166 THE CANADIAN ENTOMOLOGIST. 



rugose at base, otherwise finely sculptured ; legs dark brown, the small 

 tarsal joints ferruginous ; tibial scopa shining, of a lighter colour than the 

 pubescence of the body in general ; abdomen shining, bare, without hair- 

 bands ; segments 2 to 4 closely and finely punctured, depressed about 

 one-third apically; the depressions are tessellate, and contain only a few 

 scattered punctures ; anal fimbria dark fulvous. 



Milwaukee, Wis.; 2 9 specimens, May 29, 1902, from the flowers of 

 Viburnum lentago. In the type specimen the legs are dark brown ; in 

 the second specimen the legs are inclined to ferruginous. 



Atidrena albo/oveata, n. sp. V • — Length g mm.; black; pubescence 

 whitish, more or less yellowish on mesonotum ; facial quadrangle broader 

 than long ; head with short, sparse pubescence ; cheeks finely roughened, 

 with very small punctures ; front striato-punctate ; facial foveie very broad 

 above, narrowing gradually below and not unusually separated from eye ; 

 the pubescence of the fovese is silvery-white, appressed ; antennse robust, 

 black, somewhat testaceous beneath ; joint 5 shorter than 4, both 

 together longer than 3 ; clypeus nearly bare, shining, with close and 

 coarse punctures^ and an elevated impunctate line ; process of labrum 

 small, shining, lightly truncate; thorax with short, thin, erect pubescence; 

 mesonotum hardly shining, with fine punctures, which are close on the 

 sides, but sparse on the disc ; median and parapsidal grooves present, 

 the latter very distinct ; scutellum shining and more coarsely punctured 

 than the mesonotum ; tegulre piceous, a testaceous spot exteriorly; wings 

 yellowish-hyaline with rufo-testaceous nervures and stigma ; second 

 submarginal cell about one-third as long as the third, and receiving the 

 first recurrent nervure near the second transverse cubital nervure ; 

 enclosure of metathorax with longitudinal rugos, bordered by a low 

 transverse ridge ; legs very dark brown, covered with griseous hairs ; on 

 the inner surface of the basal joints of the tarsi the pubescence is 

 yellowish ; segments of abdomen depressed about one-third apically, 

 closely and finely punctured throughout ; there are thin apical fascise of 

 whitish pubescence, which are interru|)ted in the middle on segments 2 

 and 3 ; anal fimbria light fulvous, sparse. 



Milwaukee, Wis.; 7 $ specimens, June 15 and 16, 1902, on flowers 

 of Angelica atropurpurea. This species belongs to the genus Trac/iati- 

 drena, Rob. It is rather variable ; in some of the specimens the 

 pubescence is light ochraceous, and the hind tibiae and tarsi are 

 ferruginous. 



