2^32 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 106 



Legs: Genu I with three genualae on its dorsal surface, two 

 in tandem near the anterior margin and one near the posterior 

 margin, and a microgenuala about midway on a line between the 

 posterior genuala and the more distal of the two in tandem. 

 Tibia with two typical tibiala and a microtibiala. Tarsus with 

 typically arranged spur, subterminala, parasubterminala, and 

 pretarsala, but with the microspur proximal and slightly posterior 

 to spur. Leg II with one genuala, two tibialae, the microspur 

 slightly proximal and posterior to the spur, and a pretarsala. 

 Seta on coxa III set back from margin; no genuala III; tibiala 

 III present. Nonspecialized setae with straight, rather fine set- 

 ules. Punctae on all segments of all legs. Empodium on all legs 

 more slender than claws but about same length. 



Anomalies: Parasubterminalae lacking and the base of one 

 subterminala enlarged on one specimen. Subterminala sinuate 

 on one specimen. 



Scutum: Anterior margin slightly convex. Anterolateral corn- 

 ers extended in round lobes on which the short anterolateral 

 setae are attached. Lateral margins diverge posteriorly, round- 

 ing abruptly just posterior to posterolaterals. Posterior margin 

 shallowly convex posterolateral to each pseudostigma and shal- 

 lowly concave between the two. Anteromedian seta set back 

 slightly from anterior margin. All setae with short setules. 

 Pseudostigmata deep, anterior to a line drawn between poster- 

 olaterals. Sensillae long clavate, enlarging evenly from the 

 slender pedicel; widest in the distal quarter; rounded distally; 

 clothed with few widely and irregularly spaced, heavy setules; 

 one or two setules terminal. A broad inverted U-shaped ridge 

 anterior to each pseudostigma. Spots or mottling present but 

 punctae not evident. One or two small pits or pores usually just 

 medial to the posterolateral setae. 



Standard data for five specimens from University of Oklahoma : 



AW PW AP SB ASB PSB AL AM PL S 



Eyes: Usually not distinguished. One pair on one specimen 

 slightly anterior to posterolateral setae. Diameter, 12. Pigment 

 granules usually present. 



Dorsal setae : Anterior setae rather slender with numerous fine 

 setules, similar to scutal setae; nude on side adjacent to body; 

 setules of posterior group somewhat heavier. Length of humerals 



