two rows of minute black piliferous spots on each side, and all bearing a short light 
brown hair. Spiracles black. Underside of body same color as above. Length, 
16 mm. | 
Lives singly in a pyriform case made of frass between the terminal 
leaves of the branches of A/vrica certfera. 
Phoxopteris spirezfoliana, Cl. 
Head small, yellowish green, with small black spot on each side of the anterior 
portion, mouth parts pitchy black. Body yellowish green with two rows of piliferous 
spots of the same color along the dorsal region, and two rows on each side. Under- 
side same color as above. Length, 10 mm. 
Food plant, Spiraw opulifolia (Nine Bark). Draws together the 
leaf between two veins so as to produce a fold. Double brooded. June 
and Sept. Hibernates in a cocoon between leaves. 
Qe Se 
The habits of Goes and Oncideres. 
By, M: LE... Eire, 
On the Palisades near New York Goes pulchra, Hald., was taken by 
me last season under circumstances that were strikingly suggestive of the 
habits of Oncideres cingulata, Say, on Carya sp. with large buds, the 
same that are preferred by the Oncideres, I saw Goes at work on the 
twigs, cutting through the bark nearly all around (and a little deeper in 
some places), but very irregularly, not making acleanring. It impressed 
me that this must be done on purpose to kill the twig, with the intention 
of ovipositing on it, a well-known fact in regard to the girdler. The 
male was generally seen gnawing on the endbud of the same twig that 
the female was girdling, just as we so often see the pair of Oncideres to- 
gether. When we take into account the wonderful resemblance in color 
and form between these two, though systematically widely separated 
species, the likeness is still more remarkable though the Goes is twice 
the size of the Oncideres. I think this is a fine instance of analogy in 
protective resemblance, similarity in habits having independently wrought 
their results in leading both to resemble the same thing, the maculation 
of the Carya twig. Both seem to live in the larval state for two years ; 
in 1884, 1886 and 1888 Oncideres was very abundant, while not a single 
specimen could be found 1885 nor 1887. The species are not found to- 
gether; the Goes appear in the first days of July and are completely gone 
before the end of that month, while Ozczderes can not be seen before the 
last days of August and is abundant throughout September. This oc- 
currance of Oncideres so late in the season, when few collectors visit the 
branches of trees, accounts for its rarity in collections and my success in 
