BEES OF THE FAMILY ANDRENIDAE— TIMBERLAKE 407 



One paratype, with same data, in the collection of the Citrus 

 Experiment Station. 



ANDRENA (THYSANDRENA) SUBDEPRESSA, new species 



Allied to A. chlorura Cockerell, but distinct in the large amount 

 of black hair on the head and mesopleura, in the unusually nar- 

 row facial foveae, subdepressed clypeus, and shorter antennae. 



Female. — Head and thorax faintly bluish green, the abdomen 

 dark olive green. Mandibles, labrum, clypeus, antennae, and legs 

 black, the sides of thorax and propodeum almost black. Apex of 

 mandibles dark red, and the tegulae slightly reddened. Wings 

 rather strongly dusky, the stigma and nervures dark reddish, 

 the subcosta black. Head somewhat broader than long. Process 

 of labrum about twice as broad as long, truncate at apex. Anten- 

 nae short, the joints of flagellum, except the first and last, no 

 longer than wide. Facial foveae linear, narrower than width of 

 flagellum, and reaching level of antennal sockets. Clypeus more 

 produced than in chlorura, subdepressed, shining, but not pol- 

 ished, closely and rather finely punctured, the punctures fading 

 out on lateral and dorsal margins. Frons closely striate. Thorax 

 dullish, the mesoscutum somewhat granular-tessellate, and with 

 fine, shallow punctures. Propodeum almost opaque, the basal 

 area minutely granular-tesselate. Abdomen a little less shining 

 than in chlorura, but with about the same minute setigerous punc- 

 tures. Pubescence brownish ochreous, a little paler on the under- 

 parts. Hair on each side of face, almost to anterior end of eyes, 

 that on scapes, the thin hair of frons and vertex, that on the 

 temples in part, and a rather large patch on upper part of each 

 mesopleuron, below tegulae, black. Hair on clypeus and middle 

 of face below antennae dusky ochraceous, sometimes with a few 

 black hairs intermixed, but strongly contrasting with the black 

 orbital hair. Hair of face long, especially the black hair of scapes 

 and orbits. Hair of legs mainly light, but a little tinged with 

 brownish on front and middle tibiae and tarsi. The short tuft 

 at apex of hind femora, hair on dorsal margin of hind tibiae 

 especially toward the base, and short, dense tuft of hair at ex- 

 treme apex of hind tibiae above, fuscous. Hair of abdomen above 

 rather abundant and erect, but not dense enough to obscure 

 the surface. Hair of first tergite long and that of second but 

 little shorter. Apical bands of tergites 2 to 4 thin, concolorous, 

 and not noticeable except when viewed from above. Apical fimbria 

 fuscous. Facial foveae black in frontal view and pale brown when 

 viewed obliquely. Length 9 mm. ; anterior wing 7.5 mm. 



Male. — Similar to female. Head and thorax dark bluish green. 

 Black hair of head and thorax more abundant, the black orbital 



