324 ENTOMOLOGICAL NEWS. [July, 'o8 



Skinner and Mr. Fox for examining Cresson's type of IV. 

 deprcssa, and reporting the characters given above. All these 

 insects have simple mandibles ; Mr. Viereck kindly examined 

 Cresson's type of depressa in respect to its mandibles some 

 years ago. 



N. depressicauda agrees with the description of hoodiana 

 (Proc. Phila. Acad., 1903, p. 608) in practically every char- 

 acter except those given in the table. The third submarginal 

 cell, however, is less narrowed above. 



N. skinncri is quite a dark insect, with the middle of face 

 and front (not involving the clypeus) black ; flagellum strongly 

 dusky, but clear red at extreme apex ; third antennal joint a 

 little shorter than fourth ; second abdominal segment with a 

 large yellow mark on each side, third with j*ellow dots ; apical 

 and basal margins of the segments infuscated ; pygidial plate 

 broad, but not so broad at apex as that of N. depressiuscula ; 

 basal nervure going a moderate distance basad oft. in. 



The type has the upper half of the second transverso-cubital 

 wanting on both side. 



Numerical Distribution of Some Insects. 

 By OWEN SHOEMAKER PAXSON, Devon, Pa. 



The following notes were compiled during the summer of 

 1905, excepting in a very few instances as stated. In record- 

 ing them, I walked a mile and a quarter from home to a small 

 pond and back again over the same route. Thus day after 

 day I confined myself almost exclusively to this ground. It 

 consisted of about one-quarter mile of macadamized roads, 

 five-eighths of untilled fields and one-eighth of plowed land 

 in corn, one-quarter in woods and the usual surroundings of 

 a small pond on the edge of a copse. 



I think the scarcity of some species in my list is alone ac- 

 countable by the fact of their comparative or almost total se- 

 clusion in nature. The Coleoptera are represented so well on 

 account of the fact that they are my favorite order, and con- 

 sequently were pursued more closely and continuously. Even' 

 here, however, there are many instances where their ways or 



