56 PROCEEDINGS OF THE ACADEMY OF [Feb., 



Odynerus Herbertii d. sp. 



$ . — Black ; rather densely sericeous with pile ; dot at base of 

 antennae, and in eye-emargination, on mandibles at base, line on 

 scape beneath, spot at summit of cheeks, spot or short line at lateral 

 angles of pronotum, posterior margin of prouotum obscurely, line 

 on postscutellum, line bordering the concavity of middle segment, 

 extreme tips of femora, line on tibiae, and apical margin of all 

 abdominal segments including the last, lemon-yellow ; the abdomi- 

 nal fasciae broad, especially on second dorsal segment. Head with 

 deep, separated punctures, the front convex, slightly impressed 

 medially ; hind ocelli pitted ; a smooth depressed area behind them ; 

 clypeus pyriform, ferruginous at tip, with sparse shallow punctures 

 running into coarse striae apically, the apex triangularly emar- 

 ginate, or with tAvo acute teeth from each of which a short carina 

 runs toward the middle of clypeus; thoi-ax with the punctures 

 larger and more separated, especially on mesopleurae ; pronotum 

 with a slight crista toward sides, which is continued into a rather 

 acute tooth on the antero-lateral angles, the medial length of the 

 pronotum comparatively long; scutellum not impressed; middle 

 segment rugoso-punctate above, with shallow sparse punctures on 

 sides, a fairly developed medial upper surface, which however is 

 emarginate, the concave surface strongly punctured, augulate later- 

 ally, the bordering ridge not well developed ; first abdominal seg- 

 ment with the punctures strong, but much finer and closer than on 

 any part of thorax, the carina margined by foveae behind, and 

 behind these foveae is a transverse smooth area which is widest 

 laterally, and is separated medially by some coarse punctures ; the 

 medial length of that portion of this segment behind the carina 

 almost equals half its width ; second segment impunctate basally, 

 with shallow punctures, finer than on preceding segment, and which 

 become stronger until on apical margin they are quite coarse ; the 

 latter not reflexed, but medially is angularly produced ; remaining 

 segments punctured on apical portion only, except second ventral, 

 which has sei)arated shallow punctures throughout; wings yellow 

 basally and in the costal cell, the neuration brownish, more yellow 

 toward base; ai)ical jwrtion of wing subhyaline, the margin nar- 

 rowly, and a cloud in marginal cell, fuscous. Length 9 mm. 



c?. — Coloration similar to that of female, exce])t in the following 

 points : clypeus entirely pale yellow ; tegulae brown with a yellow 



