308 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
virginica, the males coming to lights, and the females to "molasses 
traps, and both sexes frequent the same places. I have seen 
New England examples from Middlesex Fells, Sherborn, and 
Wellesley, Mass.; Lyme, and New Haven, Ct., and also a 
female from Edgartown, Martha's Vineyard, taken by Mr. C. W. 
Johnson, 
BicoLORED Wood-roach; Pennsylvania Wood-roach. 
Parcoblatta pensylvanica (DeGeer). 
Figs. 30, 36, 37. 
Blatta pensylvanica DeGeer, Mem. Hist. Ins., vol. 3, p. 537, pi. 44, fig. 4 
(1773). 
Ectobia borealis Beutenmuller, Bull. Amer. Mus. Nat. Hist., vol. 6, p. 
261 (1894). 
■ Blatta flavocincta Scudder, Boston Journ. Nat. Hist., vol. 7, p. 417 (1862). 
— Fernald, Orth. N. E., p. 135 (51 of sep.) (1888). 
Ischnoptera pensylvanica Scudder, Psyche, vol. 9, pp. 99, 119 (1900). — 
Walden, Bull. Geol. Nat. Hist. Surv. Ct., no. 16, p. 54 (1911). 
Phyllodromia borealis Scudder, Psyche, vol. 9, p. 100 (1900). 
Platamodes pensylvanica Scudder, Boston Journ. Nat. Hist., vol. 7, p. 417 
(1862). 
General color chestnut to dusky chestnut; the disk of the 
pronotum on the sides, sometimes on the front, and the costal 
margin of the tegmina on the basal half or two-thirds whitish 
yellow. 
Measurements. 
Tegmina 
Pronotum 
Hind tibia Antenna 
Length Width 
22-23 
4.4-5.4 5.7-7 
8-9 24-28 
9-11 
5-6 6-7 
6-6.5 18-20 mm. 
Male 25-28 
Female 16-19 
This species may be readily distinguished from our other New 
England forms by the yellow markings of the pronotum and 
tegmina, and in the female by the extent of the tegmina which 
cover two-thirds or more of the abdomen. 
It seems to be rare in eastern New England, very few speci- 
mens having been recorded. Hebard reports it from Front's 
Neck, Me., and Winthrop, Mass.; Walden from Mt. Carmel, Ct., 
June 18, July 10. I have a nymph, May 2; a female taken under 
burlap by E. J. Smith, no date; and a male, June 21, taken by 
C. A. Frost, all from Sherborn, Mass. On July 9, 1904, males, 
