ODYNEUUS. 323 



Odyn. fuscipes 1 Sadss. Et. Vespid. I, 143, 28 (1852). 

 Odyn. pedeslris Sauss. Ibid. Ill, 143, 28, % (1854). 

 Odyn. projcimus Sauss. Revue de Zool., IX, 1857, 274. 



9 • Total length, 10 mm. ; wing, 8 mm. 

 % . Total length, 9 mm. ; wing, 7 mm. 



?. Form as in 0. conformis, or a little less elongate, but 

 rather more lengthened than in 0. vagus. Clypeus cribrose with 

 large punctures. Head circular, strongly punctured, as is also the 

 thorax; metathorax not so roughly punctured, velutinous; its 

 concavity superiorly margined with rugosities. First abdominal 

 segment strongly punctured, slightly elongate, becoming more 

 rugose anteriorly. Second segment not as strongly punctured, 

 elongate, constricted at base ; its margin coarsely puuctured, a 

 little canaliculate. 



Black, shining ; scape beneath, a spot on the mandibles, a 

 frontal dot, two spots or an arcuate line on the summit of the 

 clypeus, a post-ocular spot and a spot in the sinus of the eyes, an 

 interrupted band or two macula? on the prothorax, a spot under 

 the wing, another before the scutel, post-scutel, and inferior edges 

 of metathorax, yellow. Tegula? ferruginous, spotted with vellow. 

 Abdominal segments 1-4 regularly margined with yellow; the 2d 

 adorned with two separate yellow spots near the base. Knees, 

 tibiae, and tarsi, yellow. 



Var. a. No yellow spots on the disk of mesothorax. 



b. Only the segments 1-2 margined with yellow ; metathorax 

 immaculate. 



c. Segments 3-4 partly margined with yellow. 



d. Metathorax more rounded. 



e. Two very small free spots on the 1st segment. 



V Clypeus polygonal, a little bidentate, as broad as long, 

 yellow; inner orbits vellow. Hook of antenna? black. Disk of 

 mesothorax and metathorax generally quite black. Margin of 

 2d segment often more reflexed. 



Var. The tip of clypeus black ; spots of the 2d segment very 

 small. 



Bess. a. diff. — This may be a mere variety of 0. conformist. 

 The same size, same punctures, same livery, except the two 

 oblique yellow lines of the first segment, which are wanting. 



1 This name had been previously employed by Herrich-SchEeffer 



