CERAMBYCID^. 



497 



Fis:. 485. 



bore in all directions through the tree. Osten Sacken de- 

 scribes the larva of C. pictus Drurj^, the Hickorj^-tree borer 

 (Fig. 485; a, larva; 6, pupa), as being "six to seven-tenths 

 of an inch in length, being rather long, somewhat flattened 

 club-shaped, the thoracic segments being considerably broader 

 than the abdominal ones, but at 

 the same time distinctly flattened 

 above and below." The pupa has a 

 numerous pointed granulations 

 on the prothorax, and similar 

 sharp spines on the abdominal 

 segments. " On the penultimate 

 segments, these projections are larger and recurved anteriorly 

 at the tip ; there are six in a row near the posterior margin, 

 and two others more anteriorly. The last segment has four 

 similar projections in a row." The male of the 

 Locust tree borer, G. robinice Forster (Fig. 486, 

 (?), according to Walsh, differs from that of C. 

 pictus "in having much longer and stouter an- 

 tennae and in having its bodj^ tapered behind to 

 a blunt point," while the females "are not dis- 

 tinguishable at all." It does great injury to the 

 Locust tree, and appears in the beetle state in September, 

 while C. pictus^ the Hickory tree borer, appears in June. C 

 araneiformis Oliv. (Fig. 487) has been detected on a wharf in 

 Philadelphia ; it was first described as coming from 

 St. Domingo. 



The Long- handed Acrociniis^ A. longimanus Fabr. 

 (Fig. 488, larva, natural size), is a gigantic insect, 

 allied to Prionus, but with enormously developed fore 

 legs, the whole body, including the fore legs, when out- 

 stretched measuring ten inches ; it is brown, beautifully 

 banded with red and buff". M. Salle has found the larva ^^^' *^^" 

 at Cordova, Mexico, under the bark of a Ficus. It grows 

 larger in Brazil. Leiopus is a diminutive ally of Lamia. Dr. 

 Shimer has detected the larva of L. xanthoxyli Shimer, under- 

 mining the bark of the pricklj^^-ash, when the wood has recently 

 died. It is a footless borer, "of whitish and pink orange 

 colors, about one-fourth of an inch long." In the burrows 

 32 



Fig. 486. 



