HYMEN OP TERA 



605 



the thorax, having a very fine and close surface sculpture, and excessively fine indefinite 

 puncturation. 



Female, except for the usual sexual differences, like the male in sculpture, etc., the 

 face entirely black, the front tibiae somewhat reddish in front. Mesonotum and 

 scutellum excessively dull, finely and very shallowly punctured and the propodeum 

 rugose as in the other sex. Wings smoky brown. Puncturation of the abdomen 

 excessively fine and feeble or indefinite, apical segment clothed with fuscous hairs. 

 Larger than the Z. Length 7 — 10 mm. 



Closely allied to A^. assimulans, but quite easily distinguishable. The female is 

 one of the largest of the species having no well-defined abdominal puncturation. 



Hab. Hawaii, Kona district. 



(2) Nesoprosopis flavipes, Sm. 



Nesoprosopis flavipes Smith, huj. op. i. p. 99. 



This is apparently a distinct species, which I have now taken on Hawaii. It is 

 extremely close to A'^. blackburni Sm. 



Hab. Hawaii, a coast or low-land species. 



Fam. MEGACHILIDAE. 

 (i) Lithiirgus sp. ? 

 Hab. Oahu, widely distributed and sometimes abundant. 



First appeared 



about 1 900. 



SPHECOIDEA. 



( = P'ossores huj. op. i. p. 7.) 



Fam. PEMPHREDONIDAE. 



Subfam. PSENINAE. 



Stigmus Jur. 



(0 



Stiomus mordinatus Fox. 



Stiznms mordinatus Fox. 



A single specimen of a Stigmus was taken in Honolulu some years ago, but the 

 species has not since been met with. 1 sent a description to Dr Ashmead of Washington, 

 who informed me that it agreed well with the above, found in California and Colorado. 



Hab. Oahu, Honolulu. 



78—2 



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