458 



COLEOPTERA. 



'\ 



.1 



slender, and the species are generally long, flattened beetles 

 of very tough thick consistence, and are found on flowers, op 

 sunning tliemselves on the barlv of trees in midsummer. The 

 larvae are flattened footless grubs, with the 

 prothorrtcic ring greatly enlarged. 



In Chalcophora the antennal pores are dif- 

 fused on the sides of the joints, or only on 

 the lower margin ; the mesosternal 

 suture is indistinct ; the antennae are 

 inserted in small fovete, and the pos- 

 terior tarsi have the fii'st joint elon- 

 gated. C. Virginiensis Drur}' is one 

 of our most common species, and 

 may be seen fl3'ing about pine trees 

 in hot days in May and June. Its 

 larva bores into pines, often proving ^ 

 very injurious. Fig. 4i5. 



Dicerca is noted for having the tips of 

 the elj'tra lengthened out and diverging 

 from each other. Dicerca divaricata Say is 

 frequently met with ; it is smoother than 

 usual and highly polished with a 

 bronzed hue. The elytra are 

 marked with numerous fine irregu- 

 lar impressed lines and small ob- 

 long square elevated blaclv spots. 

 The larvae attack the wild cherry 

 and the garden cherry and peach. 

 Dicerca lurida Fabr. is found on 

 the trunks and limbs of the 

 hickory. 

 The genus Chrysobothris differs in having the 

 antennae inserted at the inner extremity of two short 

 oblique grooves, by which the front is narrowed ; 

 the anterior femora are strongly toothed, the third 

 joint of the tarsi is truncate, while in the hind tarsi the first 

 joint is elongated. The species are rather broad and flattened, 

 vwith impressed bands and spots on the elytra. Chrysobothris 

 femorata Fabr. (Fig. 414; a, larva; Fig. 415, larva of the 



Fig. 416. 



Fia-. 417. 



