380 ENTOMOLOGICAL SOCIETY 



Dr. Dyar showed specimens of Megalopyge krugii Dew., 

 collected by Mr. Busck in Porto Rico. The larva was described 

 by Dewitz in his original communication, but so briefly that the 

 following additional points may be noted. The shape is as in 

 M. crispata and the structure of the feet the same. The skin of 

 the mature larva is almost without pigment, only a faint broad 

 blackish dorsal band persisting on joints 3 to 7. It is nearly 

 covered by the tufts of hair, which are white. The hair is ap- 

 pressed and directed backward as in M. crispata, except that in 

 front, on joint 3, there is a longer erect tuft mixed with black 

 hair and posteriorly the dorsal hairs of joint 13 are elongated and 

 form a terminal tuft directed horizontally. The dorsal warts 

 (I-II) are elongated, their hairs meeting so as to leave no bare 

 dorsal space. The lateral warts (III) are of good size, the sub- 

 ventral ones (IV-V) small, while below these are the very small 

 and rudimentary hair tufts representing tubercles VI and VII. 

 The post spiracular eversible glands are present as in M. cris 

 pata. Young larvas were also collected by Mr. Busck. In these 

 the hair is much thinner, being finer, longer, and less tufted, and 

 more mixed with black, especially at the extremities. Besides 

 the anterior erect dorsal tuft there are a pair of smaller subdorsal 

 tufts composed of a few black hairs, and a few hairs between 

 these. There is a broad dorsal band of black pigment running 

 the whole length, nearly enclosing the dorsal warts. On joints 

 3-5 this band is reddish centrally, but posteriorly the white 

 dorsal hairs meet centrally, forming a diffuse crest. The warts 

 bear a number of short, spiny hairs (doubtless poisonous) 

 besides the long soft white hairs. The larvae were collected on 

 mangrove. 



Mr. Howard asked whether Mr. Busck had been stung by this 

 larva, and Mr. Busck replied that the first one which he found 

 had fallen on the back of his hand and produced severe pain and 

 inflammation which lasted for three days. 



The first paper of the evening was read by Mr. Schwarz and 

 consisted of a continuation of the Hubbard correspondence from 

 the Southwest. 



