226 ENTOMOLOGICAL NEWS. [May, 'lO 



Notes on Oncideres texana Horn in Georgia : 



Oviposition. 

 By A. A. GIRAULT. 



The following notes may be useful : 



On October 14, 1906, at Myrtle, Georgia, on a large planta- 

 tion, a row of three-year-old pecan trees, in a small grove, was 

 noticed to have occasional branches neatly cut off, resembling 

 the work of a beaver in miniature. A single specimen of the 

 forementioned Cerambycid was found at work, already having 

 partially girdled a branch. These branches already cut off were 

 found under the trees, on the ground. They measured in diam- 

 eter ii and 12 mm. (14 branches). Each branch, and also the 

 one in process of being cut off, contained a number of isolated, 

 small, roundish cavities, leading to the egg and which opened 

 into longitudinal, flat grooves just beneath the bark, measuring 

 on the average 4.20 mm. in length, not very much longer than 

 the egg itself. These egg cavities were generally placed at the 

 nodes, to one side of the leaf insertion and the last one was at 

 the top end of the severed branch, or near it. There was but a 

 single egg cavity at each node and under each cavity, generally, 

 there were many, short, transverse cuts in the bark resembling 

 transverse striae. These branches found on the ground, all re- 

 cently severed, contained from 10 to 18 eggs, according to their 

 length ; usually there were no egg cavities at those nodes which 

 were near to the basal or severed end of the branches. The 

 cavities were closed with some mucilaginous substance, which 

 may have been exuded sap. A few other girdled branches, 

 containing eggs, as with those found on the ground, were still 

 hanging to the trees, but were completely girdled and dead 01 

 dying. In many cases (one direct observation), a noticeable 

 denuded area was found at the upper end of the girdled twig, 

 eaten by the female beetle during resting periods. This area 

 sometimes extended out onto the petioles of the terminal leaves. 



In regard to the eggs themselves. Eleven ( 1 1 ) eggs deposit- 

 ed on October 13 and 14, contained perfect embryos and were 

 hatching on November 24 and 25, making a period of embry- 



