376 CLASS viii. 



The Chalcidice are small Insects, mostly shining with metallic 

 lustre, many species of which are able to leap, though that is not 

 always the case where the ability might be inferred from the thick- 

 ness of the hind-feet. Their larvse live parasitically in those of 

 other insects, especially of Lepidoptera and Hymenoptera, and also 

 in their eggs ; they are small maggots without feet. The pupae 

 are mostly not included in a web. The number of species of this 

 division is extraordinarily great ; in Great Britain alone nearly 

 1200 species have been found. 



Comp. on this family amongst others, SPINOLA, Essai d'une nouvelle 

 Classification des DiploUpaires, Ann. du Mus. xvn. 1811, pp. 138 152 ; 

 NEES VON ESSENBECK, Hymenopt. IcJineumonib. aff. Moncgr. n. pp. i 310. 

 (Monographia Pteromalinorum, amongst which some families are arranged 

 that belong to the preceding family) ; the monographs of DALMAN and 

 BOHEMAN, in the Trans, of the Swedish Acad. at Stockholm, for 1820 and 

 1833 ; BOYER DE FONSCOLOMBE, Monogr. chalciditum, &c., Ann. des Sc. 

 natur. xxvi. 1832, pp. 273 307, and WALKER, Descriptions of the British 

 Chalddites in Ann. of Nat. Hist. Vol. I iv. 1838, 1839. 



A. Prothorax narrower than mesothorax, attenuated towards 

 the head. Femora of posterior feet scarcely larger than the rest ; 

 tibiae straight. 



Eulophus GEOFFR.J LATE., Entodon DALM. Antennae with seven 

 or eight joints, very rarely with nine, in males sometimes ramose 

 (pectinate with three internal branches). Tarsi with four joints. 



Sp. Eulophus pectinicornis, Ichneumon pectinicornis L., GUERIN, Iconogr. 

 Ins. PI. 67, fig. 15, &c. 



Add sub-genus Cirropsilus WESTW., and several more, on which 

 comp. WESTWOOD, Introd. to modern Classification of Ins. n. Generic 

 Synopsis, pp. 73 75. 



Encyrtus LATR. Antennas eleven- or twelve-jointed. Inter- 

 mediate feet longer than rest, with tibiae terminated internally at 

 the extremity by a strong spine. 



Species numerous ; here belongs a figure of SCHELLENBERG, Tab. Xiv. of 

 Mira mucora by name, placed wrongly amongst the Diptera. 



On several sub-genera, to be referred to Encyrtus, comp. WESTWOOD, 

 1. 1., pp. 72, 73 



Pteromalus SWEDER. (in part), LATR., 

 Antennae eleven- to thirteen-jointed. Middle feet like the rest. 



