Becords of Bees. 3 



to yellowish green suffused with violet), with extremely fine 

 punctures ; tubercles reddish, with a dense fringe of pale 

 hair ; pleura grceu suffused with red, but there is a violet 

 area just below the wings ; metathorax green, mostly dull, 

 but brilliantly shining at sides above ; area of metathorax, 

 except apically, quite dull, and covered with fine but very 

 distinct radiating rugae; tcguhe dark reddish. Wings 

 dusky; nervures and stigma dark rufo-fuscous ; outer r.n. 

 and t.-c. much weakened; first r.n. joining second s.m. 

 some distance before end ; third s.m. short, smaller than 

 second. Legs dark reddish ; middle femora with a large 

 tuft of orange hair at base beneath ; hind femora strongly 

 arcuate, with a curled scopa on underside ; hind spur with 

 four stout tectli, the two basal ones long. Abdomen broad, 

 shining, scarcely punctured, not banded, dark green, sutf used 

 with violet at sides (or very little so) ; the second segment 

 may have a subbasal band of reddish colour; venter with an 

 abundant light reddish curled scopa. 



Microscopical characters : — Front longitudinally lineolate 

 and minutely corrugated; vertex transversely lineolate; 

 niesothorax very delicately tcssellate between the punctures ; 

 teguUe anteriorly with very few piliferous punctures ; area 

 of metathorax with about 26 rugse, between which it is trans- 

 versely striated basally, but the golden-tinted apical part 

 beyond the rugse is minutely cancellate ; abdomen very 

 finely transversely lineolate. 



Hub. Island of Guam, 3 ? (D. T. Fallaway). U.S. 

 Katiijual Museum. 



Very close to H. perpessicius, Kohl, from Samoa, but the 

 hind femora are strongly arched beneath, without a secondary 

 >ubapical swelling. The colour also seems rather different. 

 1 have never seen H pi-rpessicius, and have depended on 

 Kohl's description and figures. The new species is named 

 after W. E. Safford, who has published a most excellent 

 account of Guam. 



It is singular that the above three species from Guam are 

 all very closely related to other species of the Pacific islands, 

 yet distinguishable. How did they reach the island? Could 

 they have been brought with plants by the early settlers 

 before the historic period ? How much time is necessary to 

 bring about the modification observed ? Analogous questions 

 are raised with respect to the mammals of the Andaman and 

 Nicobar Islands by G. S. Miller in Proc. U.S. National 

 Museum, xxiv. p. 791. 



1* 



