CERAMBYCID7E. 



497 



bore in ;ill directions through the tree. Ostcn Sackcn de- 

 scribes the larva of C. 2^ctus Drury, the Ilickoiy-tree borer 

 (Fig. 485; a, larva; &, 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, (7. robin )' Forster (Fig. 486, 

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

 pictus "in having much longer and stouter an- 

 tenme and in having its bocty 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 (7. 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 Acrocinus, 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. 

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

 mining the bark of the prickly-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 



