HYMENOPTERA PARASITICA 299 



cylindrical, the first the longest but very little longer than the second, the third about 

 the length of the fourth and fifth united, which are moniliform ; club 5-jointed, the first 

 being twice as wide as long but narrower than the second. The metathorax has the 

 upper hind angles dentate, the postscutellar ridge being angulated at the middle. Wings 

 hyaline, the veins pallid. Abdomen alutaceously punctate, with the first segment striate, 

 the second aciculate, the aciculations evanescent towards the apex. 

 Described from one specimen. 



Hab. Kauai : Makaweli {2000 feet), in January. 



Superfamily VI. CYNIPOIDEA. 



This large complex, which comprises two families and several subfamilies with quite 

 diverse habits, some being phytophagous, some inquilinous, and others parasitic, is here 

 noted from the Hawaiian Archipelago for the first time by several representatives 

 belonging to the subfamily Eucoelinae. 



All of the species in this subfamily, so far as the published records go, seem to 

 confine their attacks to the larvae and puparia of the Diptera. 



Family LVIII. FIGITIDAE. 



Subfamily V. EUCOELINAE. 

 PiLiNOTHRix Forster. 

 1869. Pilinothrix Forster, Verb, zool.-bot. Gesell. Wien, xix. pp. 345 & 358. 



( I ) Pilinothrix bicolor, sp. nov. 



%. Length 2-5 mm. Polished, impunctate ; head and thorax mostly black, the 

 mesonotum, scutellum and abdomen reddish-brown or castaneous; legs brownish-yellow; 

 wings hyaline, pubescent, the tegulae and veins brownish, the marginal cell open along 

 the front margin except near the base. 



The antennae are 13-jointed, as long or a little longer than the body, black, the 

 scape obconical, a little shorter than the first joint of the flagellum, the pedicel oval, the 

 flagellum slightly and gradually thickened towards apex, the joints long, subcylindrical, 

 fluted, sparsely pubescent and subequal in length, about 3^ times as long as thick, the 

 first two or three joints slenderer than the following but scarcely perceptibly shorter 

 than the fifth joint. The sides of the scutellum are longitudinally striate and clothed 

 with a few glittering hairs, the cup being long, ellipsoidal. The metathorax is finely 



