HYMENOPTERA. — CHRYSIDID. 175 
terminated by a large pilose outer lobe, the inner lobe being smaller 
and slightly produced (fig. 79. 3.). The maxillary palpi are 5-jointed ; 
the mentum is somewhat goblet-shaped, the labium membranous 
and more or less exserted, with the sides turned up in dried speci- 
mens (fig. 79. 4.): the labial palpi are short, and 3-jointed. The 
antennz are filiform (fig. 79. 2.), elbowed at the extremity of the 
long basal joint, and composed of 13 joints in both sexes (fig. 79. 11. 
antenna 4, 12. ditto 9 of Cleptes). The thorax is oblong, and some- 
what cylindric, the segments of which it is composed being strongly 
determined, the collar and mesothoracic scutellum being large and 
transverse, the mesothoracic scutum with well-defined parapsides, 
and the metathorax being produced on each side at the extremity 
into a spine. The upper wings are furnished with one marginal or 
costal cell, which is often unclosed at the extremity, and the terminal 
veins are more or less indistinct; thus closely resembling Bethylus 
and Anteon: the hind wings are almost veinless. The legs are weak, 
and of moderate length, the anterior pair in the females not being 
ciliated (fig.79.13. fore-leg of Cleptes 9 ). The abdomen is more or less 
oblong-ovate, convex above, and concave beneath; nearly rounded or 
semicircular in Hedychrum, in which its extremity is entire; whilst 
in Chrysis it is terminated by a series of denticulations, and the last 
segment is further distinguished by a transverse row of deep punc- 
tures. In Chrysis it appears to consist of only three segments ; but in 
Parnopes the males have four, and the females three, abdominal seg- 
ments; and in Cleptes the males have five, and the females four, 
joints. The other terminal retractile segments are capable of being 
protruded nearly to the entire length of the abdomen (fig. 79. 5.), 
and are furnished at the extremity in the males with the organs of 
generation, and in the females with a minute sting-like ovipositor *, 
defended by two compressed semi-cylindrical styles, of the same length 
as the ovipositor itself. My figure (79. 6.) represents the under side 
of the extremity of the body, with the terminal segments exserted. 
In fig. 79.7. the extremity of this apparatus is more highly magnified, 
and exhibits the basal portion (4) and the terminal portion (6 6) of 
the two valves, and the ovipositor enclosed between them (c). Fug, 
* Latreille and especially Dahlbom describe this instrument as a sting; but it is 
unconnected with glands secreting a poisonous fluid, although the insect is able to 
puncture the flesh when handled. 
