1969] 
Evans — Cretaceous Wasps 
257 
and a small terminal projection which probably represents the sub- 
genital plate. (I believe this specimen is a male, even though only 
six abdominal segments can be detected.) 
Specimen in a small block of amber from Cedar Lake, Manitoba 
(Upper Cretaceous). 2 Collected by F. M. Carpenter, MCZ no. 
6875. 
Procleptes, new genus 
Based on a single specimen in amber, in good condition although 
with some distortion and compression of the head and thorax, and 
with the wings absent beyond the basal fifth (Figs. 4, 5). The 
more striking features are as follows: mandibles rather large, with 
four apical teeth (but the left mandible with only three evident 
teeth, the basal one rather broad) ; palpi apparently short (but may 
be broken off or distorted) ; antennae arising far below eyes, promi- 
nently geniculate, with a long, slender scape and a somewhat longer 
flagellum of about 12 segments (cannot be counted precisely; both 
flagella lie longitudinally beneath the head and appear to be broad- 
ened and flattened on the apical two-thirds, but this may be the 
result of distortion) ; front with a strong median groove; eyes large, 
not hairy, ocelli well developed. Pronotum elongate, its posterior 
margin arcuately emarginate; mesoscutum and scutellum narrow 
and elongate, separated by a groove (but much compressed and dis- 
torted; parapsidal furrows and notauli not visible) ; propodeum with 
a large, acute process on each side; wings with several veins as 
figured ; legs elongate, covered with short hairs but without spines 
except for a few short ones on the tarsi; tibial spur formula 1-2-2; 
front coxae with apical spine-like processes; claws rather large, 
apparently simple; basal half of abdomen broad, depressed but not 
evidently concave ventrally, apparently consisting of four segments 
as figured ; apical half of abdomen in the form of a long tube, con- 
sisting of three segments, the tip of the sting protruding from the 
end of the apical segment. 
Type species: Procleptes carpenteri, new species 
The name Procleptes was chosen to suggest that this wasp may 
be a member of the stock which gave rise to the modern genus Cleptes 
2 For a discussion of this locality and descriptions of other insects, see 
Carpenter et al (1934). Richards (1966) presents evidence that this amber 
is at least 72-73 million years old and probably dates from the early Upper 
Cretaceous, at a time when the climate of this part of Canada was mainly 
tropical. McAlpine and Martin (1969) give a detailed account of the oc- 
currence of the amber and its probable origin. 
