393 

 Notes on Hawaiian Prosopidae, 



BY D. T. FI'LLAWAY. 



These notes are based upon an examination of the large col- 

 lection of bees belonging to Mr. AV. M. Giffard, who, as is well 

 known, has been an indefatigal)le collector of insects for years, 

 paying special attention in his collecting to the Aculeate Hy- 

 menoptera. Of the (50 described species and varieties of native 

 bees, 49 are represented in the collection, most of them by line 

 series. Oahn forms are complete, only two are missing ont of 

 the large nninl)er fonnd on the island of Hawaii, with ^Mani 

 and Kanai not so well represented. The principal resnlt of 

 this examination has been the accnmnlation of data on distribn- 

 tion and variability which tends to weaken the value of certain 

 species in groups of closely related forms. Owing to the con- 

 tradictory nature of some of the evidence, however, it is con- 

 sidered inadvisable to go further than to point out certain well 

 nurrked duplications. An attempt has also been made, with 

 some success, to match up forms represented by but one sex. 

 Xovelties, at this date, were hardly expected, but a few have 

 turned up, notably the nnich-sought male of nigulosa. Alto- 

 gether, it is believed considerable is added to our knowledge of 

 the bees. Acknowledgment is gratefully made of help received 

 from Dr. E. 0. L. Perkins. 



SoiPT-EX — loc. rec. Ililea, Kan, many specimens. Honu- 

 apo, 2. Kilauea-llonuapo auto road, 1. 



Laeta — loc. rec. Hawaii, Kan lava flows, many. Kilauea, 

 several. 



KoxA — lor. rec. Kilauea and Kau. Xot common. 



liuGULosA — Two s])ecimens, taken on different occasions, 

 are referred to this. Both bear tags in Dr. Perkins' handwrit- 

 ing indicating their peculiarity but without attaching a name. 

 The type of rur/ulom is not available but these specimens ap- 



Proc. Haw. Ent. See, III, Xo. 5, April. 1918. 



