214 THE CANADIAN ENTOMOLOGIST. 



used where his names overthrow a genus proposed or adopted by myself. 

 Mis-statements are made to sustain this view, as, for instance, whe-n Cres- 

 sonia is made synonymous with Polyptic/ius, whereas we originally showed 

 that Juglandis was cited by Hubner with a number of species not pro- 

 perly associated with it, and no name had yet been used for one species 

 which is unique as to structure and has no congener ; Mr. Strecker's 

 Fallens being based on the pale female variety, and Mr. Butler's Robinsonii 

 being only large specimens of our somewhat variable and most interesting 

 insect, first described by Abbot and Smith. 



Genus Pseudohazis G. & R. 



Mr. Henry Edwards, who has made many interesting observations of 

 the larvae of Californian moths, informs me that he knows the larvae of 

 both Egianterma and Hera ( - Pica), and that they are unquestionably 

 different. The synonymy adopted in my " New Check List " is taken 

 from an article of mine published some years ago in the Canadian 

 Entomologist. Doubleday's specimen, described by Harris, is presum- 

 ably the same as that deposited by him in the British Museum and made 

 afterwards the type of Pica. Audubon's figures have no real bearing on 

 the synonymy of the two forms. 



Genus Euleucophaeus Pack. 



Eyes naked ; clypeus moderately broad, with coarse dependant vesti- 

 ture. Male antennae pectinate to the tips, median vein three branched. 

 Wings entire. Forewings pointed at tips ; outer margin even. I cannot 

 separate Tricolor generically from Yavapai and Maia. We may follow 

 Dr. Packard and regard the insect as a faded species, owing its color to 

 its peculiar environment, but it is a faded Hemileuca. The type of Maia 

 and Nevadensis departs too little to consider it different ; the head is im- 

 perceptibly more sunken, the naked eyes almost lost under the dependant 

 vestiture. The pattern of Tricolor essentially agrees with that of Yavapai. 

 I should therefore consider Tricolor, Yavapai., Jmio, Diana, Grotei, Neva- 

 densis and Maia congeneric and refer them all to Hemileuca. After care- 

 fully examining the satiny white Leucop/iaeiis Neuvwegeni Hy. Edw., one of 

 our most beautiful Bombyces, I find that the head is freer, more promi- 

 nent than in Hemileuca, the front a little narrower, the vestiture shorter 

 and not so overhanging. The male antennae are provided with shorter 

 pectinations. They are in both sexes testaceous, while in Tr/^d'^r they are 

 brown-black as in the other Hemileiicac. The pattern of ornamentation 



