234 



MEMOIRS OF THE XATIONAL ACADEMY OF SCIENCES. 



Fiti. 81.— Pujia of n riultlvtita. J 

 body. 



End »l 



a large oval wliiti.sh spot on the second and fourtli abdominal segments, and endin<;' on tlic liindiM- 

 edge of till' fourth, and beginning again on tlio. fiftli, then separating agiarn so as ti) inclose a long- 

 oval dorsal si)ace on abdominal .^^cgnicnts 5 to 8; then contract- 

 ing and ending on the surnnal plate between the bases of the 

 anal legs. 



Tlie oval white spots inclose two i)arall('l faint reddish nicdian 

 lines. The body is somewhat compressed, tapering to tlie end; 

 the anal legs arc long, outstretched, slender, with a reddish line 

 on the outside and cherry-red at ti])s. Sides of the body llesh- 

 colored, with reddish dots and short lines. Thoracic legs pale, 

 with a cherry red stripe on the outside. The middle abdominal 

 legs pale fle.sli, with a few short wavy reddish-i)ink lines and 

 specks on the outside. ' 



PI. XXXIII, tigs. 2, 2«, represent a larva from which 1 reaied 

 the moth, a female of normal appearance. 



Viqvi. — Body rather stout and thick, the head rounded, much 

 as usual, coarsely corrugated, with two very faintly indicated low 

 parallel vertical ridges between the eyes. The abdominal segments are sparsely and not very 

 coarsely punctured; the last three segments as usu;il, smooth and i)olishcd. I'.cliind the ineso- 

 scutuin are six square, fattened, dull, unpolished, black tubercles, not having any median impres- 

 sion to give them a double appearance (like that of Schizura leptinotdes). The cremaster ends iu 

 two stout spines, which are larger and stouter than in IT. hlunihtta, 

 and of (pute dilfereut shape, the terminal spine being bi-oad and some- 

 what foot-like, the end being square, with the heel pointing inward 

 and the toe upward at right angles to the main spine. Vestiges of 

 the anal legs rather prominent, rounded, smaller than in //. biunddto. 

 Vestiges of the sexual opening longer than in H. hiimduUt. Length, 

 19 mm. ' 



Habits. — The eggs were found at Brunswick, Me., as early as 

 July 3, and it hatched July 11 or 12. Other larva', as observed in 

 Maine, hatclied about the 8th to 10th of July, feeding on the underside 

 of the leaf, at first eating away a little irregular patch. Stage 1 lasts 

 nine days, Stage II probably four or five days. The last stage is 

 reached a month later, August t)-10; my belated individual occurred on the oak at Providence 

 as late as September 20 to 2-t. The larva has the habit of jerking its head rapidly from side to 

 side, as if vexed or to scare away some assailant. 



Fig. 82.— Pupa of Uete-rncampa (rutti- 

 rilla, 9- ■**'/'■ si'irncli'. 



' Dr. Dvar sends me tljo following account of a variety of C. piiltivifta larva (mature) : 



"I have twice found a peculiar variety of niittii'illa fouo at Woods Holl, Mass., one at Jeft'orson. X. II. i, in 

 which .'i large Itrown iloy«(il patch was retained in the la.st stage. The following is .i full descriiition of it: 



" Head oval, higher than wide, llattened in front, smooth, green ; a purplish hand on a whitish ground, prcicilcd 

 by a narrow black line from base of jaw to vertex, joining the one or the other side; a short, similar l)aiicl on I lie 

 posterior lateral angle of the head at ventral side; ocelli and jaws black; palid yellowish; width .about 3..") mm. 

 Body smooth, the minute, black, normal setio arising from whitish spots; .anal feet slender, slightly used. liody 

 .slightl.v smaller at the extremities, appearing enlarged centrall.v in the usual position of the larva. A broad white 

 subdorsal band, narrowly black-bordered above, broken on joints 2 and 11. Dorsal area .vellowish green, hitir.il 

 area haf-grcen. brown-dotted, spiracles salmon color. On antericu' edge of joint 'J a narrow yellow line, containing 

 two purple-brown spots. A narrow white dors.-il line edged witli black, linear to joint 1 ; on joint i> it divides into 

 thrc(\ all coming together again on joint S, forming an elliptical area; on joint !) it again divides, each .side bram h 

 joining the sul>dorsal line on joint 11 posteriority to the break, the central line running to joint 13. These lines are 

 yellowish white, scarcely black-bordered posteriorly to joint i. Hcsides theses normal markings are the following 

 dark purple brown patches: (1) a narrow obliciue linear sutiventral jiatch on joint 1 from base of foot njiward :ind 

 backward; (2) a subdorsal pyriform patch on joint 7 Ijctwecn the dorsal a:id subdorsal lines; (IJ) a single dorsal 

 cordate patch, the deju'ession anteriorly, situated on joint 8, diviiling the dors;il line and barely reaching the 

 sulidorsal. In front of this heart-shaped spot the junction of the dors.al lines forms a white spot. In the second 

 example these brown patches were somewhat larger, and there was iu addition a subventral patch above the foot ou 

 jgiuts 7 and 10, the latter sloping the other way from the one on joint 1." 



