HYMENOPTERA 29 



(5} Nesocrabro adspectans. 



Crabro adspectans, Blackburn and Cameron, P. Manch. Soc. Vol. xxv. p. 171 

 (1885-86). 



I have not seen this species. It is very closely allied to N. dacmonius, but 

 differs from that species in having the front of the head clothed with golden-red 

 pubescence, and long hairs of the same colour on the front tibiae. 



Hab. Haleakala, Maui (5000 /t.). A pair were taken by Mr Blackburn 15 



(6) Nesoc7-abro stygius. 



Crabro stygius, Kirby, Ent. Mo. Mag. xvii. p. 88. Blackburn and Cameron, 

 P. Manch. Soc. Vol. xxv. p. 170 (1885-86). 



Niger, alls subhyalinis, vix infu.scatis, pronoto % nonnunquam llavo-notato, 

 segmentis </ apicalibus pubescentia pallida $ pubescentia rufa vestitis. i. Long. 

 8 mm. 



This species is very closely allied to A^. rubi'ocaudatus, but the </ may be at 

 once distinguished by the subhyaline and very faintly infuscated wings, the pubescence 

 of the apical abdominal segments, which is of a pale golden colour, the more distinctly 

 subrugosely punctate front of the head, and the shining surface of its vertex. 



From N. daenwnius, the dull and less smooth surface of the mesothorax and 

 scutellum, the unspotted thorax and the clearer wings, from N. adspectans, the 

 obscurely coloured pubescence of the head and front legs (as well as the characters 

 which distinguish it from A^. daemonius), will readily separate it. 



I have not seen an example of the ?. 



Hab. Mountains of Oahu (Blackburn). Head of Pauoa Valley (March 1895). 



DIPLOPTERA. 



Vespidae. 



(i) Polistes aurifer. 



Polistes aurifer, Saussure, Mon. Guepes Soc. p. 78. 



Hab. Very abundant all over the islands. Stylopized examples taken on 

 Lanai and Hawaii. 



