NORTH AMERICAN COLEOl'TERA. 255 



Male. — Antennal club very little longer than the funiculus. Ab- 

 domen flattened at middle, the jienultimate segment depressed along 

 its posterior border, in front of which is a transverse, obtuse ridge 

 slightly interrupted at middle. Last ventral with the anterior border 

 slightly elevated, a reniform depression containing small granular 

 rugae. Spurs of hind tibiae equal in length, very long, slender and 

 acute. 



Female. — Antennal club shorter than the funiculus. Spurs of 

 hind tibite less elongate and rather wider. Pygidium more elongate, 

 slightly gibbous near the apex. Posterior femora stouter, the tarsi 

 equal to the male. Last ventral segment (fig. 22) broadly and 

 deeply emarginate, the face of the segment w'ith a deep, irregularly 

 triangular depression. 



Variations. — The color ranges from castaneous to piceous. The 

 form varies, being somewhat more ventricose in specimens regardless 

 of sex. In the males the sides of the clypeus have the appearance 

 of being convergent to the front, while in most of the females the 

 sides are strongly arcuate, although a few have the same form as the 

 male. 



This species has a similar form to infidelk, but is more robust, and 

 while the latter has the fixed spur unusually short, this one has it 

 unusually long and slender, in fact as long as the free spur, a char- 

 acter of very unusual occurrence. 



Occurs in South Carolina, Georgia, Fla., Alabama and Louisiana. 



40. \j. eorrosa Lee. — Oblong-oval, slightly broader behind, form rather ro- 

 bust, castaneous or brown, head usually darker, moderately shining. Clypeus 

 rather liroadly emarginate, the border narrowly reflexed, very closely, rather 

 coarsely punctate, front more coarsely punctate, almost cribrate. Thorax widest 

 at middle and very obtusely angulate, sliiihtly narrowed to base, more obliquely 

 in front, margin serrate, more distinctly behind the middle, sparsely ciliate, disc 

 convex, the punctures coarse, variolate, moderately closely placed, except each 

 side of middle where they are sparser, near the sides densely punctured, median 

 line indistinctly smoother, a depression at the basal margin on each side. Elytral 

 punctures moderately coarse, but not dense, surface somewhat rugulose, sutural 

 costa distinct, first discal feeble, the others very indistinct, submargiual well 

 developed. Pygidium rather sparsely punctate. Metasternum closely punctate, 

 the hairs moderately long, not dense, shorter in 9 ■ Abdomen sparsely punctate, 

 the last two segments more coarsely. Claws curved, with a strong median tooth 

 rather longer in the female. Last joint of maxillary ))alpus fusiform and slightly 

 flattened. Length .67— .80 inch ; 17 — 20 mm. 



Malp:. — Antennal club nearly as long as the stem. Abdomen 

 flattened at middle, penultimate segment (fig. 41) with the posterior 

 border vertical at middle, slightly granulate, the horizontal portion 



