408 
Dr. Rob. Lucas: Entomologie. Hymenoptera 1900. 
freg. filif., inserted close to the anter. border of the head; 13-joint.; sentell. 
convex, conic., or spined rarely flat. Fam. XXXI Chrysididae. 
Metath. ang]. rarely toothed or acutely produced, the metanot. posteriorly 
squarely trunc. or round., not concave; scutell. norm., or in some wingless 
Q entirely abs., antenn. filif. or subelav., rarely flabellate in some si abd. 
always w. more than 5 dors. sgms. 
H.-wings with a. distinct venation, a. always without anal lobes, 9 never 
apterous. 4. 
H. wings without a. dist. ven, a. always with an anal lobe; ® often 
apt., middl. tib. w. 2 apic. spurs; antenn. 10-to 26-jointed. 
Fam. XXXIIL Bethylidae. 
. Troch. 2-jointed, middle tib. w. 2 apie. spurs: eyes norm., not emarginate 
within, antenn, long, filif., 15-jointed or more, similar in both sexes. 
Fam. XXXIII. Trigonalidae. 
Troch. 1-joint.; mid. tib. w. 1 apic. spur; eyes renif. or emarg. within; 
antenn. in @ 12-joint., in $ 13-joint. Fam. XXXIV. Sapygidae. 
Middle coxae contigucus or nearly 2 
Middle cox. distant, usually widely separated 6. 
Stigma in the front wings not well develop., at the most only slightly 
develop., eith. very small or lin.; eyes most freq. emarg. within; mid.-tib. w. 
2 ap. spurs. 
Pygid. in g' deeply emarg. at apex, the hypopyg. terminating in a sharp 
thorn or aculeus, which curves upw. a. rests in the emarg. of the pygid., 
elaws cleft. Fam. XXXV. Myzinidae. 
Pygid. in & entire or at most w. only a. slight sinus, the hypopygium 
terminating in 3 spines; claws simple. Fam. XXXVL Scoliidae. 
Stigm. in fr. w. well develop., ovate or subovate, eyes entire, never emargi- 
nate within; pygid. in & entire, the hypopyg. terminating in a sharp aculeus, 
which curves upward. Fam. XXXVIL. Tiphiidae. 
2 always apterous a. frequently, but not always, without ocelli; eyes 
variable. 9. 
Q always winged, with ocelli; eyes large, always extending to base of 
mand. 8. 
Abd. sess. or subsess. a. often w. a more or less distinet constriet. betw. 
dors. sgms. 1 a. 2; front wings w. the stigma well develop., the marg. cell 
usually attaining the costa at apex (rarely round. or trune. at apex, w. a 
slight space betw. Cosila a. allies); h.-w. usually without an anal lobe, the 
cub. either interstit. or originat. ai the transv. med. nerv., very rarely 
originating before it; tib. spurs 1, 2, 2; tars. joints norm.; eyes entire; 
ocelli norm.; hypopyg. entire, not ending in a spine or an aculeus. 
Fam. XXXVII. Cosilidae. 
Abd. longly petiol., front wings w. the stigm. small, not well developed, the 
2. rec. nerv. subobsol.; h.-w. bilobed, the cubitus orginating far beyond the 
transv. med. nerv.; tibial spurs very long, straight; tars. joints 2—3 in 2 
dilat., deeply excised or lobed, a. filled w. a membrane betw. the lobes, eyes 
emarginate within, ocell. very large; antenn. very long, filif., the joints w 
a bristle-Jike spine at apex. Fam. XXXIX. Rhopalosomidae. 
N 
