Tt 
INSECTA. Sta 
Family XIX. Oxyura s. Proctotrupti Late. (Codriné DALMAN, 
Nees von Essenpeck, with addition of other genera.) Inferior 
Wings without nervures, superior either in like manner without any 
nervures, or with few and longitudinal only, destitute of cubital 
cell and often of humeral likewise. Antenne with 8—15 joints 
(in most 10—12), filiform or thicker towards extremity, in males 
mostly longer, in females sometimes clavate. Borer or ovipositor 
at the extremity of abdomen, in some exsert, conical, in others re- 
tractile within the abdomen, containing three sete. 
These tatl-boring ichnewmons are mostly very small, some only 
1 or 2 line in size, or even smaller (Jehnewmon atomus L.), so 
that the investigation of the oral parts is rendered very difficult, 
and the characters derived from them are often insecure. The head 
in most of them is broad, the thorax long, the abdomen oval or 
conical. In some there are no wings, or very imperfect wings 
(especially in females) ; some have only four joints in the tarsus 
(Uphitrachelus Hauipay, Wymar, &e.), which has also been observed 
in the family of the Chalcidic, a remarkable anomaly in the Hymen- 
optera. The economy of the greater part is unknown ; but we may 
conclude, from those whose metamorphosis is known, that their 
larve live parasitically in other insects, like the true Jchnewmons, 
with which Linna&us united the few species that were known to him. 
The larve of Platygaster live as parasites in those of the genus 
Cecidomyia (Diptera). Other species lay their eggs in the eggs of 
other insects (especially of Lepidoptera and some Hemiptera). To 
these belongs the /ehnewmon ovulorum L., according to Haumpay a 
species of Mymar, and also the genus Z'eleas. 
Comp. on this family C. G. Nres von Essenseck, Hymenopterorum Ich- 
neumonibus afinium Monographie, Stuttgartie et Tubing, 1834, 8vo. II. 
pp- 311—397; and Westwoop, Jntrod. to Modern Classific. of Ins. 11. 
pp. 167—173; as also the works of Haipay there referred to, and other 
English entomologists. 
Mymar Hauipay. (Palps none?) Antenne 13—10 jointed in 
males, long, broken, 10—9 jointed, clavate in females. Wings 
narrow, often linear, anterior broader at the extremity (spatulate), 
ciliated on the margin. Abdomen in some sessile, in others peti- 
olate. 
Sp. Mymar pulchellus WALKER, GuéRIN, Iconogr, Ins. Pl. 68, fig. 6; Her- 
RICH-SCH&FFER, Deutschl. Ins. Heft 184, Tab. 135, (fig. copied'in Curtis, 
Brit. Entom. Tab. 411). 
