HYMENOPTERA. 225 
The fourth tribe, that of the Cuatcip1, Spin., only differs essentially 
from the preceding one in the antennz, which are geniculate, those 
of the Euchares alone excepted, and which, froin the elbow, form an 
elongated or fusiform club, of which the first joint is frequently 
lodged in a groove. The palpiare very short. The radical cell is 
usually wanting; there is never more than one cubital cell, which is 
not closed. The number of joints of the antenne, never exceeds 
twelve. 
We may refer the various genera established in this tribe to the 
Cuatcis, Fab. 
These Insects are very small, and are decorated with extremely 
brilliant metallic colours; most of them enjoy the faculty of leaping. 
The ovipositor, like that of the Ichneumons, is salient and frequently 
composed of three threads; the larvee are also parasitical. Some of 
them, on acéount of their extreme minuteness, live in the interior of 
the almost imperceptible ova of Insects. Others inhabit galls and 
the chrysalides of the Lepidoptera. I suspect that they do not spin 
a cocoon. 
Some, in which the antenne always present eleven or twelve joints, 
have the posterior thighs very large and lenticular, and their tibiee 
arcuated. 
Here the abdomen is ovoid or conical, pointed at its extremity, and 
pediculated; the ovipositor is straight, and rarely salient or external. 
The wings are extended. 
Some are known in which the antenneze of the males are flabelli- 
form. 
Currocera, Lat.* 
Those of the others are simple in both sexes. 
CuHA.cis, proper.—VeEspPA, SpHex, Lin. 
Some have the abdominal pedicle elongated; such are those found 
in marshes, and called sispes and clavipes by Fabricius. They are 
both black. The posterior thighs of the first are yellow; those of the 
second are fulvous. 
M. Dalman—Aual. Entom., p. 29—has formed the new genus 
Dirruinus, with an African species of this division, that is remarkable 
for its deeply bifid head, which, as well as the mandibles, is prolonged 
anteriorly. 
Two other species, inclosed in amber, where the antenne suddenly 
terminate in a large ovoid and triarticulated club, and where the ovi- 
positor is salient and as long as the body, seem to him to form a par- 
ticular genus, which he calls Panmon. See his Memoir on the In- 
sects inclosed in Amber, V, 21—24. 
In the others, the pedicle of the abdomen is very short. Such are 
C. minuta; vespa minuta, L. Very common on the flowers 
of umbelliferous plants; black, with yellow iegs. 
* Chaleis pecticornis, Lat., Gen. Crust. et Insect., 1V, 26. 2 
