216 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



U. S. 10081r, and reared June 30, 1916, from maple collected 

 by N. T. Hunt, June 2, 1916, at Washington, D. C.; two males 

 recorded under Number Hopk. U. S. 9724, reared July 1, 1912, 

 from red maple (Acer rubrum) collected by F. C. Craighead June 

 8, 1912 at Charter Oak, Penna.; two females from Washington, 

 D. C., collected in July and August (Hubbard & Schwarz); one 

 male from Frankford, Ky., collected on August 8 (Soltau); one 

 female from Linglestown, Pennsylvania, collected August 2, 

 1911 on red maple tree, one female from Stoverdale, Pennsyl- 

 vania, collected August 25, 1911, and one female from High- 

 spire, Pennsylvania, reared July 7, 1910, from Norway Maple 

 (Acer platanoides) limb collected June 14, 1910 by the author. 

 This last record is the one recorded as quadrimaculatus in the 

 author's list of "Cerambvcidae from Harrisburg." (1912, Ent. 

 News, XXIII, p. 311). 



Paratypes No. 20626c and d from Charter Oak, Pennsylvania, 

 differs from the type by being lighter in color and not having 

 the markings quite as distinct, but this is due to the specimens 

 having been reared and are not fully colored. Paratype No. 

 20626f from Frankford, Kentucky, differs from the type by 

 having the thorax at the middle equal in width to the elytra at 

 base. 



This species is closely allied to quadrimaculatus Hald., from 

 which it differs by having the four spots on the thorax of sparse 

 white pubescence instead of dense yellow pubescence, by having 

 the antennae shorter, and also by its habit of making galls on 

 maple trees, while quadrimaculatus girdles the branches of various 

 trees similar to that of Elaphidion viUosum Fabr. 



COLOR DIMORPHISM IN SCHISTOCERCA DAMNIFICA 



SAUSS. 



BY A. N. CAUDELL. 



Color dimorphism in the Acrididae is not at all rare but in 

 most cases known to me this phenomenon is common to both 

 adult and immature forms. With the above grasshopper how- 

 ever it appears to be confined to the nymphal stages. The adults 

 of this common locust are always, so far as I have observed, 

 brown in color. The nymphs however occur about Washing- 

 ton in either a bright green color or brown, as in the adult. I 

 have bred numbers of both phases through and find the green 

 color to persist to the last stage nymphs, always disappearing 

 however with the maturing molt. 



