12 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 124 



The two presumptive subspecies of C. rileyi are best separated by- 

 small details of the telopodite form, as seen in medial aspect (cf. 

 figs. 7 and 9) : 



Postfemur with at most a very moderate marginal flange along the inner side; 

 retrorse part of the apex relatively narrow and tapering (north-central and 

 northeastern Georgia) rileyi rileyi (Bollman) 



Postfemur with a very prominent broad flange on the inner surface (fig. 9, pff) ; 

 reflexed apical part of telopodite relatively much broader (east-central Alabama) . 



rileyi alabama, new subspecies 



Cleptoria rileyi rileyi (Bollman), new status 



Figures 2, 7, 8, 12 



F ontaria rileyi Bollman, 1889, p. 345. 



Cleptoria rileyi. — Chamberlin, 1939, p. 9. — Chamberlin and Hoffman, 1958, p. 28. 



Type-specimen. — Adult male holotype, USNM 2742, from Macon* 

 Bibb County, Ga., collected by Lucien M. Underwood, August 1887. 



Diagnosis. — Cleptoria rileyi has been distinguished from its 

 congeners under the species heading; the nominate subspecies con- 

 trasted with C. r. alabama by the characters cited in the above key 

 couplet. 



Description of holotype. — Length of body 40 mm (slightly 

 contracted); width of sixth segment 11.0 mm, of twelth segment 

 10.5 mm; of sixteenth segment 10.0 mm. W/L ratio 27 percent (prob- 

 ably closer to 25 percent); W/D ratio at segment 12 62 percent. 



Head smooth and polished, slightly convex, facial surface nearly 

 flat; genae not margined, with distinct median impressions; labral 

 setae about 18, clypeal setae about 14, series extended onto lower 

 parts of genal margins. Vertigial, interantennal, and frontal setae not 

 detected. Interantennal isthmus broad (1.5 mm) and flat, 20 percent 

 of antennal length. 



Antennae fairly long (7.5 mm) and slender, extending caudad to 

 posterior edge of third tergite. Article 1 subglobose with few setae on 

 dorsal side, articles 2-6 subequal in size and shape (1.4 mm in length), 

 article 7 very short, subconical, with 4 terminal sensory cones. 



Collum broad, extending about 0.5 mm beyond ends of following 

 tergite on each side, its surface smooth and polished, anterolateral 

 marginal ridge distinct. Anterior and posterior edges symmetrically 

 tapering laterad to ends. 



Body segments from second caudad with paranota transverse, 

 none swept forward, anterior corners broadly rounded, posterior 

 either rectangular or with peritremata slightly projecting beyond 

 caudal margin. Paranota depressed, only slightly interrupting slope 

 of middorsum, scapulorae strictly marginal, dorsal surface smooth or 

 very minutely coriaceous, each paranotum with distinct ovoid swelling 



