64 ENTOMOLOGICAL NEWS. [Feb., '04 



Wisconsin Bees: Genus Andrena. 



By S. Graenicher, Milwaukee, Wis. 



The three species described below bring the number of new 

 species of Andrena from Milwaukee County, Wis., up to sev- 

 enteen. My sincere thanks are due to Prof. T. D. A. Cock- 

 erell for the interest taken in the study of these bees, as also 

 for the very liberal aid given me in various ways, 

 Andrena fragariana n. sp. 



9. — Length about 6 mm. Black. Pubescence whitish, thin, and of 

 moderate length. Head broad, distinctly striate below the ocelli. Fa- 

 cial foveae narrow, extending below the base of the antennae, and con- 

 taining light-brown pubescence. Cheeks narrow. Clypeus slightly 

 convex, shining, with sparse, shallow punctures. No median impunctate 

 line. The pubescence is short and sparse on the clypeus, longer on the 

 cheeks and sides of the face. Process of labrum short, semicircular. 

 Flagellum somewhat testaceous beneath. Joints 4 and 5 subequal, both 

 together about as long as 3. Mandibles reddish at the tips. Mesonotum 

 dull, finely roughened, with shallow, hardly visible punctures. Pleura 

 and sides of metathorax clothed with long white hairs, while those of the 

 mesonotum are rather short and thin. Enclosure of metathorax mod- 

 erately broad, defined by impressed lines, coarsely roughened through- 

 out. The sculpture of the surrounding area is much finer. Wings 

 yellowish hyaline, stigma and nervures testaceous. Second submarginal 

 cell more than one-half as long as third, receiving the first recurrent 

 nervure at or slightly before the middle. Tegulae testaceous exteriorly, 

 of a darker shade than the stigma. Legs black, with short white hairs. 

 Tibial scopa also white. The small joints of the tarsi are somewhat fer- 

 ruginous. On the inner side the basal joints are covered with light yel- 

 lowish pubescence. Abdomen shining, broad and flattened, with poorly 

 developed apical hair-bands, and narrowly testaceous apical margins. 

 Upper surface of segments minutely tessellate, without punctures. Anal 

 fimbria inclined to fulvous. 



cJ*. — About 5 mm. long. Very closely resembling the female. Pubes- 

 cence more cinereous than in the other sex, also longer and more dense 

 on clypeus, cheeks, pleura, and sides of metathorax. Cheeks regularly 

 rounded. Joint 3 of antennae about as long as 4 + 5. Second submar- 

 ginal cell narrower than in the female, and apical margins of abdominal 

 segments more distinctly testaceous. 



Milwaukee, Wis. , 10 $ and 16 9 specimens, collected from 

 May 15 to June 15, 1903, on the flowers of our commonest 

 wild strawberry, Fragaria virginiana This bee is an oligo- 

 tropic visitor of these flowers, and has not been observed on 

 the flowers of any other plant. 



