1913.] NATURAL SCIENCES OF PHILADELPHIA. 433 



russet."*^ Lateral lobes of pronotum broadly barred with clove 

 brown, the immediate ventral margin of the general coloration of the 

 insect. Tegmina with dorsal field of male translucent bistre, with 

 discoidal vein narrowly outlined in ivory white; dorsal field of female 

 bistre with a tawny suffusion, the median vein pale yellowish; lateral 

 field in both sexes clove brown. Ovipositor very dark Vandyke 

 brown. 



As has been noted, the males are usually darker than the females 

 and in consequence have the abdomen wholly clove brown, while 

 in the females this portion of the body is usually bistre, more or less 

 suffused with tawny. In a few of the specimens of darkest coloration 

 the light markings on the head are, as would be expected, considerably 

 obscured. 



Distribution. — The present species is distributed over the Upper 

 Austral Zone of the eastern United States and has been taken from 

 Flatbush, L. I., N. Y., southward through New Jersey, Pennsylvania, 

 Maryland, and Virginia, as far as Raleigh, N. C, and westward 

 through Ohio and Indiana to Illinois. 



Biological Notes. — This is a secretive species which is almost always 

 found among leaves and about logs in woods, particularly in damp 

 situations. In such places colonies of considerable size are some- 

 times to be found, but unless special effort is made to locate these, 

 the little insects in most cases wholly escape the notice of the col- 

 lector. 



This is one of the species of Nemobius in which the reduction of the 

 tegmina has reached an advanced stage, and we are consequently 

 not surprised to find no macropterous individuals in the series of 

 specimens before us. 



Synonymy. — No synonyms of the present species have been erected. 

 Specimens of the diminutive and peculiarly colored type of fasciatus 

 discussed under that species have been referred by Walker on 

 Scudder's identification, and bj^ Rehn and Hebard to the present 

 species. 



Specimens Examined. — 81: 27 males, 53 females, and 1 nymph. 



Flatbush, Long Island, New York, Sept. 30, 1890, (Zabriskie) 1 9 [Am. Mus. 

 Nat. Hist.] Normal. 



Staten Island, N. Y., Sept. 19, (Davis) 1 cf, 1 9 [Davis Collection]. Normal. 



■»3 This difference of coloration is due to the fact that the female is lighter than 

 the male, this is usually the case in the present species. The series before us 

 indicates that, in maculatus as in fasciatus, the lightest portion of the maxillary 

 palpi is the proximal portion of the penultimate segment. In pale specimens 

 the light coloration extends from the apex of the segment which precedes the 

 penultimate to the base of the terminal segment. 



