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HYMENOPTERA 68 1 



and in front at the sides to the tegulae ; upper edge of anterior and posterior orbits 

 narrowly red, with a dilatation of this colour on the vertex. Basal abdominal segment 

 red at the base for half its length or nearly, second segment red-marked at extreme base 

 and at the apex, second and third for a large part or wholly red, claspers testaceous. 



Scape of antennae short, not or hardly longer than its greatest width, first and 

 second flagellar joints subequally elongate. Mesonotum dull, shallowly but distinctly 

 punctured on its posterior half, the punctures becoming effaced anteriorly ; scutellum 

 shining and punctate, the deep transverse impression in front of it longitudinally rugose; 

 propodeum strongly areolated, the areoles of the posterior surface rugose. Wings 

 slightly yellowish-tinged, neuration yellowish fuscous, stigma very large, triangular, 

 fuscous. Basal abdominal segment finely longitudinally rugose on its apical half, second 

 segment very finely so, third excessively finely rugulose at the base laterally. Hind 

 coxae with a strong tooth beneath near the middle, between which and the apex are 

 several minute teeth. 



Female generally like the male, but the basal antennal joints are dark brown or 

 infuscate, the orbits and thorax wholly black, the hind coxae nearly entirely black 

 or very dark brown, the hind femora nearly wholly pitchy brown, and much more slender, 

 the tooth is more slender and placed nearer to the apex of the joint, the minute teeth 

 following it being absent or hardly visible, the third, fourth and fifth abdominal segments 

 with narrow red apical margins. Ovipositor nearly as long as the abdomen. Length 

 5"5— 7"5 mm. 



Hab. Hawaii, widely distributed at an elevation of looo — 2000 ft. 



(2) Pristomertis hilaris, sp. nov. 



Very closely allied to P. hazuaiiensis, but the J is easily distinguished by having 

 the whole thorax red, excepting more or less of the propodeum ; the antennae have the 

 basal flagellar joints pale, as well as the scape. In some examples the propodeum is 

 nearly entirely black, in others it is half red. The basal abdominal segments are a little 

 more finely longitudinally rugose, and the metapleura above the hind coxae less strongly 

 punctured. Length $ 7 mm. 



I have not seen a female of this species, which replaces the preceding on Oahu, 

 Maui and Molokai, but may prove to be merely a variety and not a good species. 



Hab. Oahu, Molokai and Maui ; 1000 ft. or more above sea-level. 



Atrometrus Forst. 



(i) Atrometrus tephrias, sp. nov. 

 Male with the whole head, excepting the occiput and a broad median band 

 extending from this to the antennae and enclosing the ocelli, lemon-yellow ; scape, 

 pedicel and base of flagellum more or less pale beneath ; the whole of the prothorax. 



