596 Dr. Rob. Lucas: Entomologie. Hymenoptera 1901. 
Post. tibiae with 1 or 2 apic. spurs 2, 
Post. tib. without apic. spurs. 
24 a. 3d abd. sgms. without lunulae Tribe II Oteniseini. 
2. Post. tib. w. only 1 apie. spur A 
Post. tib. w. 2 apic. spurs. 
Abd. sess. or subsess., nev. distinetly petiolate 52 
Abd. distinctly petiolate. 
Claws simply, not pectinate Tribe I Mesoleptini. 
Claws pectinate Tribe III Otenopelmini. 
3. Claws pectinate. 
Claws simple, not pectinate Tribe III Ctenopelmini. 
‘ Mand. bidentate Tribe IV Tryphonini. 
Mand. tridentate . Tribe V Bassini. 
4. Middle tib. w. only 1 apic. spur 6. 
Middle tib. w. 2 apic. spurs 
Face norm. not swollen 5, 
Face abnorm., greatly swoll., h:-femor. usually short a. much swoll. 
Scape lengthened, not short, globose 
Tribe VI Orthocentrini. 
Scape short, globose Tribe VII Exochini. 
5. Abd. sess.; dors. of 1st a. 24 sgms. w. 2 parall. carinae 
Tribe VIII Tylecomnini. 
Abd. petiol., the petiole long; dorsum of 2d sgm. without carinae; 
scutell. margined ; areolet in front wings not large, subsess. rhomboid 
Tribe IX Sphinctini. 
6. Face a. seutell. norm. Tribe II Cteniseini. 
Face scutatif.; scutell. quadrang., margined laterally; abd. long, sess., 
the sides parallel or nearly, coarsely punctate; areolet in front- 
wings usually large, lozengoidal, or diamond-shaped 
Tribe X Metopiini. 
Tribus I. Mesoleptini. 
(= Tryphonides homalopi Holmgr. (part.) 1855 = Mesoleptoidae Fam. 35 Först. 
= Mesoleptina Trib. 1883 — Mesoleptini Tribe I Ashm. 1894 u. 1900 
dito Davis 1897) p. 64). 
Im deutl. gestielt. Abd. übereinstimm. m. Ichneum. u. Crypt. u. einig. Ophion., 
von allen (ausser einig. Form. d. letzt. Trib.) sofort unterscheidb. durch gerad., 
nicht ellenbogenf. Petiol., Lage d. Spirac. in od. vor d. Mitte. Von d. wenig. 
Ophion.-Gatt. m. gleich. Spirac.-Lage versch. d. nicht komprim. Abd. Letzt. 
endet auch nicht b. d. & in 2 lang. Dorn. Von der einz. noch zu verwechs. 
Gruppe d. Ctenopelm. versch. d. einfache, nicht gekämmte Klauen. 
Uebersicht über die im Folgend. mit No. 418—453 bezeichn. 36 Gatt. 
(p. 64—67): 
442. Alexeter p. 66. — 451. Asymmictus p. 66. — 438. Callidiotes p. 65. 
— 429. Catoglyptus p. 65. — 452. Clepsiporthus p. 66. — 449. Diedrus p. 66. 
— 437. Dizemon p. 65. — 419. Eelytus Holmgr. p. 64. — 453. Euryproctus 
Holmgr. p. 67. — 430. Gausocentrus p. 65. — 448. Genarches p. 66. — 
441. Hadrodactylus p. 66. — 447. Himerta p. 66. — 433. Homalomma p. 65. 
