310 BULLETIN 1.45, UNITED STATES NATIONAL MUSEUM 



parallel to behind the coxal cavities, then obliquely narrowed to the 

 apex, which is acute. Posterior coxae with the posterior margin 

 strongty, arcuately emarginate, the exterior angle acute, and some- 

 what prolonged. Tibiae slender, anterior pair slightly arcuate, and 

 the anterior and middle pairs armed with a short tooth on inner 

 margin at apex. Posterior tarsi slightly shorter than tibiae, and 

 the first joint as long as the following two joints united. Tarsal 

 claws similar on all feet, cleft near the middle, the outer tooth long 

 and acute, the inner tooth broad at apex, about one-half as long 

 as outer one, and not turned inward. 



Length, 5.25 mm. ; width, 1.5 mm. 



Female. — Differs from the male in having the front of head slightly 

 wider, more cupreous, and not so coarsely rugose; antennae slightly 

 shorter, and the outer joints wider than long; prosternum more 

 coarsely rugose and without long, erect pubescence; first two ab- 

 dominal segments convex, not very densely punctate, and without 

 long pubescence at middle, and the tibiae unarmed at apex. 



Redescribed from the male type, No. 2713, in the Philadelphia 

 Academy of Natural Sciences. 



Type locality. — Florida. 



DISTRIBUTION 



Material examined : 



Alabama: Mobile (J. D. Slierman). Spring Hill, May 6, 1911 (H. P. Loding). 

 Connecticut: Cornwall, June-July (C. A. Frost) (Chaniberlin). Westville, 



July 4, 1904 (W. E. Britton). New Haven, July 10, 1905 (B. H. Walden). 

 District of Columbia: Washington, June 2-July 8 (Hubbard and Sehwarz). 

 Florida: New Smyrna. June; Tampa, April 29; Jacksonville (Hubbard and 



Sehwarz). Duval County (Ashmead). Gainesville, May 7, 1925 (G. B. 



Merrill). Fort Myers, April 22 ; Cleveland, April 26 (J. N. Knull). Sanford, 



May 13 ( ). Cedar Keys, June 7 ( ). Crescent City, April, 1908 



(Van Duzee). 

 Georgia : No definite locality. 

 Maryland: Bladensburg, June-July (Hubbard and Sehwarz). 



Massachusetts: Nantucket Island ( ). Saugus. August 22 (C. A. Frost). 



New Jersey: Woodbury. June 17 ( ). Da Costa, July 21 ( ). West- 



ville, June 14 ( ). 



New York: Yaphank, June 19 (Davis). Queens, July 10 (Schott). 



Pennsylvania: Pittsburgh (H. G. Klages). 



Virginia: East Falls Church. July 1G. 1917 (L. N. Gabrielson). 



Chamberlin (1926) records Arizona, Texas, and Lower California, but these 



records are probably from misiclentified specimens of lacustrix. 



Variations. — The coloration of this species varies from bronzy 

 brown to cupreous broAvn. In some examples the groove on the front 

 of head is scarcely visible, the sides of the pronotum are obliquely 

 narrowed from the apical angles to base, the prehumeral carinae are 

 obsolete, and sometimes the scutellum is without a distinct transverse 

 carina. In the males the first and second abdominal segments are 



