88 ENTOMOLOGICAL SOCIETY 
I have long known of the eversible nature of these protuberances, and 
observed them first in 1873 on the larvae of Parorgyia clintonii Grote. In 
my descriptive notes of this species, made June 4, 1873, I referred to these 
glands on the middle of the back of joints 9 and 10 of the larva, comment- 
ing on their curious character and on their recalling in function the osma- 
terium of Papilio larvae; also to the fact that they are coral-red and with- 
out apparent odor. Later observations led me to believe that this note was 
inaccurate as to the odor, and that all larvae of both Orgyia and Parorgyia 
possess these tubercles, and that they are really scent-organs, like the 
osmaterium in Papilio. I have noticed quite a strong odor from those of 
Orgyia, and, in fact, a fine spray of liquid is sometimes thrown from them. 
I exhibit blown larvae of the European O. pudibunda and of Orgyia an- 
tiqua. This last species also occurs in this country, our specimens being 
somewhat smaller, on the average, than those of Europe. This larva 
shows two crimson-red eversible tubercles. 
I also exhibit, in addition to the common Orgyia leucostigma, blown 
specimens of O. gulosa Hy. Edw. and O. vetusta Bd., both of which I re- 
cently observed living in California, and both of which have the same 
crimson-red organs, and have been reared to the imago by Mr Koebele. 
I also exhibit blown larvae of a Parorgyia, which, from the bred speci- 
mens, I believe to be P. leucophcea Smith & Abbott. I have bred one 
male of this from the larva feeding on Persimmon. In an endeavor to 
determine my bred material in this genus, I have concluded that there are 
fewer species than have been made by Lepidopterists. The images vary 
considerably in details of coloration and markings, and it is quite prob- 
able that obliquata will prove to be synonymous with leucophcea. The 
larva, as figured by Smith and Abbott, is probably misleading, in having 
the dorsal tufts too conspicuously shown on joints 8, 9, and 10, for in my 
specimens they have been, as in other species of this genus, large and 
conspicuous on joints 4, 5, 6, and 7, inclusive, but far less so on the other 
joints. * 
I also exhibit various blown larvae of Parorgyia clintonii Gr. These 
vary in the color of the tufts according to state of growth, and there is also 
individual variation. My original specimens were found feeding on Honey 
Locust, but I have also found it on various other plants, as wild plum, elm, 
etc. Both these Parorgyia larvae show the same eversible glands, though 
they are less conspicuous than in Orgyia, on account of the greater den- 
sity of the hairs surrounding them. As to the synonymy of this species, 
my experience with the adolescent states leaves little doubt that clintonii 
is a synonym of achatina Sm. & Abb., and I question whether, with more 
complete knowledge, parallela and basiftava and even cinnamomea will 
not prove synonymous with the same species. 
FURTHER REMARKS ON PHENGODES. In connection with the remarks 
made at a previous meeting, I also exhibit a female of Phengodes laticollis 
received from Prof. Geo. F. Atkinson, of the University of North Caro- 
lina. This is an undoubted female, having attracted the male and laid 
