278 Entomological Society. 
of that genus. The President, however, was unwilling to admit that 
the case mentioned by Mr. Westwood was an instance of retarded 
development, and contended that reproduction was capable of occur- 
ring throughout all the orders of insects, as it was now proved to 
be throughout the Crustacea, Arachnida and Myriapoda; and Mr. 
Desvignes mentioned the fact recorded by Reaumur, that the hairs 
of caterpillars, when shaven off previously to moulting, were repro- 
duced on the shedding of the skin. [See the account of Mr. New- 
port’s subsequent experiments on this subject given at the meeting 
of the 7th October 1844. ] 
A memoir was read ‘‘On the Economy of the genus Palmon, Dalm.” 
By J. O. Westwood, F.L.S. 
After alluding to the singular economy by which the female Jch- 
neumonide are enabled to introduce their eggs into various substances, 
within which are contained the insects upon which their larve are 
destined to feed, and giving an extract from an anonymous writer in 
the Entomological Magazine respecting the production of specimens 
of one of the Chalcidide from the egg-cases of the Mantide, the 
author states that the latter insect evidently belongs to the genus 
Palmon of Dalman (Swed. Trans. 1825), founded upon a species 
observed in gum copal, and that the Priomerus pachymerus of Walker 
is another species of the genus; and then illustrates the genus in 
detail, and describes the following species, the majority of which 
possess the same singular habits. 
Sp. 1. Palmon bellator, Dalm. 
Sp. 2. Palmon clavatellus, Dalm. 
Sp. 3. Palmon pachymerus (Priomerus pach., Walker). 
Sp. 4. Palmon religiosus, Westw. Niger, subeneus ; thorace te- 
nuissimé punctato; antennis nigricantibus, articulo basali luteo ; 
abdomine piceo, subtis magis luteo, dorso eneo tincto nitido ; pe- 
dibus luteis, coxis posticis, dentibusque femorum posticorum nigris, 
oviductu corpore fere dimidio longiort (). Long. corp. lin. 14. 
—Hab. in ovis Mantidis religiuse. D. Kollar. Mus. Hope. 
Sp. 5. Palmon insularis, Westw. Cupreo-nigricans, vix tenuissime 
punctatus, collari magis cuprescenti ; antennis nigricantibus, basi 
fuscis ; abdomine chalybeo-nitido, basi subluteo, oviductu vix cor- 
poris longitudine ; pedibus anticis albidis, femoribus in medio in- 
Sumatis, coxis et femoribus posticis cupreo-eneis, apice tarsis- 
gue albidis (?). Long. corp. lin. 13.—Hab. in ovis Mantidis ex 
“Tle de France.” D. V. Audouin. Mus. Westwood. 
Sp. 6. Palmon fraternus, Westw. Ceruleo-viridis, tenuissime punc- 
tatus ; antennis crassiusculis luteis, apice fuscescentibus ; abdo- 
mine purpureo nitidissimo, subtis luteo, oviductu abbreviato ; pe- 
dibus luteo-fulvis ; coxis et femoribus posticis eneis vel chalybeis, 
apice extremo luteis ($9). Long. corp. lin. 14.—Hab. cum 
precedente. Mus. Westw. 
Sp. 7. Palmon obscurus, Westw. Niger, eneo vir tinctus, fere levis, 
opacus ; antennis nigris, basi articuli \mi luteo, articuloque api- 
cali albido ; abdomine nigro, submetallico, nitido, oviductu corpore 
fere dimidio longiori ; pedibus 4 anticis piceo-luteis, posticis ni- 
