Some Larwt: on Scrub Oak. 4'.) 



since when I beat the branches for them the next morning they 

 had all gone and none could be found. It is quite probable that 

 they drop from the foliage, and crawl into such shelter as they 

 can find for pupation. [No. 126]. 



(c) A SIMILAR, BUT SMALLER, MORE NARROWED AND ELON- 

 GATED SPECIES than THE preceding. Five usual pairs of pro- 

 legs, on segments 7 to 10, and 13. Two forms occur, which may 

 be the same species or not. They are both pale colored, with 

 more or less of a yellowish tinge, with a median longitudinal 

 brown stripe from anterior margin of mesothoracic segment to 

 posterior portion of twelfth segment. Head, dorsal shield of pro- 

 thoracic segment, and six thoracic legs subchitinous and yellow- 

 ish with pale brownish and black specks and markings. Head 

 notched behind, the anterior margin of prothoracic segment fit- 

 ting into the notch. Whole larva sparsely hairy, including head, 

 thoracic segments and venter; hairs arising from blackish dots. 

 Head and all the segments of nearly the same width, the last two 

 segments gradually and successively slightly narrowed. Seg- 

 ments nearly the same length. Dorsum of mesothoracic to anal 

 segments with three closely approximated and well defined longi- 

 tudinal brownish lines on each side of the median brown stripe. 

 Antennae are rather elongate and prominent, 3-jointed; basal 

 joint longest and stoutest, subconical, yellow; the second joint 

 brown, small; third joint very small, pale brownish. Spinneret 

 drawn out into an elongated point. One darker specimen shows 

 the usual pale brown markings on posterior portion of head 

 black. 



The other form differs principally in having only two of the 

 lateral lines, instead of three, on each side of median stripe, 

 though there are apparent gradations between. The bod}- is 

 somewhat stouter also. The head and prothoracic dorsum are 

 less speckled and marked. Length, 10 to 16 mm. 



Four specimens of the first form (including the longest and 

 shortest of above measurements), two of the second form, and 

 three of gradations between. May 23, 1891. Found under the 

 scrub oak bark with the preceding larger species. [No. 231]. 



(d) An orange- yellow and grayish, almost entirely 

 naked caterpillar. Five pairs of prolegs, on usual segments. 

 Three pairs of well developed thoracic legs, chitinous, orange- 



