82 



PSYCHE. 



[Ju 



of the head and pronotum. The whigs 

 are usually yellow, often pale yellowish- 

 white, sometimes orange or even red. 

 This is our rarest Oedipodine, and 

 the only one which I have not met in 

 tiie field in an extended experience in 

 collecting the New England locusts. 

 Reported from Norway, Me., by Smith, 

 and' eastern Mass. by Scudder, nothing 



is recorded concerning the date of cap- 

 ture or character of the locality where 

 found. It probably occurs, however, 

 in localities similar to those fi'equented 

 by its congener. Numerous specimens 

 which I refer to this species were found 

 by Mr. .S. W. Denton in Ohio and 

 Illinois in midsummer. 



THE LARVA OF LYCOMORPHA PHOLUS. 



BV HARRISON G. DYAB, NEW YORK. 



1S39. Harris, Sillimaii's Journ. Sci. Arts. 

 XXXVI, 318. 



1S62. Harris, Ins. Inj. veg. 341. 



1S69. Melslieimer, Harris" ent. corresp. p. 

 112. 



1SS2. IJackard, Papilio III, iSi. 



1S96. Dyar, Proc. Boston soc. nat. liist., 

 XXVII, 136. 



Harris states tliat the larva lives on lichens 

 growing on rocks. 



Melsheimer found them on lichens on the 

 trunks of hickory trees. 



The full grown larvae occurred to me not 

 uncommonly on an old stone fence at Jeffer- 

 son Highlands, N. H. in the middle of June. 

 Eggs were obtained a month later. 



Egg. Laid singly, jjdherent. Oblately 

 spheroidal, the lower half more flattened 

 than the upper, both well rounded ; a little 

 elongated in one diameter, but only just per- 

 ceptible. No true reticulations, but the sur- 

 face is distinctly flattened in hexagonal areas, 

 the edges of which are not defined into eleva- 

 tions, but form simple angles of the surface. 

 These areas are rather large in proportion to 

 the egg, regular. Surface a little granular. 

 Color shining dark bluish green. Diameter 

 .5 mm. 



Stag,- I. Head bilobed, black; widtii .3 

 miu. Body all whitish, the hairs long and 

 pale; tubercles concolorous. The hairs are 

 barbuled and arise singly from the small 



tubercles, normal, subprimaries absent. On 

 the thorax seta ii b is distinctly present, not 

 weak; i a, i b and ii a in line, rather remote. 

 The head is blackish with sutures inky black. 

 Length of larva 1.5 mm. 



Mature larva. Gray, dotted with pale 

 green with thin, very long, blackish hairs. 

 Head bilobed, clypeus large, lower part pale; 

 brown with two pale green, narrow, trans- 

 verse, irregular lines; hairs short, white; 

 width 1.5 mm. Body rather flattened, 

 brown gr.ay with many irregularly triangu- 

 lar, transversely streaked patches; a gemin- 

 ate, rather large, anterior segmental, dorsal, 

 pale yellow one on joints 5 to 11 is most dis- 

 tinct, the others whitish, smaller and con- 

 fused. Legs pale, two setae on the obscurely 

 corneous plate. I have described the other 

 setae. 



The spottings seem to represent broken 

 ad-dorsal, lateral, suprastigmatal and sub- 

 stigmatal lines. The coloration closely re- 

 sembles the lichen covered rocks, so that the 

 larvae are only seen on close examination. 



Cocoon. A fine arched thin web on one 

 side of a stone. 



Pupa. Delicate, thin shelled, pale brown. 

 Smooth, not tapering much till the anal seg- 

 ments, compact, motionless, though two in- 

 cisures stretch out somewhat when the moth 

 emerges. Anal end smooth, no trace of 

 cremaster. Cases compact, the leg and an- 



