HYMENOPTERA 667 



(13) Polyncma nana, sp. nov. 



Black, the antennae entirely black above, but the scape and pedicel in lateral view 

 are usually more or less pale, piceous or sometimes yellowish ; legs blackish or dark 

 brown, but the tarsi are paler, generally yellowish, sometimes infuscate above, the apical 

 joint being conspicuously black. 



Antennae of t considerably longer than the whole insect, pedicel compressed, 

 dilated, strongly rounded beneath, the first funicle joint decidedly shorter than the 

 second, the third and following subequal, the latter being rather more than twice as long 

 as its greatest width. In the % the first funicle joint is short, much shorter than the 

 second, the club as long as the three preceding joints together, the pedicel compressed, 

 ovate. Pronotum short and hardly noticeable in dorsal aspect, the mesonotum shining, 

 with distinct parapsidal furrows and a very delicate reticulate sculpture under high 

 powers of the microscope. Scutellum large and long as in the other Hawaiian species. 

 Wings evenly hairy, marginal vein dark, punctiform, the cilia, where longest, as long as 

 or longer than the greatest width of the front wing. Abdomen smooth, shining, the 

 ovipositor slightly, but distinctly, exserted. Length about '5 mm. 



Hab. Hawaii, Kilauea. One apterous female, taken with the winged ones, 

 appears identical with the above. 



(14) Polyncma reduvioli P. 

 Polynenm reduvioli Perk., Bull. H. S. P. A. Exp. St. i. p. 196. 

 Hab. Oahu, Kauai, Hawaii, and no doubt all the islands. 



CYNIPOIDEA. 



Fam. FIGITIDAE. 



Subfam. EUCOILINAE. 



The species of Eucoiline Cynipoids are numerous in the islands, and unquestionably 

 difficult to determine specifically. Ashmead referred the Hawaiian species described by 

 him to a number of genera, but to me all the Hawaiian species appear intimately allied 

 and likely to prove still more intimately so, as new species are found. Kiefifer in 

 Wytsman's Genera Ins. refers Ashmead's Hawaiian species to three genera, and 

 I believe the Pilinothrix of Ashmead should have been placed with the forms, which 

 Kieffer refers to Cothonaspis, subg. Anectocleis. It is also noteworthy that the 

 Hawaiian species with closed marginal cell, referred by Kieffer to Eticoila, subg. 

 Psichacra, very closely resemble some of the forms with open marginal cell and that 

 this cell in different species varies very much as to how far it is open above. In fact in 

 some Hawaiian forms it is not at all easy to decide whether the marginal cell is really 

 closed or open. 



F. H. II. 86 



