NO. 2284. XEW NORTH AMERICAN ICHNE UMON-FLIES—C U SUM AN. 523 



larly rugose below; propodeum with carinae strong, subpolished, 

 lightly coriaceous; apical abscissa of radius sinuate, nervuhis slightly 

 postf ureal, nervellus straight, unbroken; first tergite longitudinally 

 striate, polished at apex, the dorsal carinae fading out beyond the 

 spiracles; rest of abdomen highly polished; exserted portion of ovi- 

 positor about three-fifths as long as first tergite. 



Pale ferruginous, with abdomen gradually darkening to fuscous 

 toward apex, postpetiole narrowly outlined with brown; legs nearly 

 uniform flavous, antennae flavcus at base gradually darkening to 

 pale brownish toward apex, wings hyaline with veins and stigma 

 pale brownish. 



Type-locality. — Fort George, Florida. 



Type.— C^t. No. 21633, U.S.N.M. 



Described from one female. 



Genus THAUMATOTYPIDEA Viereck. 



In spite of its strong superficial resemblance to Pezomachus this 

 genus is, in head, abdominal, and antennal characters, closely allied 

 to Myersia Viereck, and should be referred to the Stilpnini, from all 

 the other genera of which it is, of course, at once distinguished by its 

 entire lack of wings in the female and the much modified thorax. 

 The male is not known. The head is longer both antero-posteriorly 

 and dorso-ventrally than that of Myersia^ the clypeus is more dis- 

 tinctly separated with larger lateral fossae, the malar space longer, 

 the first flagellar joint less distinctly longer than the second, the legs 

 more slender with the hind tibial spurs veiy short, the first tergite 

 more slender with the spiracles nearer the middle and the postpetiole 

 not much wider than the petiole. The thorax is strongly constricted 

 in the middle without a scutellum, the pronotum relatively large and 

 mesoscutum much reduced, without notauli, the wings represented 

 by tubercles, the propodeum separated from the metapleura by strong 

 carinae and with a complete apical carina elevated laterally into 

 strong spine-like projections. The abdomen is otherwise very like 

 that of Myesria even to the short lateral traces of the suture between 

 the second and third tergites and the briefly exserted ovipositor. 

 The prepectal carina is like that of Myersia. 



Genus THAUMATOTYPUS (Foerster) Brischke. 



Judging from descriptions of this genus and its included species 

 it should also be referred to the Stilpnini, the only marked dilfer- 

 ence between it and Thautnatotypidea Viereck being apparently in 

 its possession of a scutellum. 



