Entomological Contributions. 141 



only on their posterior half. Ground color pale gra}", with brown 

 markings. Vascular line composed of brown dots. Subdorsal line 

 brown, with its margins darker brown, the darker shade of which, on 

 the posterior wiiiikles of the segments, presents a maculate appear- 

 ance. Laterally are irreguUir linings of brown dots, interrupted on 

 the fourth segment, giving to that ring a whitish appearance by con- 

 trast. Trapezoidal spots (of Guenee) inconspicuous but discernible 

 witli a magnifier. Stigmata moderately oval, annulated with brown. 

 Legs long, white, striped with pale brown, bearing a few white hairs. 

 Prolegs long, gray; those of the eighth and ninth segments with a 

 fuscous longitudinal line, and with a black line on the crown of each 

 planta. Anal shield with a transverse row of four setiferous papillae 

 anteriorly, and four on its posterior curve, margined below with 

 black. Ventral region conspicuously marked with a subelliptical 

 black spot of about one-half the diameter of the body, on the posterior 

 portion of each segment. 



The larva was apparently full grown when captured. It refused 

 the food which was oftered it, not even tasting of the leaves, and died 

 without undergoing transformation. 



As so small a number of the larvae of our numerous species of 

 Catocalas have been described, the above description is presented in 

 the hope that it may be identified by some collector. 



