4 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 124 



Allolectotype: a female in the Museum of Comparative Zoology 

 with a pin bearing an orange disc and a white paper label on which 

 is written "serrulatus 2," which does not appear to have been written 

 by LeConte. 



Dineutus serrulatus analis Regimbart, new status 



Dineutes analis Regimbart, 1882, p. 416; 1884, p. 469.— Severin, 1889, p. 151. — 

 Regimbart, 1882, p. 739.— Roberts, 1895, pp. 286, 287— Regimbart, 1902, 

 p. 4; 1907, p. 146.— Ahlwarth, 1910, p. 4.— Leng and Mutchler, 1918, p. 95.— 

 Leng, 1920, p. 82. 



Dineutus (Cyclinus) analis. — Ochs, 1926, pp. 121, 137. — Hatch, 1930, pp. 18, 

 20-22.— Young, 1954, pp. 143, 145, 148-150. 



Same as the nominate subspecies except dorsal surface bronzed; 

 sutural angles of the elytra produced; undersurface shining; thoracic 

 sterna dark castaneous to piceous; abdominal venter piceous, caudal 

 three segments laterally rufotestaceous, the last almost entirely; 

 anterior leg dark castaneous; anterior male femur toothed. 



Range and Variation of the Two Subspecies 



Dineutus serrulatus is a coastal plains species and apparently 

 occupies small streams below 500 feet elevation from South Carolina 

 to Texas. It consists of two subspecies, one eastern and one western 

 (fig. 11). 



The western subspecies D. s. analis inhabits the wider of the two 

 subspecific ranges. In the west, it is found in eastern Texas from 

 Kenedy County on the Gulf Coast inland to Brazos County and 

 from there northeastward to Hempstead County, Ark. A large series 

 of specimens from Hope, Ark., in Hempstead County collected from 

 July 1 to July 19, 1925, by L. Knobel contained 16 specimens (col- 

 lected on July 3) apparently from a locale different than that of the 

 other specimens. The venter, underside of legs, and external genitalia 

 of these individuals are strikingly, uniformly black. This color com- 

 bination was not observed elsewhere. From southwestern Arkansas 

 the apparent western boundary proceeds north to Stoddard County, 

 Mo. In Missouri, specimens were collected from large drainage ditches 

 and streams that drain into the St. Francis and Mississippi Rivers. 

 From the Missouri "bootheel" area D. s. analis follows the Ohio 

 River valley to the northernmost point of the known range, Orange 

 County, Ind. Three large specimens, one male and two females, 

 collected by T. S. Acker at West Baden, Ind., Sept. 27, 1961, are 

 12 mm in length and perhaps were collected at an elevation higher 

 than 500 feet. From Orange County, Ind., the northern boundary 

 descends south and east to Bullitt County, Ky., and then westward 

 to Christian County, Ky., along the southern boundary of the valley. 



