214 HYMENOPTEKA. 



6. Phygadeuon melanopoda. (Tab. x. fig. 22, $ .) 



Niger ; abdomine (petiolo excepto) rnfo ; alis hyalinis, stigmate nigro. $ . 

 Long, fere 7 millim. 



Eab. Mexico, Northern Sonora (Morrison). 



Head and thorax opaque, covered with pale pubescence, closely punctured, the thorax 

 more strongly punctured than the head. Antennae thick, involute ; third joint about 

 one fourth longer than the preceding, the others becoming gradually shorter, the apical 

 joint being much broader than long. The mesonotum is more shining than the head 

 or pleurae; the punctures are not so closely pressed together; the sutures obsolete, 

 except very slightly in front. Scutellum indistinctly keeled at the sides towards the base. 

 Arese on the metanotum distinct, the upper median area longer than broad, and rounded 

 at the sides ; tubercles large, broad. Petiole black, shining, indistinctly punctured ; 

 the base of the postpetiole black, the centre raised, a furrow on either side of the raised 

 part ; the rest of the abdomen shining, impunctate, broad, the apex obtuse ; ovipositor 

 about one half of the length of the abdomen. Areolet 5-angled, the lower side sharply 

 angled ; the lateral nervures converging at the top, the outer nervure faint. 



MESOSTENUS. 

 Mesostenus, Gravenhorst, Ichneumon. Eur. ii. p. 750. 



A genus of world-wide distribution, and of great extent. 



A. Body mid legs black. (Species 1 to 3.) 



l. Mesostenus pompiliformis. 



Niger ; anmilo antennarum albo ; alis hyalinis, medio et apice fusco-fasciatis. 5 . 

 Long. 13 millim. ; terebra 3 millim. 



Hab. Guatemala, Sabo in Vera Paz (Champion). 



Head and mesonotum opaque, very finely and closely punctured ; sparsely covered 

 with white pubescence ; mesopleura shining and impunctate in the centre, the rest 

 longitudinally striated ; metapleurse very coarsely longitudinally striated ; mesonotum 

 before the scutellum longitudinally striated. Scutellum smooth, shining, impunctate ; 

 the sides carinated along their entire extent ; strongly gibbous, longer than broad. 

 Metanotum coarsely rugose ; there is a transverse carina which curves up into a half- 

 circle in the middle ; above it the punctuation is much weaker ; spiracles large, 

 oval ; below them the notum is transversely striated ; tubercles thick, somewhat 

 oblique at the apex, and not much longer than broad. Petiole long, and, as well 

 as the postpetiole, smooth, shining, impunctate; the second segment is semiopaque, 

 the others opaque, covered with microscopic down, which is longer at the sides ; the 

 apical segment brownish ; cerci short, blunt. Legs stout, longish, the hind femora 



