170

REPORT ON ZOOLOGY, MDCCCXLIII.

T. blanda, L.; and T. Grossularia, from the description, is, in my opinion,doubtful, from the appellation probably only a variety of T. ( Nematus )Bibesii , Schr. ( ventricosus , Kl., Hart.)

Urocerata. —Spinolahas published a Memoir, 'which was produced beforethe Scientific Congress at Padua, entitled, ‘ Considerazioni sopra i costumidegl’ Imenotteri del g. Sirex P., e sopra il mighor posto dei Sireceti nelmethodo razionale, Genova, 1843 in which he supports the opinion latelypropounded by Lepelletier de St.Pargeau, that the Wood Wasps are parasitic,in the same way as the Ichneumons , by an instance in which a Sirex gigas isstated to have come out of the pupa of Papilio machaon . The author, how-ever, does not agree with Lepelletier in separating the Wood Wasps from theSaw Plies and associating them with the Ichneumons ; and he is the morecorrect in this, as it has been sufficiently ascertained in this country, that theSirex-larva; themselves bore into the wood; and the observation related abovemust be founded in some error.

Ichneumonides . —Blackwall (Report of the Twelfth Meeting of the Brit.Association, held in Manchester, 1842, p. 68; in more detail, Ann. Nat.Hist, xi, p. 1; Pror. N. Notiz. 25 B. s. 113) has given an account of thelarva of an Ichneumon, which is met with externally, on the upper part ofthe abdomen of several spiders, particularly of Epe'ira antriada, aud cucur-bitina, &c. Prom this larva he bred an Ichneumon , which Stevens deter-mined to be Polysphincta curbonaria, Gr. When the Ichneumon larva hadquitted the Spider, for the purpose of spinning its cocoon on the corkof the bottle in which it had been contained, the Spider died. The latterwas immature, and it was a remarkable circumstance that it did not cast itsskin.

As new Spanish Ichneumons , Spinola has described (1. c.), Bassus hispani-cm, Pimpla Ghilianii, Cryptus andalusicus, Ichneumon melanopterus, nigricornis,bieticus, erythrurus, unifasciatus.

Braconides . —Prom the same country are, Bracon bceticus, bicolorator,Agalhis batica, Spinola (1. o.) The latter is Ag. ccesa, Kl., in Waltl’s ‘ Reise.’An undetermined Braconid , bred out of Callidium sanguineum, has beendescribed by Goureau. (Ib. p. 104, tab. iv.)

Evaniales. —Westwood’s Memoir on ' JEvania, and some allied genera ofHymenopterous Insects,’ already noticed (Report for 1841, p. 267), hasnow appeared in the £ Transact, of the Ent. Soc. of London, ’ and illustratedwith numerous figures. The genus Eoania, in the present enumeration,contains thirty species, among which is one new, E. mtennalis, W., fromBombay . Fcenus has received an accession in P. gracillimus, from Demerara,and Spain is assigned as the native locality for F. dorsalis. Aulacus, also,has acquired a new species, A. congener, locality unknown.

Some remarks on Evania have been made by Guerin. (Rev. Zool. p. 333.)