CATALOGUE OF INSECTS. 



599 



TREMEX Jur. 



Fig. 282.— The Pigeon Tremex, T. columba : a, larva ; b, its head enlarged ; c, pupa of female ; 

 d, pupa of male ; e, female adult. 



T. columba Linn. The larva bores in the trunks of a variety of shade and 

 orchard trees throughout the State ; sometimes causing considerable 

 injury. It is popularly known as the "pigeon Tremex" and no prac- 

 tical method of dealing with it is known. As it usually attacks weak or 

 dying trees, however, we can lessen the danger of attack by keeping the 

 trees in good condition. 



T. sericeus Say. Pennsylvania (Ashm). 



Family LXXXII XIPHYDRIIDiE. 



Smaller species in which there is quite a long neck between the head and 

 thorax. 



BRACHYXIPHUS Philippi. 



B. rufiventris Cress Long Island (Ashm). 



XIPHYDRIA Latr. 



X. abdominalis Say. = albicornis Harr. Pennsylvania, Michigan to Texas 



(Cress). 



