[20 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 38. 



extension; spots on sides of face connected; outer side of all tibiae 

 yellowish-white; front tibiae reddish; hands on segments 2 and 3 

 widely interrupted; a hand on sixth segment. 



Manila, P. I. (Robert E. Brown, collector.) 



Type. Cat. No. 12885, U.S.N.M. 



Family AXDKKNID.E. 



Subfamily 1 1 AI ilCITN". I .. 

 NESOHALICTUS, new subgenus. 



Closely resembles Halictus, hut differs by the greatly elongate 

 tongue, which is about as long as the antennae, by haying the inner 

 spur «'f the hind tibiae in the male armed with a few large teeth, and 

 by haying all the transverso-cubital veins, the cubitus beyond the 

 second transverse cubital, and the upper two-thirds of the second 

 recurrent vein, obsolescent. 



Type. The following species. 



HALICTUS (NESOHALICTUS) ROBBII, new species. 



Male. — Length 0-0.5 mm. Black, head and thorax finely line- 

 olated, covered with long, whitish, plumose pubescence, clypeus 

 greatly produced, with scattered large, weak punctures, punctures 

 of the supraclypeal area closer; above antenna' the punctures fine, 

 crowded; antennae reddish beneath, joints two and three short, 

 together hardly as long as the fourth; mesothorax finely reticulated 

 wiili scattered fine punctures, the reticulations appearing as punc- 

 ture-, except under a high power; median and parapsidal furrows 

 apparent; metathorax irregularly rugulose, with an indistinct basal 

 inclosure, which is not pubescent; truncation surrounded by a hex- 

 agonal carina; wings slightly dusky, stigma and veins light colored; 

 legs brown, tarsi reddish, hind inner spur with a few large teeth; 

 abdomen closely, finely punctured; segments 2 1 with small basal 

 hair patches. 



Female. Unknown. 



Manila, P. I. (Collected by M. L. Robb and K. E. Brown.) 



Type. Cat. No. L2886, U.S.N.M. 



Named lor M. L. Robb, the collector. 



Super-family SPHECOIDEA. 

 Kaniik NIILA.YnillhE. 



CERCERIS LUZONENSIS, new species. 



Male. Length 7 nun. Black, coarsely and closely punctured, 

 more closely SO on pleurae; enclosed place at base of metathorax 

 longitudinally stnate; scape except a line above, broad inner mar- 

 gins <■!' eyes to above level of insertion of antenna', spot at base of 



