21,3 Weld: Notes on the Liopterinze 325 
6. Malar space one-third eye. Front metatarsus equal to 2-5 united 
(Plate 1, fig. 3). Hind tibia smooth with two equal spines and one 
shorter opposite..... Mesocynips Cameron. 
Malar space as long as eye. Front metatarsus equal to 2-4 united. 
Hind tibia with longitudinal ridges and two equal spines at apex. 
Dallatorrella Kieffer. 
7. Seutellum rounded behind. Antenne laterally compressed. South 
America........ Peras Westwood. 
Scutellum with two teeth behind. Antenne filiform. South America. 8. 
8. Propodeum conical with abdomen attached at apex; that is, the dorsal 
and ventral lengths equal. Africa Heterocynips Kieffer. 
Propodeum with dorsal distance to petiole horizontal, straight, and 
much shorter than the ventral, which is much longer and very convex 
(Plate 1, fig. 4)... : at Liopteron Perty. 
Genus PARIBALIA novum 
This new genus in Liopterine differs from Pseudibalia Kieffer, 
founded on a species from Mexico, by having the tarsal spur 
not on the inner but on the outer side of the metatarsus, and 
in having the petiole transverse instead of three or four times 
as long as broad (Plate 1, fig. 2). In habitus it resembles 
Allocynips Kieffer which has no prolongation on any tarsal seg- 
ment, but both have the aspect of an Ibalia except that the 
abdomen is shorter and not so strongly compressed. . 
Head broader than thorax, not broadened behind eyes, malar 
space without groove, cheeks margined. Antenne arising above 
level of middle of eyes, 13-segmented in female, 14-segmented 
in male, all flagellar segments cylindrical and closely joined in 
both sexes, segment 3 always shorter than 4. Pronotum broadly 
truncate, with median tooth on hind margin. Mesoscutum 
coarsely and transversely sculptured, scarcely arched. Parap- 
sidal grooves complete. Scutellum rounded behind with two 
pits at base. Propodeum with its distinct neck for the attach- © 
ment of abdomen as far from the hind coxz as from metanotum, 
the usual carine stout, curved outwardly, inclosing an area 
crossed above middle by a transverse ridge above which is a 
single median, and below two parallel longitudinal ridges as in 
Allocynips. Wing pubescent and ciliate, without areolet, radial 
cell closed. Spur at apex of hind metatarsus on outer side and 
not reaching end of second segment, its end truncate. All claws 
simple. Petiole not longer than proad, longitudinally ridged. 
Abdomen twice as long as high, somewhat more compressed in 
the female than in the male but not knifelike as in Jbalia. In 
side view tergite 4 is largest in male and 5 in female, 2 and 3 
and 2 to 4 not liguliform, dorsal edge back of tergite 2 sharp in 
female, not in male. 
