406 ATTEMPTED DIVISION OF BRITISH INSECTS. 



ligula always produced, but short and entire ; labial palpi three- 

 jointed ; ocelli three ; head very large, square ; fore-wings with a 

 single nervure, often ciliated ; hind with none ; body often short 

 and depressed in the males, more elongate and pointed in the 

 females ; oviduct of the female slender, mostly concealed ; colour 

 mostly brilliant. Perilampus, Leucospis, Smiera, Chalcis, Calli- 

 mome, Pteromalus, Encyrtus, Eulophus, Spalanyia, Eucharis. 



Natural Order. — Cynipites. 



Larva inhabits and causes the excrescences we observe on the 

 trunks, twigs, leaves, &c. of trees, particularly the oak, and 

 commonly known as " galls," feeding on the sap or substance. 

 Pupa changes in the cavity made by the larva. Imago, with the 

 antennae composed of thirteen to fifteen joints, increasing in size 

 exteriorly, but never clavated ; mandibles obtuse ; maxillae 

 dilated, obtuse, feelers often five-jointed ; labium short, with its 

 ligula produced, generally as long as the feelers, entire ; feelers 

 mostly three-jointed; wings with many nervures; head rather 

 small, somewhat retiring ; mesothorax large and convex ; podeon 

 short, very slender ; body compressed ; decatory in the female very 

 large ; ovipositor curved, or spirally convoluted beneath the body. 

 Beaten out of trees, and off grass, in the summer. Cynips, 

 Fiyites, Ibalia, Anacharis. 



Natural Order. — Evaniites. 



Larva inhabits the larvae of Sphecina, and occasionally of Blattina. 

 Pupa changes within the cocoon spun by the larva of the former 

 of these Stirpes. Imago, with antennae thirteen-jointed, of uniform 

 thickness, and very straight ; mandibles short, stout, acute, and 

 bifid ; maxillae dilated and obtuse, feelers six-jointed ; labium, with 

 the ligula very short, quadrilobed, the lateral lobes very minute, 

 feelers long, often robust, four-jointed ; wings with many ner- 

 vures ; podeon slender. Found in summer, flying over flowers 

 and about sand-banks, in which the Sphecina have formed their 

 burrows and provided for their young. Evania, Br achy y aster, 

 Fcenus, (Pelecinus ? Stephenus ?) Plancus. 



Natural Order. — Braconites. 



Larva more obese, without distinct markings and divisions ; feeds, 

 often in company, on the larvae of Lepidoptera, and other insects, 

 while they are still living. Pupa changes within the skin of the 

 Lepidopterous larva, or in small silken cocoons, attached to the 



