72 PROCEEDINGS OF THE NATIONAL MUSEUM vol. iis 



margins, heavily sclerotized medially to receive knob-shaped proximal 

 end of fourth segment. Fourth segment and claw-shaped terminal 

 process approximately one-seventh the appendage length, division 

 between segment and terminal process distinct. Single, setule-like 

 accessory process present on inner surface of segment, just proximal 

 to terminal process. 



Antennae of single male specimen in collection both broken when 

 specimen removed from host. Shiino's figure (lOSoc) indicates that 

 tlie major difference between the male and female antenna is in the 

 composition of the third and fourth segments and his description 

 states (ibid., p. 56): "Terminal claw of 2nd antennae with a short 

 falciform and a rounded protuberances close to the base, besides with 

 a short seta; succeeding joint with 2 similar setae on inner margin 

 in the region between apex and acuminate process against which 

 tip of claw acts." 



Mandible of female and male (fig. 5e) 3-parted, rodlike. First 

 part approximately one-third the appendage length, division between 

 first and second parts distinct, complete although second part solidly 

 attached to first and musculature associated with appendage not 

 indicative of segmentation. Second part slightly more than two- 

 fifths the appendage length, third part slightly more than one-fourth 

 the appendage length, proximal end angled, distal rounded although 

 inner lateral portion terminating in toothlike process; distal two- 

 thirds of inner lateral surface with 17 large denticulations in addition 

 to single denticulation at junction of distal and inner lateral margins. 



Scoop-shaped postantennal process (fig. 5b) with irregular distal 

 margin due to minute, rodlike structm-es not appearing to extend 

 above cuticle. Postoral process (fig. 5/) 2-parted, situated imme- 

 diately adjacent to lateral surface of mouth cone, both parts arising 

 from platelike region of heavy sclerotization extending medially and 

 continuous with articulation surface of mandible. First part of post- 

 oral process semitriangular in cross section, distal end sharply 

 rounded, bearing 2 naked, setule-like structures. Second part a small, 

 knoblike projection just anterior to first part, bearing 3 small setule- 

 like processes distally. 



Female and male maxilla (fig. 5g) 2-segmented, situated just lateral 

 and posterior to postoral process and mouth cone. First segment 

 slightly shorter than combined length of second segment and terminal 

 process, although better developed. Distal margin of first segment 

 irregular, with sinus on outer posterior surface that receives heavily 

 sclerotized outer proximal end of second segment; outer distal surface 

 with small clump of plumosities. Outer surface of second segment 

 with membrane along distal half and spike-shaped protrusion from 

 distal region in addition to denticulated expansion of distal end of 



