HYMEN OP TERA 1 7 



segment beneath hardly shining, remotely and finely punctured, except on the lateral 

 pubescent spots, where there is the usual very fine and close puncturation. 



Wings in cf with distinct blue iridescence, which is generally less evident, and 

 sometimes wanting in those of the ? . 



Hab. Mountains of IVIolokai {3000 ft.), 1S93. Haleakala, Maui (5000 ft.), i i. 



(3) Crabro {Soleniiis) mmiiensis. 



Crabro mauiensis, Blackburn and Cameron, P, Manch. Soc. Vol. .\xv. p. 165. 

 (1885—86). 



Resembles C. affinis in the golden pubescence on the clypeus, but the more 

 deeply canaliculated front of the head, and the coarser facets of the eyes, would 

 (the i being unknown) rather associate it with C. monticola. That species, however, 

 has the clypeus clothed with bright silvery pubescence. 



Hab. "A single female occurred on Maui, near Wailuku, flying over flowers." 

 (Blackburn.) 



(4) Crabro {Solenius) lialeakalae, sp. nov. 



Niger, clypeo aureo-piloso, mandibulis nigris, antennarum articulo primo antice 

 albido. Mesonotum postice cum parte scutelli anteriore laeve ac nitidum. Abdominis 

 segmentum 2 ventrale nitidissimum, et circa medium parcissime punctatum. ?. 

 Long. 10 mm. 



Female greatly resembling C. violokaicnsis in general appearance but with the 

 mandibles entirely black and the clypeus clothed with golden pubescence. Posterior 

 part of the mesothorax and the scutellum in front with the surface smooth shining 

 and distinctly punctured, the latter dull posteriorly. Abdomen with the second ventral 

 segment highly polished all over the middle portion, with a very few scattered 

 punctures, at the sides with the usual circular pubescent spots and dense fine punctura- 

 tion. Spines of posterior tibiae dark, and stronger than those of the preceding species. 

 Wings almost clear. 



Hab. a single ? taken on Haleakala, Maui, at an elevation of 4000 ft. 

 May, 1896. 



(5) Crabro {Solenius) hawaiiensis, sp. nov. 



Niger, clypeo argenteo-piloso, alls infuscatis, subcaeruleo-iridescentibus, mandi- 

 bulis articuloque antennarum primo nigris. i antennarum articulo sexto fortiter 

 dentato. i%. Long. 6 — 10 mm. 



p. F. H. 3 



