CERAMBYCID^. 



49o 



the segments, with the first pair of stigmata placed on tlie 

 eides of the mesothorax. It is found in dead beacli trees. 



Tlie Orthosoma unicolor Drur}' (Fig. 477) is a light bay col- 

 ored beetle found fl3'ing from the middle of July until Septem- • 

 ber. We have found the larva (Fig. 478) in the rot- 

 ten stumps of the pine, and in the Western States 

 Riley states that a larva (Fig. 479, head and tho- 

 rax seen from beneath), probably of this species, 

 eats the roots of the grape-vine, hollowing out and 

 sometimes severing the root aud killing the vine. 



Prionns hrevicornis Fabr. is a very large, not un- 

 common beetle, of an ovate shape and pitchy black 

 color, with short, thick jaws, and 

 antenniB about half as long as 

 the body. The larvae, Harris 

 states, are as thick as a man's 

 thumb, and are found in the 

 trunks and roots of the Balm of 

 Gilead and Lombardy po{)lar. ^'^- *"^- 



Fig. 479. Crossmlius pnlchrior Bland (Fig. 480), 



from Nebraska, is a pule reddish beetle, with the antennse, 

 head, base and the large mark on the disk of the elytra and 

 legs black. An allied form is Ehuria? Ulkel Bland 

 (Fig. 481, showing the sculpturing of the head) which is 

 described as coming from Cape St. Lucas, Lower Cali- 

 fornia. 



The larva of Stenoconis pvtator Peck (Fig. 482 ; a, 

 larva, just about transforming; &, pupa) nearl}^ ampu- ■^'^■*^" 

 tates the branches of the black and white oaks. After becoming 

 mature in the trunk, and just before inidergo- 

 ing its transformations, it gnaws off a branch 

 Avhich falls to the ground, containing the larva, 

 which changes to a beetle in midsummer, and 

 Fig. 481. jj^yg i^s ggg xiear the axilla of a leaf stalk or 



small stem. The beetle is a very slender one, with antennse 

 longer than the body in the males, the third and fourth joints 

 of which are tipped with a small spine or thorn. It is dull 

 brown, with gray spots. The Banded hickory borer, Chion 

 (Cerasphorus) ductus Drury, makes long galleries in the 



