"^'iSi!^,i:t" ^MMm in the Uni.

356
INSECTA, HYMENOPTERA.
ters given). Sp.: S. chinensis, sp. n, Holmgr. ibid. Taf. viii, f. 5, China; S.
vitticollis, sp. n, Holmgr. I. c. p. 431, California.
New species:—
Br aeon climidiatus, Malacca, and melanoccphalus, Puna, p. 420; sanguinosus,
p. 421, Mauritius; taiticus and itnicavinatus, p. 422, Tahiti; maeu/iventris,
p. 423, pectoralis, p. 424, victovini, p. 420, C. of Good Hope; bohemani, p. 423,
melanopus, p. 424, wahlbergi, p. 425, S. Africa; (B.?) ferruginosus, p. 426,
Rio Janeiro : Holmgren, I. c.
Bracon bellosus, Smith, Tr. E. Soc. 1870, p. 531, Kinsembo, S.W. Africa.
Agathis chinensis, China, and coxatus, Puna: Holmgr. I. c. p. 428.
Ischius leucogaster, Holmgr. /. c. p. 429, Sydney.
Pcri/itus longipcs, Holmgr. I. c. p. 420, Tahiti.
Microtonus rufus, Holmgr. I. c. p. 431, Buenos Ayres.
Microgastcr guamensis, I. Guam, and taiticus, Tahiti, p. 432; carbonarius,
Mauritius: Holmgr. /. c. p. 433.
Clielonus bispinus, p. 433, Puna; C. fvatevculus, p. 434, Tahiti: Holmgr. /. e.
Pambolus melanoceplialus, Mshall. /. c, Surrey and Kent.
EVANIIDiE.
Feoniis [sic] area, sp. n, Couper, Canad. Ent. ii. p. 110, Ottawa.
CHALCIDIMS.
Isosoma hor dei (Harris). Walsh & Riley (Amer. Ent. i. pp. 149-158)
discuss the economy of this species, known as the " Joint-worm " in North
America, and figure it and stems of barley affected by it, figs. 113 & 117.
Chalcideous parasites of this insect are well figured (f. 114), and named
Scmiotcllus chalcidiphagus, but not described, and other real or supposed spp.
of "joint-worms'' are discussed. The authors argue, from unity of habit,
that hordei (Uarr.) is not a Eurytoma, which is a parasitic genus, although
it undoubtedly belongs to the Eurytomides; and they give figures and details
of both sexes of Eurytoma and Decatoma, showing differences of structure, as
compared with Isosoma, in corroboration of this argument. A new genus,
Antigaster, containing one new species, A. mirubilis, is indicated at p. 150,
and figured in detail, f. 118. This, with the new species above mentioned,
is subsequently described in a posthumous paper by Walsh.
WALSH (in the posthumous paper above alluded to, published in Amer.
Ent. & Bot. ii. pp. 207-301, 320-335, 307-370, figs. 1-10), after some observations
(founded on the habits of certain spp. of Eurytoma and Chalcis) tending
to express a belief in the existence of Entomophagic varieties and species
analogous to his expressed views as to Phytophagic vars. and spp, recharacterizes
the genera Eurytoma, Decatoma, and Isosoma. He tabulates the N.
American spp. of Eurgtoma (p. 2SM), and describes the following new species
and vars.:—E. bicolor, ibid, from fungoid growth on twigs of black and red
oak (cf Osten-Sacken, Proc. Ent. Soc. Phil. iv. p. 3(55, note), but probably
an inquiline only; E. primicola, ibid. fig. 1, from the gall Quercus prunus
Walsh, and var. g/obulieola, p. 200, from gall Q. ylobulus, Fitch; E. aurie-eps,^
ibid, from galls Q. erinaeeus, Walsh, ?= Q. pisum, Fitch, Q. spongiflca,
O.-S, Q. hirta (Ba,s.), and Q. radiant, O.-S, and var. seminatrix from