334 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 117 



Head proportionately rather small, about 3.5 mm. across genae; 

 the sm"face convex, smooth, polished; a deep rounded depression 

 between the antennae; epicranial suture distinct, with a single row 

 of small punctations, conspicuously branched between the antennae 

 (fig. 14). Genae equally divided into: (1) a broad, flat, lateral 

 margin; (2) a prominent subantennal swelling that does not extend to 

 genal apex. Facial setae: supra-antennal 2-2, frontal 1-1, sub- 

 antennal 1-1, clypeal about 13-13, labral about 14-14, genal 3-3. 

 Interantennal isthmus Avide (1.1 mm.), about 22% of antennal length. 



Antennae of moderate length (5.0 mm.) and slender, extending 

 caudad to 4th segment. 1st article globose with 5 macrosetae; 

 2nd article not distinctly geniculate basally, short, not extending 

 beyond cranial margin; articles 2-6 essentially similar in size and 

 shape, the distalmost articles densely setose; article 7 small, sub- 

 conical, with 4 small sensory cones. 



Collum small, ends broadly rounded and much shorter than ends 

 of 2nd segment. Surface smooth and polished, marginal ridge extends 

 along caudal edge nearly to mid-dorsum. Tergites of body segments 

 smooth and polished, paranota strongly depressed ventrally, con- 

 tinuing slope of dorsum. Both subsegments about equal in diameter, 

 metazonite distinctly the longer, the two separated dorsally by a 

 sharply defined stricture. Paranota of segments 17-19 less depressed, 

 nearly horizontal, their surface coriaceus. 



Paranota small (fig. 15), widely separated from each other except 

 on the anteriormost segments, anterior corners rounded back to about 

 segment 12, thence becoming distinctly angular; posterior corners 

 rounded on segments 2-4, thereafter becoming increasingly acutely 

 angular. Anterior, lateral, and posterior paranoial edges margined 

 on all segments. Scapulorae submarginal; ozopores large, opening 

 laterally about at midlength of the elongate peritremata. Paranota 

 of posterior segments join sides of the body cylinder at a re-entrant 

 angle. 



Epiproct small, triangular in outline, the lateral tubercules incon- 

 spicuous. Paraprocts prominently wrinlded, basal seta set on a 

 nearly centrally located elevation of the discal surface, dorsal seta 

 located at the broadest point of the smooth, thickened margins. 

 Hypoproct flat, smooth, broadly triangular, with a prominent median 

 projection. 



Legs of midbody segments widely separated (1.5 mm.), the anterior 

 legs of each segment slightly farther apart than the posterior. Legs 

 attached to prominent subcoxal elevations which, on the caudal half 

 of the body, become transversely connected to form moderately 



