410 
Dr. Rob. Lucas: Entomologie. Hymenoptera 1900. 
freq. with a comb.; h.-tib. in 2 fregq. serr. a. spin., or only spin., more 
rarely smooth, without spines, exe, in &. 
2. ventr. sgm. always without a transv. grooved line, impress. or 
emarg.; h.-tib. in @ never serr., although usually spined in both sexes; 
stigma rarely well develop. 2. 
2. ventr. sgm. in Q w. a distinet transv. grooved line, impress, or 
emarg.; stigma well develop. 
H.-tib. in Q most freq. strongly serr. a. also spinous, rarely without 
teeth or indistinetly serr., in the latter case w. a strong longitud. ridge; 
in 5 simple, neither serr. nor spinous, the h.-tars. very long, oft. more or 
less curved; 2. ventr. sgm. with a transv. groov. line or emarg. in both 
sexes Subf. I. Pepsinae. 
H.-tib. in both sexes smooth, without teeth or spines, at the most 
with very minute, scarcely perceptible or feeble spines, never w. a distinet 
longit. ridge; 2, ventr. sgm. w. the transverse groov. line present in ® only, 
abs. in g.. Subfam. II. Ageniinae. 
H.-tib. in both sex. smooth, without spines, or at most with very minute, 
scarcely perceptible or feeble spines. 
H.tib. in both sex. always strongly or distinetly spined, the spines 
always developed. 
Antenn. insert. on the anter. margin of the head on or below an 
imaginary line drawn from the base of the eyes, head antero-posteriorly 
very thin, the face, clyp. a. temples in @ very flat. 4. 
Antenn. insert. far above such a line, or on or near the middle of 
the face, or at least considerably above the basal suture of the clyp., head 
norm., or nearly, front w. w. 2or 3 cub. cells. 
Clyp. anteriorly not produced, truncate or emarginate, not wholly 
covering the mandibles; pronot. rarely long. Subf. III. Pompilinae. 
Clyp. anter. semieircul. produced, covering the mandibles; pronot. 
always long, at least as long as the meson. Subf. IV. Planicepinae (pars) 
. Front wings w. 3 cub. cells. 
Head anter.-posteriorly not especially thin, face a. clyp. at least, sub- 
conv., never flat; the antenn. inserted on or near the middle of the face, 
always considerably above an imaginary line drawn from bases of eyes 
(Z' only). Subf. II. Ageniinae. 
Head antero-post. very thin, face a clyp. very flat, antenn. inserted 
towards the anter. marg. of the head on or just above an imaginary line 
drawn from bases of eyes (9 a. Q). Subf. IV. Planicepinae (pars). 
. Pronot. as long or long. than the meson.; front cox. long, usually longer 
than the h.-cox., the front femor. in Q oft. much swollen or greatly in- 
crassated. Subf. IV. Planicepinae. 
. Pron. very long; metan. as long or long. than the meson., eyes entire, not 
at all emarg. within; antenn. in Q after death, involute at tips; cubit. in 
h.-w. interstit. or originat. before tbe transv. med. nerv.; h.-tib. not or 
rarely longer than their femor., usually shorter. Subf. V. Notocyphinae. 
Pron. not long, short. than meson.; metan. short, much short. than the 
meson, a. obliquely trunc. posteriorly; eyes subemarginate within; antenn. 
