ODYNERUS. 201 



37. A. fulvipes Sauss. — Niger, elongatus, cylindricus, crassissime 

 punctatus, flavo vel rufo multipictus, frequenter $> macula mesonoti 

 jlava ; abdominis segmentis valde punctatis 1°, 20, limbo flavo ; primo 

 insuper utrinque fascia flava, et sutura elevata distiucta; secundi 

 inargine paulum canaliculato, pauluui reiiexo. 



Odynerus flavipes Sauss. Vespides I, 142, 27 (Syn. excl.j ; pi. xvi, fig. 



3, 9, 1852; III, 205. 

 Odynerus fulvipes Sauss. Vespides, III,. 205 (1854). 



Total length, 12 mm. ; wing, 9 inm. 



9. Form very slender, lengthened, cylindrical. Clypeus py- 

 riforra, slightly truncate at the extremity, very coarsely cribrose, 

 especially toward the bottom. Head coarsely punctured. Thorax 

 quite cylindrical, arched, very coarsely cribrose. Prothorax 

 finely rimmed ; its angles a little dentiform, directed forward. 

 Metathorax slightly prolonged behind the post-scutel ; its hinder 

 plate strongly concave in all its width, strongly punctured ; its 

 borders a little trenchant or blunted by the very large reticulate 

 holes which, occupy the superior face of the metathorax, forming 

 sometimes at the summit two ridges separated from the post- 

 scutel by a fissure. Abdomen cylindrical, the first segment bell- 

 shaped, lengthened, as wide as the second; its suture distinct, 

 but placed upon the declivity of the anterior face, and often 

 followed by a groove; 2d segment cylindrical, not swelled, nor 

 wider than the 1st. The first two segments strongly punctured 

 throughout the length of their posterior border, the border of the 

 2d lightly reflexed. The 2d segment offers some very large 

 sparse points beneath. The 3d segment is cribrose with immense 

 depressions, especially in the middle. 



Insect black ; a spot on the mandibles, an arc on the summit 

 of the clypeus, a line on the scape of the antennae, a spot on the 

 forehead, one in the sinus of the eyes, one behind each eye, an 

 interrupted border on the prothorax, a spot under the wing, 

 another at the base of the disk of the mesothorax before the 

 scutel, post-scutel, angles of the metathorax, regular border on 

 the 1st and 2d segments of the abdomen, and two oblique lines 

 on the sides of the first, orange. Tegulae red, spotted with yel- 

 low; their appendix yellow. Legs black, knees, tibiae, and tarsi 

 orange. Wings transparent, smoky, a little violet toward the end. 



Var. a. No yellow spot before the scutel. 



b. Clypeus, metathorax, and femora black. 



