242 Annals Entomological Society oj America [Vol. Ill, 



third four or five, the striae existing farther and farther dorsad on sub- 

 sequent segments, from the fifth caudad extending completely across 

 the dorsum. From the fifth .segment to the ultimate a band-like area 

 across dorsum marked aiJi)arently with coarser striae and distinctly 

 delimited laterally; on the more caudal segments the band extending 

 caudad a little beyond the usual limit of segments and presenting weak 

 crenations or dentations, the band farther cephalad on segment in 

 median and anterior region of body. 



Anal scutum in outline as seen from above with sides converging 

 caudad, nearly straight or but little incurved mesally; caudal margin 

 mesally emarginate. Two impressions extending from anterior margin 

 on each side of the middle and converging to meet in an acute angle at 

 a mesal point on the caudal emargination of plate. Papillae slender, 

 gradually acuminate. 



Each anal valve crossed longitudinally over dorsal portion by two 

 or three striations. The caudo-\'entral edge ncarh' straight, margined. 



Length, 10 mm. Greatest width 1.5 mm. 



Locality — Portland, Oregon (Aug., 1902). One female. 



FAMILY STRIARIIDAE. 



Striaria nazinta sp. nov. 



Body uniform light brown in color. Legs yellow. Antennae 

 white. 



Body cylindrical, gradually attenuated cephalad as well as caudad. 



First segment large, expanded on each side in a plate which extends 

 cephalad over lateral portion of head. Mesally the front margin is 

 straight or nearly so. Anterior border with a ridge-like elevation con- 

 tinuous laterally with edges of the lateral plates, the two ridges meet- 

 ing in a mesal elevation and at an angle open cephalad, the surface of 

 plate in front of this elevation obliquely descending to head, closely 

 tuberculate. On main area of plate each .side of the median line are 

 .six strongly elevated and rclativeh' thin carinac of which the one nearest 

 the meson is lower and begins farther cephalad than the next laterad; 

 the farthest laterad of these carinac is much lower and shorter than any 

 other and is the only one not attaining or nearly attaining the caudal 

 margin. Laterad and cephalad of the carinac and to the very edges of 

 the lateral plates, the segment is densely tuberculate. Between the 

 carinac the granules arc irregularly scattered, and relatively few, not in 

 definite rows, though thc\' ma\- usually be regarded as representing two 

 broken series in each interspace. 



Second segment with twelve dorsal and dorso-lateral carinac in 

 addition to the major lateral carinac, but crossing the entire width of 

 the major .sub-.segment and, as on all subsequent segments, more strongly 

 elevated at caudal ends. Lateral carinac or plates less strongly ex- 

 tended horizontally than the lateral plates of first but in general similar, 

 the lateral ])orlions less strongly granulate. 



Third and subsequent segments with twelve dorsal and lateral 

 carinac in addition to the lowermost pair, the latter not at all carried 



