426 [November 



racles, each of these four sanguineous stripes being equal in breadth to one- 

 tenth of the length over the back from proleg to proleg, and the three pale 

 greenish brown stripes between them being each twice as broad as they are; 

 the sanguineous stripes fading out on the anterior submargin of joint 12, and the 

 remaining part of 12 being greenish yellow. Spiracles large, vertically elongate, 

 and black edged by yellowish. On joint 1 behind the head 6 equidistant black 

 tubercles, the outer one pointed at tip, and beneath them a lateral black thorn, 

 all 8 transversely arranged. Joints 2 — 11 all with fi transversely-arranged, 

 medial, smooth, acute, black thorns, .03 — .05 inch long and sometimes with a 

 few white granules towards their base, two thorns placed between the dorsal 

 -sanguineous stripes, one lateral one just outside each dorsal sanguineous stripe, 

 and another lateral one in tlie lateral sanguineous stripe. On joint 2 the two 

 dorsal thorns are replaced by long, slender, recurved, smooth, obtuse, black 

 horns directed forwards, .20 inch long with a few white granules on their lower 

 half; and on joint 3 the two dorsal thorns are acutely bifid at tip. On joints 

 2 — 5 and 10, in addition to the above 6 thorns, there is another one beneath the 

 lateral sanguineous stripe, so that these joints have 8 thorns, all transversely 

 arranged. Joint 12 with one central, dorsal, bifurcate thorn, similar to the two 

 dorsal ones on joint 3, one lateral one on the edge of the superior surface of the 

 joint, and another lateral one below the line of the lateral sanguineous stripe, 

 all 5 black with a few basal white granules and arranged transversely on the 

 anterior submargin, and behind them, half-way to the tip of the lateral edge of 

 the superior surface of the joint, a single black thorn, before and behind whicli 

 are a lew acute whitish granules, and at the tip two greenish yellow thorns 

 tipped with black and directed backwards. Venter very pale greenish brown. 

 Legs greenish yellow, the claws brown-black ; prolegs pale greenish brown, 

 with a large brown-black spot (ui their lower exterior surface. — Described from 

 two living specimens. Food-plant oak. 



Dryocampa rubicunda F'abr. Larva. (Described by J. A. Lintner.) Length 

 1.70 inch. Head reddish-brown; eyes on a crescent black spot. Body cylin 

 drical, apple-green, closely dotted with minute, whitish, acute granulations, 

 with a darker green narrow dorsal stripe, and broader subdorsal, lateral and 

 stigmatal stripes, the stigmatal stripe less distinct than the others. Segment 1 

 with four black tubercles on the collar, the central ones transversely oval, the 

 outer ones subtriangular, a spine in frontof the stigma and another at the base 

 of the leg. Segments 2 — 11 witii a substigmatal row of acute, prominent, black 

 spines pointing backwards: a lateral row of shorter ones on the inferior mar- 

 gin of tlie lateral stripe; a subdorsal row of still shorter ones on the superior 

 margin of the subdorsal stripe, [marked] with whitish at base superiorly; and 

 a ventral row on and in range with the external base of the legs and prolegs, 

 those of the prolegs (segments 6 — 9) quite small, the other seven (segments I — 5, 

 10 & 11) nearly as long as the substigmatal ones, except those on the terminal pair 

 of legs, of which there are two on the base of each, which are quite minute. All 

 of the above spines black, the three superior ones in range transversely on the 

 anterior portion of the segment, the substigmatal ones on the middle of the 

 segment. In addition to the above, from the 4th to the 12th segment inclusive. 



