384 PROCEEDINGS OF THE NATIONAL MUSEUM vol. loi 



slender, with hair entirely light and the tarsi very long. Length 

 8-12 mm. 



ANDRENA (STENANDRENA) ESSIGI, new speciea 



Similar to A. pallidifovea (Viereck), but smaller, the abdomen 

 duller and with distinct but minute dense punctures on the basal 

 segments. 



Female. — Black, the mandibles usually dark red on apical half, 

 the flagellum strongly reddened beneath except at base. Small 

 joints of tarsi more or less ferruginous. Tegulae ferruginous, 

 darker at base. Wings uniformly dusky hyaline, the nervures and 

 stigma dark ferruginous, with subcosta and margins of stigma 

 darker. Head distinctly broader than long. Facial f oveae rather 

 broad, not much narrowed below, where they reach the level of 

 top of clypeus, and covering above hardly more than half the space 

 between eye and lateral ocellus. Labrum broadly rounded in front, 

 the basal process more than twice as broad as long, with sloping 

 sides and broadly truncate apex. Middle basitarsi slightly broader 

 than the hind pair. Head and thorax dull, minutely granular-tes- 

 sellate. Clypeus and anterior sides of face with small, shallow, 

 moderately close punctures, becoming a little coarser on middle of 

 clypeus. Frons rugulose, obscurely striate. Mesoscutum opaque, 

 obscurely punctured. Pleura of thorax more shining than the 

 notum, a little roughened on anterior part of each mesopleuron. 

 Pleuron of propodeum delicately tessellate and shining, without 

 punctures or hairs except along the anterior margin. Dorsum of 

 propodeum dull, rugulosely roughened, the sculpture of basal area 

 still rougher, with fine rugae. Abdomen dullish, minutely and very 

 closely punctate, the punctures more distinct on the two basal 

 tergites and a little sparser on the first than on the second. Pygid- 

 ial plate planate, dull, densely and minutely punctured except at 

 apex. Pubescence ochreous, moderately dense on face and thorax, 

 becoming more or less fulvo-ochreous on vertex and notum of 

 thorax. Mesoscutum with rather dense, short, erect hair, inter- 

 spersed with numerous longer, erect hairs. Hair at apex of hind 

 femora, apex of middle tibiae, and at base of hind tibiae above, 

 brown. Tergites 2 to 4 each with a dense, apical, pale-ochreous or 

 whitish hair band, usually broadly interrupted on 2. Extreme sides 

 of apical margin of first tergite with similar appressed hair. Base 

 and lateral margins of first tergite with erect, not very long, pale 

 hair. The disks of tergites 1 and 2 otherwise nude, but disks of 

 tergites 3 and 4 and base of tergite 5 with very short appressed 

 black hair. Apical fimbria brown but long hairs at sides of tergite 

 5 and at base of the fimbria more or less pallid. Length 7.5-10 

 mm. ; anterior wing 6.3-7.1 mm. 



