Oc?., J975 Bulletin of the Brooklyn Entomological Society 79 



abdominal bristles scarcely pointed and blackish brown in color ; terminal 

 bristles pointed, brown, about equal in length to tube. 



Measurements of holotype : Length, 1.56 mm. ; head, length 0.200 mm., 

 width 0.193 mm.; prothorax, length 0.123 mm., width (inclusive of coxae) 

 0.308 mm. ; pterothorax, width 0.378 mm. ; abdomen, width 0.418 mm. ; tube, 

 length, 0.151 mm., width at base 0.069 mm., at apex 0.037 mm. 



Antennal segments i 2 



Length (/^) — 55 



Width (/J.) 33 30 



Total length of antenna, 0.420 mm. 



Male (niacroptcrous). — Length about 1.4 mm. Slightly smaller and more 

 slender than female. Upper lateral pair of bristles at apex of segment 9 

 of abdomen much shorter than basal width of tube, the lower lateral and 

 dorsal pairs of normal length. 



Measurements of allotype: Length 1.36 mm.; head, length 0.188 mm., 

 width 0.180 mm.; prothorax, length 0.108 mm., width (inclusive of coxae) 

 0.288 mm. ; pterothorax, width 0.327 mm. ; abdomen, width 0.349 m™- i tube, 

 length 0.151 mm., width at base 0.069 mm., at apex 0.033 rnm- 



Antennal segments 12345678 



Length (/^) — 50 59 59 54 5i 49 29 



Width (m) 29 28 28 31 30 28 22 13 



Total length of antenna, 0.378 mm. 



Described from one female and one male, the former taken 

 from Ostrya z'irginiana on Plummer Island, Maryland, April 28, 

 191 5, by L. O. Jackson; the latter taken from a leaf of Quercus 

 sp., at Great Falls, Maryland, May 23, 191 5, by the writer. 



The pale knees and the antennal coloration of this species are 

 unique in the genus, and the head is unusually short. 



LONG ISLAND COLLECTING NOTES. 



By Wm. T. Davis, New Brighton, Staten Island, N. Y. 



The Periodical Cicada from 1910 to 1914. 

 The seventeen-year cicada occurs on Long Island, N. Y., in 

 numbers at the most unexpected times. In June, 1910, they were 

 in great abundance in the Half Way Hollow Hills, as reported 

 in the Journal of the New York Entomological Society for De- 

 cember of that year. Brood No. i (1910) had not heretofore 



