Parasitic Qhalcididce and Proctotriipidce, 495 



1 triangulari, marginali 1, hac nervum brevem (cum nervo longitudinali 

 connexum) postice emittenti. 



Thorax ovate; scutel raised, transversely depressed at the base; ab- 

 domen smaller than the thorax, and broadly ovate ; antennae in the females 

 rather longer than the body, filiform, and 13-jointed; wings large, having 

 1 costal, 1 triangular basal, and 1 marginal or radial cell ; the last emitting, 

 at its hinder part, a short straight nerve, which is united to a longitudinal 

 nerve. 



Spec. 1. Allotr. vfctrix Westw. Nigra, nitida; capite fulvoj antennis 

 fuscis ; basi pedibusque totis ochreo-testaceis. 



Longitudo corporis lineas f . Expansio alarum 2 lineas. 



Black, shining ; head fulvous ; antennae dark brown ; the base and the 

 entire legs being ochreous. 



As heretofore, I conclude by describing a few other singular 

 parasitic Chalcididse and Proctotrupidae, first requesting the 

 student to erase the name of Gastracanthus, which I have 

 proposed in p. 121. (Latreille having employed it for a genus 

 of spiders), and to substitute that of Hetroxys *, having the 

 same signification ; also to correct the characters of Cepbalo- 

 nomia, described in p. 420, which has 12- not 10-jointed 

 antennae in both sexes. The figure of these organs in the 

 magnified representation of the insect is correct. 



Ceraptero'cerus Westw., Encyrto affinis ; differt praecipue, antennis 

 maximis latis, planis (antennas Cerapteri referentibus); nervoque stigma- 

 ticali apice nervi costalis remote 



Differs from Encyrtus in the very large, broad, and flattened antennae, 

 which somewhat resemble those of the coleopterous genus Cerapterus 

 (whence the derivation of the generic name) ; and in the stigmal nerve 

 being placed at some distance from the apex of the costal nerve. 



Sp. 1. Cera.pt. mirabilis Westw. Niger, vertice, thoracisque dorso aureo- 

 viridibus ; mesalis \ vel alis anticis nigris, singulo maculis 8 (forma variis) 

 albis ornato ; pedibus nigro ochreoque variis. 



Long. corp. 1 lin. Expans. alar. 2lin. Prope Londinum et Canta- 

 brigiam. 



Black, with the crown of the head and the back of the thorax golden 

 green ; the wings black, each having eight white spots of different form, 

 legs varied with black and ochre. Near London and Cambridge. 



Dero'stenus J Weshu.y Closterocero affinis. Caput magnum ; antennae 



* He Iron, the abdomen, and oxys y acute. 



f The designation of the limbs attached to the respective thoracic seg- 

 ments, by prefixing the terms pro, meso, or meta to the name of the organ 

 intended to be designated, according to its attachment to the prothorax, 

 mesothorax, or metathorax, is an improvement for which we are indebted 

 to Mr. Ilaliday. Hence, the anterior wings, being attached to the meso- 

 thorax, must be termed the mesalae, and not proalae. Setting aside the 

 barbarous nature of these compound Latin and Greek names (which may 

 be remedied by employing the terms medithorax and post- thorax), an 

 objection, however, exists against their general adoption ; namely, that 

 entomologists are not agreed as to the names to be given to the primary 

 divisions of the thorax. See Kirbyand Spence's Introduction, vol.iii. p. 531. 



$ Dere, the neck, and stenos, narrow. 



