Packard.] 
92 
[May 7, 
It probably either belongs to a distinct section of the genus Hyper- 
chiria, from H. io , or may be the young of Hubner’s genus Gamelia. 
Owing to the dark skin the lateral abdominal glands are very 
conspicuous ; they are situated exactly as in H. io , on the same 
segments, being placed directly behind the first and seventh pair of 
abdominal spiracles. They are black at base, but the eversible por- 
tion is white, contrasting with the surrounding skin, and looks like 
an Actinia with its tentacles fully retracted. 
Eversible glands of Hemileuca yavapai Neumogen, from Arizona. 
— In a number of specimens of a species of this genus, which were 
collected in Southern Arizona by the Wheeler survey, Aug. 16, 
1874, these glands also occur. The alcoholic larvae are not now 
in a good state of preservation, but they appear to be very similar 
to the larva of H. yavapai Neum., paler, of which I have a colored 
drawing made for me by Mr. Bridgham with Mr. Neumogen’s kind 
permission. 
Behind each spiracle on the first and seventh abdominal segments 
there is a flat irregular, but often bean-shaped or broadly lunoid 
flesh-colored area; in it is a vertical slit very hard to find, through 
which the gland is undoubtedly everted. On dissection I find un- 
der the skin of this area a rather large spherical gland, with a 
pink ring surrounding the side towards the opening. I have ob- 
served these glands in twelve specimens of full size, and in two 
belonging to the previous stage. 
Eversible glands of Hemileuca maia (Drury). — It was only after 
repeated examinations of Hemileuca maia , that I was able to de- 
tect these glands. They are not mentioned by Dr. Lintner in his 
careful description of the earty stages, nor was I able to find them 
in a series of larvae of all five stages kindly loaned me by Dr. Ri- 
le}", with one exception of a larva of stage i in which I could de- 
tect a pale patch behind the spiracles on the first abdominal segment. 
But I was fortunately afterwards able to discover them in two blown 
specimens in my own collection. They occur just as in H. yavapai , 
but appear to be more irregular in outline and they are rather high- 
er than broad. They are also to be seen in a second blown specimen 
of stage iy ; the areas are dark, slightly paler than the skin, and 
smooth and polished on the surface. It was impossible with a good 
Tolies lens of high magnifying power to detect the slit through which 
the gland everts. It is most probable that they will be found in 
living larvae of each stage. 
It is to be observed that similar but about one-half smaller 
