Ichneumonidae. 603 
Head usually small, elyp. convex a. usually compress. from the 
sides; h.-tib. thick. a. usually more or less constrieted at base 
Tribe XII Plectiseini. 
Schwierigkeiten für den Anfänger, sich in dem eigenthümlichen Verlauf 
im Vorderfigl. der Ophionen zurecht zu finden. Kriechbaumer (2) 
p. 20. Anmerkung. 
Tribus I. Hellwigiini. 
(= Hellwigioidae Fam. 6 Först. 1868 = Helwigiina Trib. Thoms. 1887 = Hell- 
wigiini Ashm. 1894) p. 85—86. 
Hierher die Gatt.: 640. Hellwigia Grav. p. 86. 
Hellwigia obscura u. elegans.. Deutung, Vorkommen. Kriechbaumer (2) 
p. 18—19, 
Tribus II. Ophionini. 
(= Ophionoidae Fam. 7 Först. 1868 — Ophionina Trib. Thoms. 1887 = Ophionini 
Trib. VII Ashm. 1894 = dito Trib. II Ashm. 1900) p. 86. 
Hierher die echt. Ophion. nebst Verw. — Untersch. von and. Tribus siehe 
Uebersicht. 
Uebersicht üb. die im Fo!g. m. No. 641—652 bezeichn. 12 Gatt. (p. 86—87): 
641. Gravenhorstia Boie = Odontopsis Först. p. 86. — Odontopsis siehe 
Gravenhorstia. — 642. Ophion Grav. p. 86. cf. Pleuroneurophion. — 
644. Thyreodon Brull& p. 87. — 650. Ophionopterus Brull& p. 87. — 651. Reta- 
nisia Cam. p. 87. — 652. Agathophiona Westw. p. 87. — 646. Banchogastra 
n.g. p. 87. — 647. Pyenophion n. g. p. 87. — 648. Eremotylus Först. — 
649. Enicospilus Curt. — 643. Pleuroneurophion n. g. p. 86. — 645. Athyreodon 
ne B.87. 
Ophioniden. Auffassung. Kriechbaumer (2). 
Ophionen. Thomson’'s Eintheilung. Kriechbaumer (2) p. 21. 
Athyreodon n. g. (Type: A. thoracicus Ashm. manuser.). Ashmead p. 87. — 
Untersch. v. Thyreodon: Transv. med. nerv. in h.-wings broken above the 
middle. 
Clyp. anteriorly subangularly pointed; med. a. submed. cells in front-w. 
equal; ocelli not large, separ. from each other a. the eyes; eyes not 
extend. clearly to the base of the mand.; alw. w. a space betw. 
Thyreodon. 
Clyp. ant. not subang. point.; med. cell. long. than the submed.; ocell. 
large touching each oth. or very close a. also close to the eye margin.; 
eyes very large, extend. clear to the mand. a. emarg. within, oppos. the 
antenn. Athyreodon. 
Athyreodon Aawaiiensis Ashmead, Fauna Hawaiiensis vol. I p. 343 Taf. IX 
Fig. 2 (Hawaii). 
Banchogastra n.g. (Type: B. nigra Ashm. manuser. — Hawaii). Ashmead p. 87. 
— Untersch. v. Pyenophion n. g.: Abd. long. than the head. a. thor. united, 
but never twice as long. 
Dise.-cub. nerv. originat. from, or interstit. w., the disc. nerv.; transv. 
med. nery. in h.-w. brok. at a right angle much below the middle; 
