286 UNITED STATES NATIONAL MUSEUM BULLETIN 276 



It is possible that Packard returned the type(s) to Henry Edwards, 

 but a check of their correspondence which is filed in the American 

 Museum of Natural History has been made through the cooperation 

 of Mr. F. Martin Brown and Dr. Frederick H. Rindge, and no mention 

 of Clisiocampa calif ornica was found in any letters dated between 14 

 January 1869 and 23 October 1890. Dr. Rindge says it is apparent 

 that Packard returned many specimens to Henry Edwards, but in no 

 case was there any listing of the actual specimens or species that were 

 returned. Therefore, it seems very unlikely that any reference to 

 Clisiocampa calif ornica would be found in Packard's pre- 1869 corre- 

 spondence with Henry Edwards if it still exists. 



Judging from the original description, it seems most likely that 

 Packard had one male and one female before him when he described 

 californicum, since he does not mention any color variations such as a 

 predominantly yellow male in Henry Edwards' collection in the 

 American Museum of Natural History. Also, Packard gives measure- 

 ments for a male and a female, indicating that he had no other speci- 

 mens before him. 



Henry Edwards must have known what californicum looked like, 

 since he sent the specimens to Packard. As his specimens bearing the 

 No. "101" label were identified as Clisiocampa calif ornica by him, the 

 most logical type candidate is one of his "101" specimens, especially 

 since the locality (Alameda Co., California) is well within the range 

 of what has been generally regarded as M. californicum up to the present 

 time. 



As far as presently known there are nine Henry Edwards "101" 

 specimens in existence, but there could easily be others since four of 

 these are in the American Museum of Natural History, two in the 

 Strecker collection at the Chicago Museum of Natural History, two 

 in the New York State Museum, and one in the Museum of Compara- 

 tive Zoology. None of these bears any of Packard's labels. Since no 

 specimens of Malacosoma bearing Packard's labels are known, it seems 

 best to designate a type from Henry Edwards' "101" specimens. 

 Therefore, a male in the AMNH which fits Packard's description most 

 closely and is in nearly perfect condition is designated as the neotype 

 of Malacosoma californicum (Packard) . See the section on M. californicum 

 californicum (Packard) for the description and data for this type specimen. 



Malacosoma constrictum constrictum (Henry Edwards) 



In 1874 Henry Edwards described the larva, chrysalis, and cocoon 

 of M. constrictum constrictum under the name ^^Clisiocampa constricta 

 Stretch n. sp." This description fits c. constrictum larvae quite closely, 



