356 
INSECTA, HYMENOPTERA. 
ters given). Sp. : S. chmensis, sp. n., Holmgr. ibid. Taf. viii. f. 6, China; S. 
vitlicolliSj sp. n., Holmgr. 1. c. p. 431, California. 
New species : — 
Bracon dimidiatus^ Malacca, and melanocephalus, Puna, p. 420; sawjuinosusj 
p. 421, Mauritius; taiticus and unicarmatusj p. 422, Tahiti; macidioentris^ 
p. 423, pectondis, p. 424, viotoriniy p. 420, C. of Good Hope ; hohemani, p. 423, 
melanopuSy p. 424, waJtlbergiy p. 425, S. Africa ; {B. .?) ferruginosusy p. 420, 
Ilio Janeiro : Holmgren, I c. 
Bracon bellosusy Smith, Tr. E. Soc. 1870, p. 531, Kinsemho, S.W. Africa. 
Agathis chmctmsy China, and coxatus, Puna : Holmgr. /. c. p. 428. 
Ischius ImcogadcVy Holmgr. /. c. p. 420, Sydney. 
Perditus lungipeSy Holmgr. 1. c. p. 429, Tahiti. 
Microtonus rufuSy Holmgr. 1. c. p. 431, Buenos Ayres. 
Microgaster guamc^isisy I. Guam, and taiticus, Tahiti, p. 432 ; carbonariusy 
Mauritius : Holmgr. 1. c. p. 433. 
Chelonus bisjnnus, p. 433, Puna; C. fratercidus, p. 434, Tahiti : Holmgr. 1. c. 
Pambolus melanocephalus, Mshall. /. c., Surrey and Kent. 
EvANIIDiE. 
Feonus [sic] area, sp. n., Couper, Canad. Ent. ii. p. 110, Ottawa. 
CHALCIDIDAi. 
Isosoma hordei (Harris). Walsh & Ililey (Amer. Ent. i. pp. 149-158) 
discuss the economy of this species, Imowii 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 
Scmiotelhcs chalcidqihaguSy but not described, and other real or supposed spp. 
of ‘‘joint-worms” are discussed. The authors argue, from unity of habit, 
that hordei (Harr.) is not a Eurytoma, which is a parasitic genus, altliough 
it undoubtedly belongs to the Eurytomides ; anti 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. mirabilis, is indicated at p. 16G, 
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. 297-301, 329-335, 367-370, figs. 1-10), after some obser- 
vations (founded on the habits of certain spp. of Eurytoma and Chalcis) tend- 
ing to express a belief in the existence of Entomophagic varieties and species 
analogous to his expressed views as to Phytopliagic vars. and spp., recliarac- 
terizes the genera Eurytoma, Decatoma, and Isoso7na. He tabulates the N. 
American spp, of Eui’ytoma (p. 298), and describes the following new species 
and vars. : — E. bicolor, ibid., from fungoid growth on twigs of black and red 
oak (cf, Osten-Sacken, Broc. Ent. Soc. Phil. iv. p. 305, note), but probably 
an inquiline only; E. pt'unicola, ibid. fig. 1, from the gall Quercils prunus 
Walsh, and var. ylobtdicola, p. 299, from gall Q. globulus, Fitch ; E. auri^ 
ceps, ibid., from galls Q. eriuaceus, Walsh, ?—Q. pisimi, Fitch, Q. spongijiea, 
O.-S., Q. hirta (Bass.), and Q. radicu?n, 0,-S., and var. seminatrix from 
