74 Bulletin Wisconsin Natural History Society. [Vol. 8, No. 2. 



third to penultimate growing- gradually shorter, the joints at the apical 

 third of the antennae twice as long as thick. Thorax three times as 

 long as wide shagreened, but more nearly smooth and shining- on the 

 metathorax. Mesonotum one-half longer than wide, its lateral margins 

 from the sides of the scutellum to before the teguke narrowly, but 

 Aery distinctly reflexed ; mesonotum laterally opposite the tegula? with 

 a small elongate foveate depression. Scutellum small, with a broad 

 depressed line across its base. Wing vestiges pale, twice as large as 

 the teg-ula?. Metanotum evenly convex, with a very strongly sinuous, 

 well mai-ked transverse carina which connects with a complete, but 

 nearly obsolete lateral carina. Petiole of abdomen with no distinctly 

 projecting- spiracular tubercles, gradually narrowed toward its base, 

 one-half wider at the tip than at the base, along the sides with a 

 distinct and complete longitudinal carina which includes the spiracles; 

 also with a similar carina along the lower marg-in of its sides. Abdomen 

 quite shining- be3 r ond the petiole ; its hairs very sparsely placed ; peti- 

 ole and second segment with a pale brown band at the apex. Abdomen 

 widest on the third segment. Legs rather stout; longer spur of hind 

 tibia nearly half as long as the metatarsus which is twice as long as 

 the second tarsal joint. 



Three specimens, all males, collected by Mr. C. A. Frost at 

 Framingham, Mass. 



Pezomachus insolens sp. nov. 



Female. Length 4 mm. Entirely ferruginous, very slightly infus- 

 cated on the posterior half of the dorsum of the abdomen and on the 

 tips of the antemne. Sheaths of the ovipositor piceous. Head above 

 subshining, shagreened. Occiput strong'ly excavated medially, mar- 

 gined. Ocelli in a nearly equilateral triangle, the lateral ones closer 

 to the median one than to the eye margin. Front at its narrowest part 

 one-half wider than the eye. Malar space as long as half the width 

 of the face below the antenna?, w T ith a distinct but scarcely impressed 

 furrow from the corner of the eye to the base of the mandible. Cly- 

 peus convex, with sparse punctures, its upper margin far below the 

 lower corners of the eye and its sides each with a deep circular fovea. 

 Cheeks only slightly shagreened and quite shining. Antennas stout 

 19-20 jointed; first and second flagellar joints of equal length: third 

 and following decreasing in length; at the apical third of the antenna 

 slightly longer than wide: last joint half longer than the penultimate. 



