Ichneumonidae. 481 
Unterschiede von den and. siehe Subf.-Uebersicht. Charakt. Untersch. von 
d. Ichneumonini „a more or less distinet, longitudinal grooved line or furrow, 
sometimes punctate or erenulate, situated low down on the mesopleura and which 
separates the mesosternum from these selerites.“ 
Uebersicht über die 7 Tribus (p. 24—5): 
Metathorax without distinet longit. carin. or at the most with only the 
pleural carinae present, the petiolar area always wanting, usually with 1 or 2 
transv. carin. or with none, stigma most frequently narrowed, lanceol. apt. and 
subapt. forms common 2. 
Metath. with longitud. car. and usually more or less compl. areolated, 
the petiolar area present; stigma usually widened, triang., subtriang., or ovate; 
subapt. forms rare. 
Metath. usually produced beyond the insertion of hind cox., the petiol. area 
a. the areola usually confl. a. extend. clear to the base, ovipos. very short, at 
the most subexserted. Tribe I. Stilpnini. 
Metath. not prod. beyond the h. cox.; ovipos. exserted. 
Front wings with a. compl. areolet; head usually quadr.; antenn. and legs 
most frequently stout Tribe I. Phygadeuonini. 
Fr. w. w. the ar. incompl., open behind or wanting, head not or rarely 
quadr.; antenn. a. legs usually slender. , 
Bas. nerv. not strongly curved inwardly Tribe III. Hemitelini. 
Bas. nerv. strongly curv. inwardly Tribe IV. Pezomachini. 
2. Wings fully developed 3. 
Wings absent or abbreviated Tribe IV. Pezomachini. 
Metanotum not areolated Tribe IV. Pezomachini. 
3. Fr. w. with the stigma narrowed, the areolet variable, pentag., or small 
quadr., sometimes almost punctif., more rarely open behind or entirely 
abs.; disc. cell with the lower apic. angle straight or obtuse, the bas. 
nerv. not strongly curved inwardly; abscissa of costa long 4. 
Fr. w. with the stigma broad, triang., the areolet pentag. in position but 
open behind, the bas. nerv. strongly curved inwardly; abseissa short. 
(Male.) Tribe IV. Pezomachini. 
4. Areolet entirely wanting Tribe V. Hemigasterini. 
Areolet distinet, usually large; never very small, and always pentag., the 
sides converg. above or parallel. Tribe VI. Cryptini. 
Areolet small, quadr., sometimes almost punctif., sometimes open behind, 
but never pentag. in position Tribe VII, Mesostenini. 
Tribus I. Stilpnini. 
(= Stilpnoidae Fam. 28 Först. 1868 = Stilpnina Tribes Thoms. 1873 u. 1884, 
Stilpnini Tribe I Ashm. 1894 u. 1900 (in Smith’s Insects of New Jersey, 
p- 568). Von Ichn. gen. untersch. d. longit. Furche, die das Mesosternum 
v. d. Mesopleuren trennt. Fern. Charakt. ‚‚the non-exserted or at most 
subexserted ovipositor“. Bei all. auss. 2—3 Gatt. Metathor. lang, allmähl. v. 
d. Basis n. d. Spitze zu abschüssig ete. Die meist Spez. glänz. polirt, 
Abd. lang, mehr od. weniger zusammengedrückt etc. Uebersicht über die 
im Folg. m. No. 104—111 bezeichn. 8 Gatt. (p. 25—6): 
Arch, f. Naturgesch. Jahrg. 1901. Bd. II. H.2. 31 
