HTOKGlc^ YOL. lY. BROOKLYN, JUNE, 1888. NO. 8. A Revised Generic Table of the EURYTOMINiE, with Descriptions of New Species. By William H. Ashmead. (Part I.) Prof. Westwood's group Euiytomidcs, in the family Chalcididcs, has always been an attractive one to students in the order Hymenoptera, on account of the dissimilarity in the habits of some of the species represent-ing the group ; for, while the major portion of them are true parasites, it is now a thoroughly established fact that a small portion of them are unquestionably Phytophagous, or pseudo gall-makers; and, if we exclude the BlastophagcB, or Fig-caprifiers from the famil\' ChalcididtP , they are then the only ones in the whole family out of thousands of species that have this habit. Up to the present day, the species composing the group, have been placed in but seven genera, viz : — Eiirytoma, Illiger, 1 807 ; Decatoma, Spinola, i8ix ; Isosoma, Walker, 1832; Syslole, Walker, 1832; Phy-lachyra, Haliday, 1871 ; Aw/omorphus, WaWier, 1871; ?ind Bephra /a, Cameron, 1884. But recentlv, in working up my material in the grt)Up, the acumula-tion of several years, I have found it necessary to erect many additional genera andbelowl give a carefully prepared anal\tic tal)le of all the known genera, with the essential characters of the new ones recognized, which will be followed by another paper with descriptions of the new species. The table is as follows :
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