1864.] GOO 



smaller ones between the eye-cases, — and a pair on the anterior leg-cases. 

 Eye-cases with a tuberculated ridge. Antenn?e-cases quite prominent, 

 with a granulation on each joint. Tongue-case buried and not visible, 

 the leg and wing-cases meeting at their tips. Stigmata, except the 

 first, which is nearly closed, quite oval. The seventh, eighth and ninth 

 segments with deep incisures, angulated posteriorly, acutely granulated, 

 and encircled on their posterior margin with a row of spines, sub-obso- 

 lete inferiorly and superiorly. The tenth, eleventh and twelfth seg- 

 ments contracted laterally and flattened inferiorly, — the eleventh seg- 

 ment spined on the carination. The terminal segment ending in a 

 broad, flat, rugose, truncate projection. 1 % . 



Ellema Harrtsii Clemens. 



Larva. 2 in. long, .23 in. broad. Sub-cylindrical, tapering slightly 

 anteriorly, and the last two segments quite tapering. Haad, size of first 

 segment, gi'anulated, flattened anteriorly, sub-triangular, with an im- 

 pressed medial line, and straight yellow lateral lines terminating at the 

 apex in two black granulations, and bordered interiorly above with 

 black. Body grass-green. Subdorsal and lateral bands yellow. Sub- 

 stigmatal stripe bordering the stigmata, white, enlarged on the central 

 portions of the segments. Between the subdorsal and substigmatal 

 stripes, — on the fourth and fifth segments veutrally, — and exteriorly to 

 the legs and prolegs, dotted on the annulations with paler green or 

 yellow. On the vascular line, a series of crimson spots on the anterior 

 of the segment, commencing usually on the fourth, — the first small, 

 sometimes double — the anterior ones triangular or lozenge-shaped, regu- 

 larly increasing in size and extending over more of the segment — the 

 posterior ones quadrangular, and uniting on the last two segments in a 

 stripe. A ventral stripe of rose-color, commencing at the third pair of 

 legs, widening as it proceeds, and embracing the prolegs. No caudal 

 horn. Caudal shield granulated, and edged with white. Stigmata 

 oval. 



I have usually taken the larva about the middle of September, be- 

 neath, or ascending the trunks of the White Pine, {Pinus strobus} from 

 the leaves of which it seems liable, when near its maturity, to be shaken 

 by high winds. 



The Fa2)a is chesnut brown, with a rough, not produced head-ease. 



