ODYNERUS. 205 



4®. A. Bravo S&vsa.—O./ulvipedi affinissiums, punctatissimus, niger, 

 fulvo-pictus ; abdominis segmentis 1°, 2^ margine grosse punctato, 

 fulvo ; priuio frequenter fiavo-bipunctato, sutura distincta. 9* 



Odynerus Bravo Sauss. Rev. de Zool., IX, 1857, 274. 



Total length, 10 mm. ; wing, 8.5 mm. 



9. The slender and lengthened form of 0. fulvipes ; size and 

 puncturing the same. Clypeus pyriforra, rugose, joined to the fore- 

 head by a vertical carina ; its inferior extremity subemarginate. 

 Angles of the prothorax acute. Concavity of the metathorax 

 rugose, coarsely punctured ; its border quite trenchant. Abdo- 

 men quite cylindrical; its first segment very great, as wide as the 

 second; its suture distinct, at times elevated and followed by a 

 groove. Ail the body cribrose with deep punctures forming 

 regular pits; abdomen almost as strongly punctured as the 

 thorax; the border of the first two segments insensibly depressed 

 and more strongly punctured, but neither channelled nor reflexed. 

 The following segments finely punctured. 



The insect black. Mandibles brown ; antennae ferruginous 

 beneath with scape below yellowish. A dot on the forehead, 

 one in the sinus of each eye, and another behind each eye, often 

 a spot or an arc at the top of clypeus, the anterior border of the 

 prothorax, a spot under the wing, the post-scutel, and the lateral 

 edges of the metathorax, whitish (or changing into tawny). 

 Segments 1, 2 of the abdomen adorned with a regular whitish 

 border; first segment in addition on each side with a little oblique 

 line, or a spot, of the same color ; one sees also a spot on the 

 mesothorax, before the scutellum Legs black; tibiae and tarsi 

 ferruginous. Wings transparent, washed with brown, above all 

 in the radial and along the side. Tegulae large, ferruginous or 

 pale, as well as the apophyses placed behind them. 



Var. Mesothorax, metathorax, and first segment without spots. 



Bess, a. diff. — This species is very near to the 0. fulvipes. 

 But this is a little smaller in size; and the thorax appears to me 

 a little more densely punctured. The markings are also less 

 abundant. However, one might consider it as a Mexican variety 

 of the same species, a little smaller, as in general the Odynerus 

 are smaller within the tropics, than in the north. 



Hab. The coast of Mexico. I took 2 9 at Pueblo-Yiejo near 

 Tampico; 2 9 taken near Cordova (Sumichrast). 



