74 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



Ptqju. — (PI. LVI, figs. 3,4.) According toJewett the pupa isat first brightgrccii. but changes 

 to jet black in a few hours. Bodj- nearl}' c_ylindrical, the anterior extremity being nearly 

 hemispherical and the posterior extremity tapering rapidly in the last two segments to a blunt 

 point, which is extended into a bipronged spine three-sixteenths of an inch long. "'The sur- 

 face of the hemispherical portion is studded with minute, sharp, triangular points. AVing cases 

 small, covering- only the sides and under surface of the anterior one-third of the pupa. Four of 

 the abdominal segments are separated by a broad, deep sulcus; the anterior and posterior margins 

 of these segments are armed with a row of minute, sharp spines." Length, 24 mm. Without 

 examples of the pupa:- of other species it is im]50ssible to correctly define these of the present 

 species. 



The eggs (in Ohio) were deposited May 26 and hatched May 31 (Jewett). 



Food i)I(ints. — Spiny locust {Gleditschia triacxinfJios)-, Kentucky coffee tree {Gymnoeladus 

 canad^nsu). 



Huhits. — The larvie in Ohio began to stop feeding June 20, entering the ground within a 

 few hours after ceasing to eat. "There they pupated within an oval cell lined with a thin cocoon 

 of silk, the first casting its skin on the 2I:th . . . Imagines began to appear on Julv 3, and had 

 nearly all emerged by July 10. The larva? pupate readily on the bottom of the breeding cage if 

 ground is not furnished them. In this case they build no cocoon." 



'' The insect is 3-])rooded here, hibernating in pupa. Although the large majority of each 

 brood follows the cycle of development as described, yet a few of each brood are much slower in 

 making their changes. Thus a few of the brood did not complete their growth till the end of 

 July, and three pupw formed June 26 are still alive (February 28), having hibernated. Other 

 pupa^ of the same brood disclosed their imagines at various periods during July and August. 

 This accounts for the fact that larva; in all stages of development may be found at anj- time 

 throughout the summer till frost kills their food plants, which are GIed!tschi(( triacanthoslj. 

 (honey locust or three-horned acacia) and GyinnocJadus canadensis LiSim. (Kentucky coffee tree)." 



Walsh, referring to the fact that he never saw the larva of Anisota senatorla assume a 

 sphingid attitude, states that that of ^4. hicoJor invariably assumes this attitude in repose, "clasp- 

 ing at the same time the under surface of the main rib of the honey-locust leaf with its prolegs, 

 so as to be overshadowed and concealed by the leaflets" (1. c, p. 294). 



Siinrmary of iJie life hisfonj. — The larva hatching Mav 31 lived four days before the first 

 moult, which occurred June 4. The duration of stage II is four days; of .stage III, ffve days; of 

 stage IV, four da3'8, and of stage V, and last, three daj's. Entering- the earth to pupate, it 

 remained in this state from twelve to thirteen days, the moths appearing from July 3 to 10. In 

 southern Ohio it is 3-brooded and hibernates as a pupa. 



A.X)E;LOCEFH;j\.LA QTJAr)RILINEA.T^ Grote and Robin.son. 



Adelocephala qiKtdriliiieata Grote and Kobinson, Trans. Amer. Ent. Soc, I, p. 11, PI. 1, fig. 2. — Druce, Biol. 

 Centr. Amer., Lep. Het., I, p. 171, June, 1886; II, p. 414, Mar., 1897. 



This rare species is very closely allied in the shape of the wings and markings to A. hicolor, 

 but differs, according to Grote and Robinson, in the simple antenna' and in the distinct lines of 

 the upper surface of the fore wings. 



Geographical disiribution. — Jalapa, Coatepec, Orizaba, Mexico; city of Guatemala, Cande- 

 lai'ia Mountains, Costa Rica (Druce). Dyar's List records it from the Mississippi Valley. 



Piijxi. — II. Edwards states that in shape it is vei-y like that of Anisota. but a little longer in 

 comparison. It is pitchy black throughout. The entire surface very rough, and covered with 

 minute raised spines. The two rows of teeth on five last abdominal segments well marked. On 

 top of the head, first segment behind the head case, are two raised, sliining. large, lilack tubercles. 

 The cremaster is very long, bifurcate, and extremely rough. Length, including the cremaster, 

 54 mm.; width. If, mm. (Ent. Amer., IV, p. 62). 



