MORGAN HEBARD HI 



The young of both sexes before us are dark in general coloration, 

 further resembling the adult female in cephalic contour. 



The remarkaljle ootheca is carried with suture laterad. It is 

 similar in form to that of P. fulvcscens, approximately 3.4 mm. in 

 width, with surface microscopically very finely granulate, and 

 vertical divisions weakh- defined and moderately well spaced, as 

 in that species. The suture is furnished with minute, regularly 

 and moderately well-spaced, acute-conical projections, as in fid- 

 vescens, but along each side runs a deeply inset, oval channel, al- 

 most closed above by the thin wall projecting from the base of the 

 suture and the lateral surface of the ootheca (see PI. I\\ figs. 11 

 and 12). This condition is not found in any other species of the 

 genus, for which the ootheca is known. 



It is of interest to note that at W'hitcmarsh. Pennsylvania, in a 

 low but heavy chestnut, oak and maple forest, where molasses 

 traps showed the species to be present in great numbers, search 

 for several hours at various times, on the ground in leaves and leaf 

 mould, under stones and under the bark of decaying chestnut 

 logs, failed to reveal a single specim.en of the insect. 



The known northern limits of the species are: the vicinity of 

 Boston, Massachusetts; Saginaw Bay, Michigan, and Iowa City. 

 Iowa. On the immediate Atlantic coast it has been found as far 

 south as Pablo Beach, Florida, but has not been recorded from 

 the Coastal Plain or Piedmont Plateau south of Raleigh, North 

 Carolina. It is distriluited to the southernmost limits of the 

 Appalachians, and has been taken as far southwestward of that 

 point as Opelika, Alabama. Its southwestward distribution is 

 imperfectly understood, owing to insufficiency of material, the 

 known limital records being Xash\-ille, Tennessee and Mountain 

 Grove, Missouri. 



Specimens Examined: 1245; 2;vS males, 994 females, 13 immature individuals. 



Massachusetts, i juv. c^, i small juv.. cot y pes oi Ectobia lithophila Scudder; 1 d", 

 type of Platamodes unicolor Scudder, [all M. C. Z.]. 



Wellesley, Mass., VII, 16 to VIII, 1902 to 1914, (A. P. Morse), i cT, 5 9, [Morse 

 Cln.]. 



Sherborn, Mass.. (E. J. Smith; light trap), 4 o"" ; \"III, 1896 and 1910, 2 9, 

 I with ootheca, [Morse Cln.]. 



Milton, Mass., \'I, 26, 1878, i 9, [M. C. Z.]. 



Wollaston, Mass.. (F. H. Sprague), 2 c^, [M. C. Z.|. 



MEM. .\M. EXT. SOC, 2. 



