424 Br. A. S. Packard, Jr's Revision of the 



Body brown, polished, with narrow yellow rings ; pro- 

 podeum smooth and polished; basal abdominal 

 ring black; antennse yellow, red beneath G. flavicornis, (Harr.) 



Black, antennse fuscous blackish, enclosure of propo- 



deum 1-t-striated, with no yellow spots G. atricornis, (Harr.) 



C. % . Body very short, wings clouded anteriorly, antennae denticu- 



lated. 



Propodeum and whole body coarsely punctured, en- 

 closure with four short very regular straight ridges 

 on each side of the mesial furrow G. denticulatus, Pack. 



D. Monedula-like, front much narrower than usual. 



"Wings not clouded; propodeum punctured, not striated.G. moneduloides, Pack. 



Gorytes mystacea of Europe, falls into another group, which we 

 would locate between groups B. and (J. It is characterized by its 

 broad front, its unusually small, narrow head, clear wings, very nar- 

 row 3d sub-costal cell, and short body. 



Section A. 



In the first group of the genus, the females have the head unusually 

 short and the vertex flat, Mellinus-like ; antennae small and filiform 

 throughout ; clypeus very broad and short, edge revolute, much thick- 

 ened ; body very short ; thorax stout ; propodeum unusually short, legs 

 short ; 3d sub-costal cell very short, nearly square ; abdomen very 

 short, especially the basal ring. 



Gorytes nebulosus, Pack. 



9 . Head very broad, oblong when seen from above, vertex raised, 

 coarsely punctured, front nearly twice as broad as in the succeeding 

 species, sides parallel, straight, orbits yellow; clypeus black, smooth, 

 like the lower (or anterior) part of the front ; edge greatly thickened, 

 overhung by hairs; labrmn distinct, broad and short; palpi black; 

 mandibles black ; antennai very slender filiform and short, shape very 

 slender, yellow beneath, prothorax broad, yellow above. Body through- 

 out coarsely punctured, a yellow spot behind the black tubercle ; a 

 yellow line- on the scutellum ; propodeum with a small triangular 

 enclosure, with very regular large striae, 7 on each side of the two 

 mesial ones, the mesial furrow scarcely differing from the other inter- 

 spaces; posteriorly is a coarse net-work of large punctures, which are 

 scarcely striated. Teguloe dark testaceous ; wings with the outer edge 

 very short, 3d sub-costal cell short, as broad as long, nebulose, the 3d 

 costal, 2d sub-costal and 2d sub-median clouded; nervules black 

 throughout. Legs dark, femora black, tipped with reddish yellow; 

 tibiae fuscous yellow, darker externally near the tip, tarsi fuscous, hind 



