go FAUNA HAWAIIENSIS 



Female very like the </, the face very wide with obscurely-coloured pubescence : 

 cheek extremely short ; the scutellum more or less shining ; apical segments of the 

 abdomen above and beneath with the hairs black or of an obscure colour. 



Hab. Mountains of Kauai, 3000 ft., and on the high plateau. 



(5) Nesoprosopis difficilis, sp. nov. 



Nigra, mesonoto griseo-pubescente, subtiliter nee dense punctato, propodeo antice 

 rugoso, alls plus minusve hyalinis, baud caeruleo-iridescentibus ; d" articulo 1° anten- 

 narum dilatato, subtus fortiter arcuato, bis longiore quam latiore ; capite prae antennis, 

 necnon saepe tibiis tarsisque plus minusve flavescentibus ; genitalium stipitibus apice 

 rotundatis ac fimbriatis, baud productis ; % pedibus, segmentisque abdominis apicalibus 

 pallide pubescentibus. (/?. Long. 5 — 8-5 mm. (Plate II. fig. ir — iic.) 



^ Black, with the clypeus, the plate above it, and a spot on each side adjoining it, 

 yellow ; anterior tibiae pale in front ; antennae with the flagellum often more or less 

 pale beneath ; the posterior legs often have the tibiae and basal joint of the tarsi more 

 or less yellow, sometimes also the intermediate legs are similarly coloured. All these 

 markino-s are variable, the posterior and intermediate legs are often entirely dark. 

 The general appearance is that of N. facilis, &c., the head being of similar form and 

 in typical specimens similarly marked. 



Antennae with the scape dilated as in A^. facilis, about twice as long as wide, 

 and strongly arched beneath ; plate above the clypeus generally short, the length of 

 each of its sides to the antennal fossa subequal to or less than the length of its anterior 

 margin ; cheeks between the eye and base of the mandibles short ; head above the 

 antennae dull, with roughened surface, closely and shallowly punctured, clothed with 

 long grey hairs. Mesothorax and scutellum clothed with somewhat long, erect, grey 

 pubescence, puncturation much as in N, facilis, &c., the punctures fine and very 

 shallow, but not very close, the fine rugosity of the surface and the pubescence 

 generally giving them an indistinct appearance ; anterior area of the propodeum 

 longitudinally rugose, wings subhyaline, or quite clear in fresh examples. Abdomen 

 as in N, facilis ; genital armature with the stipites rounded at the apex, not at all 

 produced, evenly fringed with long hairs ; eighth ventral segment apparently rather 

 variable, its process towards the apex clothed with hairs, but with a less dense 

 covering than that of N. facilis, its apex not bifurcated into long branches, but usually 

 only slightly dilated at the extremity, rarely with the angles of the dilatation more or 

 less produced. 



Female in general appearance very like that sex of A^. facilis. Head above the 

 antennae dull, with roughened surface, closely and shallowly punctured, clothed with 

 long pubescence. Mesothorax very finely punctured ; propodeum with the anterior 



