some allied Genera of Hymenopterous Insects. 267 



lobis lateralibus ct anticis valde distinctis ; petioliis abdominis 

 elongatus, niger, nitidus ; terebra rufa, vaginis nigris ; alae 

 hyalinae, apice fusco-tinctce, stigmate nigro, areola, costali, 

 apice fusco. 



Sp. 14. Aulacus c'lngulaLus, Westw. 



Rufus, antennis piceis, articulo 7mo albo $ . 



Long. Corp. b'n. 5^, expans. alar. lin. 11. 



Habitat apud Fluvium Cygnoruin, Nov. HoU. 



In Mus. Hope. 



Caput rufum, loeve ; mandibular apice nigrse ; antennje picear, 

 articulis basalibus rufis, 7mo albo, reliquis magis nigricantibus ; 

 thorax rufus transverse striatus, tegulis albidis, lobis anticis 

 mesonoti valde elevatis ; abdomen ovatum petioli brevi, 

 rufum nitidum, basi supra nigrum ; pedes rufi, tibiis 2 posticis 

 in medio piceis ; oviductus abdomine fere triplo longior ; 

 terebra rufa, vaginis nigris ; alae valde hyalinae, iridescentes, 

 stigmate et venis nigris, nubildque minutd apicali fused. 



Sp. 15. Aulacus lateritms. 



Lateritius : abdominis et alarum basi, antennarum apice nigris 

 articulisque 7 et 8 flavo-albidis, absque ad apicem macuUi 

 parva fused, tibiis tarsisque posticis extus fuscis. 



Syn. A. lateritms, Shuckard, in Entomologist, p. 125. 



Long. corp. lin. 8^, expans. alar. lin. 16. 



Habitat in Nova Hollandia. 



Sp. 16. Aulacus congener, Westw. 



Rufus, abdomine nigro, antennis, tibiis, tarsisque obscure piceo- 

 rufis ; alis pallidis, fere dimidio basali, area anali nubildque 

 apicali fuscis, costd crassd, stigmateque angustiori nigris ^ . 



Habitat ? 



Long. corp. lin. 9, expans. alar. lin. 12^. 



In Mus. Britann. 



Sp. 17. Aulacus apicalis, Westw. (PI. XIV. fig. 7.) 

 Rufus, capite abdomineque nigris, hoc lunuld versus basin fla- 



vescenti, alarum apice lato nigro j . 

 Long. corp. lin. 5, expans. alar. lin. lOi. 

 Habitat in Nova Hollandia. 

 In Mus. Dom, Hope and Shuckard. 

 Syn. Aulacus variegatus, Shuckard, in Entomologist, p. 125. 



