32 U. S. NATIONAL MUSEUM BXH^LETIN 216 part s 



first abdominal segment pale fulvous, its apex white and with a 

 subapical fuscous area above. 



Specimens (68 cf, 169): From Arkansas (Arkansas River in 

 Arkansas Co.); Florida (Gainesville, Highlands Hammock State 

 Park, Indian River Co., Interlachen, Jacksonville, Orlando, Ormond, 

 Paradise Key in Everglades National Park, Stock Island, Tarpon 

 Springs, and Wauchula); Georgia (Chesser's Island in Okefenokee 

 Swamp) ; Indiana (Tippecanoe Co.) ; Kentucky (Green Co.) ; Louisiana 

 (Winfield) ; Maryland (Big Island in Rhode River) ; Michigan (Alcona 

 Co., Alpena Co., Ann Arbor, and Ogemaw Co.); North Carolina 

 (Edgecombe Co., Long Beach, Raleigh, and Wallace); Ohio (Cleve- 

 land, Delaware Co., and Put-in-Bay on South Bass Island); Okla- 

 homa (Wilburton); South Carolina (McClellanville and Yemassee); 

 Tennessee; Texas (Hopkins Co.); Virginia (Dunn Loring and West- 

 moreland State Park in Westmoreland Co.); and Mexico (San Ber- 

 nardo in Sonora). 



Collection dates range from late spring to early fall. Early and 

 late dates of interest are: March 21 at Tarpon Springs, Fla.; April 

 7 at Interlachen, Fla.; May 13 at McClellanville, S.C.; June 8 on the 

 Arkansas River, Arkansas Co., Ark.; June 13 at Wilburton, Okla. 

 June 21 at Ann Arbor, Mich.; September 11 at Dunn Loring, Va. 

 September 12 in Wake Co., N.C.; October 22 in Hopkins Co., Tex. 

 and November 15 at San Bernardo, Sonora, Mexico. 



The types of the synonym Crypturus dyari were reared from 

 Alarodia slossoniae. 



This species occurs in the Carolinian and Austroriparian faunas. 

 It is adult from late spring to early fall. 



2. SUBTRIBE MeSOSTENINA 



Clypeus various, usually moderately narrow and moderately to 

 strongly convex, its apical margin usually more or less convex and 

 often with a more or less distinct median apical tooth or lobe ; mandi- 

 ble about 1.5 to 3.5 as long as it is wide at the middle, its two teeth 

 of equal length or the lower tooth shorter, rarely the mandible more 

 than 4.0 as long as its width at the middle and its lower tooth very 

 small or obsolescent (as in Compsocryptus huccatus) ; flagellum various, 

 usually slender; last flagellar segment of female usually tapered to a 

 simple rounded point but sometimes with a somewhat flattened apical 

 sensory area; thorax various, usually of moderate proportions; propo- 

 deum often with strong sublateral teeth or spines (the other subtribes 

 never have these well developed); propodeal spiracle round to elon- 

 gate; front tibia sometimes more or less inflated but usually not; 

 fourth tarsal segment of female usually more or less bilobed apically, 

 always bilobed when with a group of strong apical bristles beneath 



