14 PROCEEDINGS OF THE NATIONAL MUSEUM. voi. 65. 



back of the mandible"), distally (c) rounded above, without mar- 

 gination, bearing a single weak seta on dorsal surface arising from 

 slight excavation at base of apical teeth; proximally {p. fag. 5) 

 (opposite the molar part) excavated, bearing two setae, a long thin 

 one on doi-sal surface above fossa and another short one on ventral 

 surf iice near condyle. Maxilla dorsally almost completely covei-ed by- 

 mandible, coriaceous; palpus suimounting mala [ma, fig. 7) with 

 one-Uiird of its own length; palpiger maxillae (fog) small, apically 

 on outer side with semicircular cliitinization, on inner side fused with 

 stipes; three articles, basal article clavate, about one-third ot the 

 entire length of palpus, with minute seta near base on outer side; 

 second article subequal with basal, cylindrical, bearing two thin setae 

 anteriorly; apical article, shorter than second, conical with soft tip, 

 apically covei-ed with minute tactile haii-s; mala on dorsal buccal) 

 surface (m«, fig- 6) with a median longitudinal series of well-devel- 

 oped somewhat curved setae and a corresponding series along the free 

 margin, apically with a few strong setae beneath which extends an 

 inner series of small, weak but distinct setae; mala on^ventral (ex- 

 terior) surface, (m«, fig. 7) apically bearing a few f^/f'^.f^- 

 terior malar margin truncate, median emargination divided into two 

 parts, inner part of wliich is chitinized and obtusely P<».nt«d; mala 

 sligh ly concave on the inside, slightly convex on the outside, btipes 

 isfi) fused with mala; base of stipes (ba) near c-'^o -rt'culation 

 narrowed, bearing a single, long, thin seta; proxmral half of inner 

 ma"grof stipes («.) connected with maxillary articulating area 

 iarf distal half (4) immediately behind mala, fi-ee, bearing a short, 

 ttak si near ma^in; just below palpiger, -- -'-^ ^^ 

 three long, thin setae. Cardo (ca) about as long as max Han, palpus, 

 eX, adjacent to curved hypostomal thickening (Ayp) ^tween fossa 

 for ventril mandibular condyle (fm) and fossa for tip o cardo (/> 

 nner margin of cardo near center, with an indication of fusion with 

 nallaiT articulating area. Maxillary articulating area («.)prtu- 

 herant divided into halves; exterior half connected with maxilla, suD 

 dtviM into an upper and lower portion ; interior half conriected with 

 srbm^tn etifefno setae. Submentum (s,n) distinct, trapezoidal 

 b tdesM-teriorly; side margins slightly — e jr he n^^^^^^ 

 of each, a '^^.f >--;„— ^j^^^^lt^'^^^^^^^^ 

 t:iTntra\ShUrcSzedV,^ with a pair of 'long, thin setae 

 Labia palpus atout half as long as -axillary pa pus ; two artides 

 basal article cylindrical, slightly shorter *»■> that of maxillary pal 

 pus; apical article -nicaMhc^r tban ^^^^^^^^^^^^ 



^!S"bir:ht'^nSt£'^^^^^^^^ 



several rather short, rigid setae along the front margin and on the 



