THE INSECTS OF NEW JERSEY. 429 



S. gordius Cram. Essex and Union Co. V-VII (div); Hopatcong (Pm) ; 

 probably throughout the State and locally not rare. Mr. Brehme 

 reports eggs V-VII and larvae until frost on huckleberry, bayberry 

 and birch. Other recorded food plants are ash, apple, privet, &c. 



S. luscitiosa Clem. Essex Co. V, 20-VI, 20 (div); Passaic VII, 29 

 (Wrms) ; Elizabeth V, 20-VI, 25, second hatch about VIII, 1, no eggs 

 or larvae from these (Bz). Eggs are recorded on willow from V, 16 

 (Br) to VI, 21 (Wrms) ; larvae until late July. 



S. chersis Hbn. G. d., V-VIII, local and nowhere common. Eggs are 

 found VII, 22-VIII, 11 and larvsa from VII, 15-X, 2 (Wrms). Food 

 plants are lilac and ash. 



S. eremitus Hbn. G. d., and occasionally not rare; the larva in August 

 on pepper, mountain mint (Br), wild bergamot and Salvia. 



S. plebeius Fab. Essex Co. VI (div); Hoboken VIII (Kr) ; Elizabeth VII 

 (Bz) ; Staten Island V-VII; and probably g. d. The larvae feed on the 

 trumpet vine (Tecoma radicans), "Bignonia" and "Passiflora." 



DOLBA Wlk. 



D. hylaeus Dru. Throughout the State, but local. Essex Co. VI-VIII 

 (div); Woodbridge VI (Wrms); Paterson (Gr); Lakehurst VI, 16 (Ds). 

 Eggs VI, VII, larvae up to VIII, 17 (div). Feeds on black alder, sweet 

 fern and "Prinos" ; larva feeds very fast and reaches its full growth in 

 20 days (Br). 



CHL/ENOGRAMMA Sm. 



C. jasminearum Bdv. Hasbrouck Hts. (Wrms); Hewitt VII (Ds) ; Essex; 

 Co. (div). 



CERATOMIA Harr. 



C. amyntor Hbn. Throughout the State VI and VII. Mr. Brehme reports 

 eggs VI and VII and larvae until October on elm, linden and birch. 

 The caterpillars differ from all the other Sphinges by having four 

 little thoracic horns. 



C. undulosa Wlk. Generally distributed and not rare. Essex Co. V-VIII 

 (div); Elizabeth VI-VIII (Bz) ; Staten Island V-VIII (Ds) ; Lake 

 Hopatcong (Pm) ; tJloucester (Lt) ; 5-mile beach VI (Haim). Eggs 

 VI and VII, larvse until VIII (Br), on lilac, privet, ash and locust. 



C. catalpae Bdv. Throughout the State, wherever the Catalpa occurs. 

 Since 1900 this species has invaded the State from the South, spread- 

 ing first along the Delaware and gradually extending until it has 

 reached all parts of the State. The larvae are gaudy black and yellow 

 and feed in colonies, sometimes sufficient to defoliate a large tree in 

 a few days. In nurseries great injury has been done, and active 

 measures are necessary to kill them off. There are two broods, and 

 larvae occur from July until September. Adults are found in May 



