128 PROCEEDINGS OF THE NATIONAL MVSEUM. vol. xxvni. 



Undoubtedl}', however, hundreds still remain unknown to us, and if 

 these insects were systematically collected in the islands the list could 

 be greatly increased by many of the descril)ed species known in India, 

 Cej'lon, Java, Borneo, and other islands of the Malayan region. 



The author would be glad to receive and determine Hymenoptera 

 from any part of the Philippines. 



Family JX. MEGACHILID.E. 



Snl)l:iiiiily II. IMKO-^-^CIIII^i:^^^^:. 



Genus MEGACHILE Latreille. 

 MEGACHILE ROBBII, new species. 



Female. — Length, lo mm. Black, the head aljove (the only portion 

 to be seen on account of the dense pul>escence) closely punctured, the 

 thorax sparsely punctured, the abdomen smooth; the first, second, and 

 third dorsal segments are sparsely microscopically punctate toward 

 base, smooth toward apex; the front of the head and the clypeus, the 

 sides of the thorax, the mesothorax laterally, the metathorax, and 

 the })asal segment of the a1>domen are clothed with rather a dense 

 fulvous pubescence; the legs with a griseous pubescence, the scopa of 

 the tarsi ferruginous, the apical margin of the second abdominal seg- 

 ment and the third, fourth, and fiftli laterally with a dirty whitish or 

 griseous pu))escence; the ventral scopa is long and dense, and tinged 

 with yellow. Wings subfuscous; tlie stigma and veins black. Anten- 

 nae wholly black. 



Ti/pe.^Cat. No. S02S, U.S.N.M. 



Manila. Descril)ed from a single specimen captured l)y Mr. M. L. 

 Robl). 



Family XII. ANDRENID.F. 



SLiiafaiiiiiy II. ii^^i^icri^s'^*:;. 



Genus HALICTUS Latreille. 



HALICTUS PHILIPPINENSIS, new species. 



Femahj. — Length, 5.5 nun. Aeneous l)lack, the thorax al)ove dull 

 bronzed, minutely punctate, clothed with a whitish pul)escence, which 

 is rather dense on the face, pronotum above, post-scutellum and the 

 plura; the clypeus is somewhat produced anteriorly, trapezoidal, and 

 sparsely punctate; the face below the ocelli is closely, minutely, 

 opaquely punctate; the vertex is almost smooth and shining; the 

 antenntv are black, the liagellum at apex beneath brownish; the funicle 

 joints, after the first, wider than long, the first joint obconical, hardly 

 longer than thick; the wings are hyaline, with the tegula\ the stigma, 

 and the veins, except the subcostal vein, testaceous; the subcostal vein 



