yellow 



