June. 1920.] XlCOLAY AND W'eISS : ThE GrOUP TraCIIES. 141 



taceous, obsoktcly punctulate. Thorax without lateral depression and with 

 sparse, shallow punctures almost obliterated on the disc, more obvious at the 

 sides, finely alutaceous at the sides. Elytra with a deep impression on the 

 sides before the middle and with another obsolete one near the suture behind 

 tfie middle, plainly punctured with traces of regular rows on the disc. Length 

 2-3 mm. ,o8-.i2 inch. Male, last ventral segment with an oblong impression 

 at apex, apical margins produced in the middle into two prominent processes 

 each of which terminates in four small teeth. Female, last ventral segment 

 not impressed, apical margin produced in the middle in an acute point. 



" Very al)uiidant everywhere in Florida. In form and size this 

 species resembles P. Iccvigatiis, the elytra however are less triangular 

 and more rounded at the sides : it differs also by its color and by the 

 thorax not being impressed at the sides. Very probably there will 

 also l)e a difference in the sexual characters of the males but we 

 have not seen the male of P. Iccvigatiis. In P. purpnrciis the last ven- 

 tral segment of the male has a similar impression but the two processes 

 are more separated from each other and each terminates in three 

 teeth." 



In this species the ventral pubescence is almost obsolete except on 

 last abdominal segment. Easily separated from preceding species by 

 bluish color of entire dorsal surface. Length, 2-3 mm. 



Localities. — Arkansas (Nicolay collection). Enterprise, April 18; 

 Tampa; Key West (Nicolay collection); Sanford, April 24 to May 

 9, Crescent City (Van Duzee) ; Dunedin, March 16 (Blatchley) ; 

 Florida. Billy's Island, Okefenokee Swamp, June (Leng) ; Georgia. 

 Harrisburg, July 31 (Wenzel) ; Texas. 



This is a strictly southern form and evidently not rare where it 

 occurs. The name cccnilcits was given to a species from Guiana by 

 Gory in 1841. The spelling of this name with an " o " instead of an 

 '■ a " by Kerremans is incorrect. 



Pachyschelus schwarzi var. oculatus Schaeffer, 09-377. 

 (Original description.) 

 " Black, head and thorax ^eneous, elytra blue. Head distinctly longitu- 

 dinally impressed along the median line ; finely and densely punctate with some 

 coarser punctures intermixed ; eyes rather convex. Thorax at apex feebly 

 emarginate ; sides obliquely narrowing to apex, almost straight to about apical 

 fourth, then slightly arcuate; base bisinuate, median lobe almost truncate; 

 surface finely and very densely punctate especially at sides, intermixed with 



