REVIEWS AND BOOK NOTICES. 763 
figures of species (with cuts showing the venation of many genera), 
for the most part never before illustrated, or those only figured in 
costly works. The “Illustrations” will probably extend to about 
30 parts, each containing one or more colored plates. Many new 
Californian species, some of striking interest, are already figured, 
with good descriptions both of the adult and the larva. Among the 
most important are three new species of Alypia from California ; 
four species of a beautiful new genus, Kodiosoma, said to be allied 
to Phragmatobia, the larva of which is said by Dr. Behr to bear 
“a striking resemblance to that of Syntomis and the cocoon to 
that of Halesidota; several new species of that elegant genus 
Arctia, two remarkable species of Sthenopis, a new form allied to 
Hemileuca Maia, and a new Gastropacha, and Notodonta. 
The author shows quite conclusively that Epicallia guttata is but ` 
a variety of E. virginalis, as the larvee of the two forms do not vary. 
We also have a description of the larva of Arachnis picta, with 
an interesting account of its habits. The account of the singular 
genus Phryganidia, regarded as a Psycid by the reviewer, is con- 
sidered by Mr. Stretch as probably a Zygænid, as “the transfor- 
mations of P. Californica, on which this genus is founded, is so 
dissimilar to those of the true Psychiinz, that I remove the genus 
to its present position though with some hesitation, and chiefly 
because I feel unable to assign it a more satisfactory position. 
Not only does the larva, which has some resemblance to Endryas 
construct no ‘sac,’ but it does not even construct a cocoon of any 
kind, and the pupa is naked and suspended by the tail.” We had 
compared this form with the European genus Heterogynis, but the 
author remarks that the latter is removed by many European 
writers to the Zygenide. As the larvee are abundant, sometimes 
= Stripping live oaks of their foliage, we hope to receive speci- 
mens of the insect in all its stages and study it anew. The larva 
of Halesidota Agassizii is described for the first time, and that of 
Drepana siculifer noticed briefly. 
As to the specific distinctness of Eupupia Americana and E. 
caja, we are now inclined to regard the two forms as climatal 
varieties of a single circumpolar species which runs down both 
. ; sides of the American continent and on the European side of the 
„ eastern hemisphere. 
= As we are writing this notice, Part V comes to hand, with an 
excellent plate on which are figured three species (one new) of 
