CHALCIS. INSECTS. 



sessile on the plant ; others attached by a short pedicle ; some appear to be merely 

 a thickening or tumefaction of the leaf, as in those found on the willow ; and what is 

 called bedcguar, a species of gall found on the wild rose, is formed of long detached 

 filaments inclosing a nucleus of two or three galls. Of all trees the oak seems that 

 on which most galls are produced ; and they are found also of various forms, isolat- 

 ed or united, rough or smooth, flattened, woody, spongy, or like small buttons. 

 One remarkable species of Cinips was employed by the ancients, and is still employ- 

 ed in the Levant for what is termed caprificution^ that is, the insect is employed for 

 the purpose of hastening the maturity of the fruit. 



C. gallce tifictorice, Lat. (Diptolepis, Oliv.) Body pale brown, and 

 covered with a silky and whitish down ; eyes black ; upper wings 

 with some brown nerves ; abdomen with a blackish brown spot 

 above. 4 lines long. Inhabits the Levant Nouv. Diet. vii. 130. 

 This insect produces the galls of commerce, and is often found well preserved in 



the inside of the gall. 



C. quercusfolii, Lat. Body deep brown and silky, with, some red- 

 dish spots round the eyes, on the thorax and feet ; abdomen deep- 

 er colour, and shining, with a small tuft of hair on the lower part ; 

 antennae and feet with pretty long hairs ; nerves of the upper 

 wings blackish. Inhabits, in the larva state, the leaves of the 

 oak in a round and smooth gall. Nouv. Diet. vii. 330. 



TRIBE IV. -CHALCIDITES, Lat. 



Lower wings without nerves, the upper ones destitute of a cu- 

 bital cell, and the radial generally wanting; palpi always 

 very short ; antennae generally thicker at the end, or ter- 

 minated in a club, and geniculated, with never beyond twelve 

 joints ; ovipositor lodged in a longitudinal groove of the bel- 

 ly, with the extremity projecting ; posterior legs formed for 

 leaping. 



The colours in this tribe are frequently brilliant and metallic. 



I. Posterior feet with the thighs very large, lenticular, and with the legs arched ; 

 antennae with always eleven or twelve distinct joints. 



1. Antennae simple. 



Gen. LEUCOPSIS, CHALCIS, DIRHINUS, (Dalman.) 



2. Antennae flabelliform. 



Gen. CHIROCERA. 

 II. Posterior feet with oblong thighs and straight legs. 



1. Antennae with from nine to twelve joints. 



A. Antennae inserted near the middle of the anterior face of the head, or sensibly 

 distant from the mouth. 



Gen. EUCHARIS, THERACANTHUS, (Brazilian insects, remarkable from the 

 scutellum, which covers the wings;) ETJRYTOMA, AGAOV, (Dalman ;) PE- 

 RILAMPUS, EUPELME, (Delman ;) MISOCAMPUS, (Lat, ;) ( Torymus, Dal- 

 man ;) PTEROMALUS, CLEONYMUS, ENCYRTUS. 



B. Antenna? inserted very near the mouth. 



Gen. SPALANGIA. 



2. Antennae of from five to eight joints. 



Gen. EULOPHUS, (Entodon, Dalman.) 



Gen. CHALCIS, Fab. Lat. Sphex, Lin. Vespa, Geoff. 

 Posterior feet with large thighs of a lenticular form, compres- 



