HYMENOPTERA 627 



abdomen sometimes reddish, with dense clothing like the propodeum, the abdomen 

 itself elongate-ovate, the second segment about twice as long as all the following 

 together. Wings with the thickened or punctiform marginal vein blackish fuscous. 

 Hab. Oahu ; 1500 — 2000 ft. 



(2) Phaenopria soror, sp. no v. 



Very like P. frater, but differing in the colour of the antennae, the scape being 

 almost black above, except at the tip ; in the darker colour of the legs, the clavate 

 portion of the hind tibiae being darkly infuscate ; and in the more elevated and sharper 

 basal angle of the median carina of the propodeum and the rather larger club joint of 

 the antennae. 



Hab. Hawaii, Kilauea ; taken while ovipositing in larvae of a species of Droso- 

 phila. 



(3) Phaenopria subtilis, sp. no v. 



Extremely like P. soror and P. frater and variable in colour. 



Black, polished, the legs and more or less of the antennae being red. Scape some- 

 times wholly red or partly or all except the base and apex suffused with black or dark 

 brown ; pedicel and flagellum sometimes wholly pale, the former and some of the basal 

 joints of the latter always red beneath, though nearly the whole flagellum may be dark 

 above. Legs sometimes to a considerable extent embrowned. 



Antennae with the pedicel thicker and as long or rather longer than the first 

 funicle joint, the latter a little longer than the second, the funicle joints being mosdy 

 small and longer than wide to about the sixth joint, the seventh, eighth and ninth are 

 notably wider than the preceding, the two latter appearing in some aspects fully as 

 wide as long or even somewhat transverse, the apical joint or club about as long as the 

 three preceding together or at least not much shorter. Basal abdominal girdle of 

 yellow hair very dense ; carina of propodeum in lateral aspect with its anterior angle 

 not very prominent. Length I'S — 17 mm. 



Hab. Oahu; Koolau range, 1500 ft. and above. 



(4) Phaenopria ambulator, sp. nov. 



Female reddish brown or castaneous, the head and the abdomen except at the base 

 black or nearly so ; the antennae black ; the scape and pedicel more or less red-tinged, 

 the legs ferruginous or brownish yellow. 



Head with the sides slightly convergent behind the eyes basally, sparsely clothed 

 with pale hairs, the eyes small ; ocelli absent ; antennae not much shorter than the 

 whole insect, scape about as long as the four following joints, the pedicel and first 

 flagellar joint nearly equal, the latter much longer than the second, the joints widening 

 towards the apex of the antennae, there being no definite club ; the penultimate joint 



F. H. II. ^^ 



