HYMENOPTERA 107 



the white streak, their apical joints are generally pale, but sometimes dark. Apical 

 segments of the abdomen generally with bright brown hairs, but sometimes these are 

 of an obscure colour. Length, 8 — 1 1 mm. 



Nesoprosopis fuscipentiis, var. obsciiripes, var. nov. 



Tarsi all dark, and the wings, especially beneath, with a violet iridescence ; pubescence 

 of the apical segments of the abdomen of the % usually darker than in typical examples. 



Hab. Mountains of Oahu, both ranges. Mountains of West Maui, var. obscuripes. 



Obs. This and most of the following species are remarkable for their great 

 size, and the very evident puncturation of the abdomen. The examples taken on 

 Maui appear to be always of the var. obscuripes ; some of the Oahuan specimens 

 are hardly separable from these, while others with shining fuscous wings without 

 iridescence, and pale tarsi, have a distinct appearance. 



(43) Nesoprosopis caeruleipennis, sp. nov. 



Praecedenti simillima, pronoto postice albo-marginato, tarsis infuscatis, alis laete 

 caeruleo-iridescentibus. Long. 8 — 1 1 mm. 



Hardly differs in structure, so far as I can see, from the preceding, but the 

 dark wings with light blue iridescence on both surfaces, give it a very distinct 

 appearance. The pale markings are like those of A^. fuscipennis, those on the legs 

 are variable. The apical segments are clothed above and beneath with more or less 

 obscurely-coloured pubescence, and the tarsi are dark. 



Hab. Mountains of Molokai and Lanai, from two to four thousand feet. Many 

 examples taken, and a variety of both cT and ? on Molokai with the abdomen more 

 or less reddish. 



(44) Nesoprosopis pubescens, sp. no\'. 



Praecedentibus simillima, abdomine magis pubescente, pronoto postice nigro, rarius 

 albo-marginato, segmento secundo ventrali a basi magis elevato, saepe subtuberculato ; 

 alis fuscis; ? abdominis segmentis apicalibus pallide pubescentibus. Long. 8 — 11 mm. 

 (Plate II. fig. 21 — 21 c.) 



Prothorax generally black, sometimes with a much broken white band on the 

 posterior margin or faint indications of such, very rarely the cT has an entire band. The 

 legs are variable in colour, in some examples almost the whole of the posterior metatarsi 

 are white. The wings in the ? are shining fuscous, generally also in the c/", but in 

 one of these they show a distinct blue iridescence. The prothorax in the ? appears 



14 — 2 



