316 Capt. P. P. King's South American Hymenoptera. 



Descriptions, 8^c. of the 



HYMENOPl^ERA. 

 fit/ A. H. Hauday, Esq. 



*1. Ichneumon xanthorrhjeus, n. s. 

 Abdominis cingulo pedibusque rufis, segmento septimoet ventre totofulvis. Mas. 

 Long. Corp. A\ lin. Alar. 7i lin. 



Mas. Niger. Clypeus et mandihulce rufse, hse apice fuscee. Palpi fulvi. An- 

 tennce filiformes, graciles, longitudine corporis, articulis .34 oblongis. Tho- 

 rasc immaculatus. Metathorax areolatus, denticulo minutissimo utrinque 

 instructus. Pedes rufi, posticorum tibiae apice tarsique fusel ; eorundem 

 trochanteres, omnium ver6 coxse nigri. Alw hyalinse, nervis et stigmate 

 ferrugineo-fuscis. Abdomen lineare, planum ; ventre anoque fulvis, puncto 

 apicali segmenti primi et fascia, secundi apicem et tertii basin occupante, 

 rufis. 

 In exemplari altero color rufus fusior per medium segmenti secundi ascen- 

 dens cum puncto apicali primi conjungitur ; huic etiam adest punctum 

 rufum supra clypeum in medio faciei. 

 The depressed and oblong abdomen gives a peculiar character to this spe- 

 cies, and may indicate a type of form different from any European groups : 

 but until the female is known, it will be difficult to say anything certain on 



this head. 



2. Ichneumon plebeius, n.s. 



Ahdomine rufo, segmento primo nigro ; femoribus, tibiis et tarsis fulvis ; alis 



flavescentibus. Mas. 

 Long. corp. 6^ lin. Alar. 12 lin. 



Mas. Niger, pubescens, punctulatissimus. 3Iandibulce apice rufescentes. An- 

 tennce corpore breviores, crassiusculse, setacese. Thorax immaculatus. 

 Pedes fulvi seu crocei, coxis et trochanteribus nigris. Alee flavescenti- 

 hyalinae, stigmate nervisque nigris. Abdomen rufum, segmento primo 

 nigro, ultimis dorsi subfuscis. 

 Port Famine, Straits of Magellan. 



* Those species with the asterisk attached are in the cabinet of Mr. Curtis. 



