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fore coxae, 4-jointed. Anterior edge of antennal groove overlapped 

 by chitinous flap.. On posterior edge of antennal groove are a 

 number of small bristles, these being most distinct in the male. The 

 first antennal joint in the male contains 4 or 5 hairs at its outer edge, 

 while transversely there is a row of several fine hairs. The second 

 joint has a row of fine hairs not as long as the third joint. Divisions 

 marking separations of third joint most pronounced on dorsal edge. 

 Two bristles on gena. The oral bristle placed low down just above 

 the base of the maxilla; the ocular bristle in front and just above 

 the middle of the eye. Six bristles on the posterior margin of the 

 occiput on each side with 2 back of the antennal groove. 



Thorax. — The pronotum is without a ctenidial comb, and has one 

 row of about 14 bristles. The mesonotum, the broadest of the three 

 thoracic nota, also has a single row of about 12 bristles. The metano- 

 tum has a single row of about the same number. The mesosternite 

 contains about 5 bristles. The pleura of the metathorax is nor- 

 mally divided. The sternum contains 2 bristles, 1 anterior and. 1 

 posterior. The episternum contains 1 bristle, and the epimerum 

 contains 2 rows of bristles, an anterior row of 7 and an apical row of 

 the same number. 



Abdomen. — The first abdominal tergite contains 2 rows of bristles, 

 an anterior and a posterior of about 6 bristles each, while the next 6 

 contains but a single row of about 14 bristles each, the lowest placed 

 just below the stigma. From the seventh tergite springs a single 

 antipygidial bristle. The sternites contain a single row of 8 or 10 

 bristles. 



Legs. — The fore coxa is normally clothed. The fore femur has on 

 its outer surface about 8 fine bristles. The mid femur has a single 

 row of about 6 bristles, while the hind femur has a row of the same 

 number. The hind coxa has on its inner surface a regular row of 

 about 6 teeth. The hind tibia has on its posterior border 5 groups 

 of spines in pairs, while on its outer surface there are about 8 small 

 bristles in a row. The apical bristle on the second tarsal joint of 

 the hind leg reaches to about the middle of the fifth tarsal article. 

 The fifth tarsal article on all of the legs has 4 laterrJ spines and a 

 subapical pair of hairs. 



Modified segments. — ( 3 ) The manubrium of the claspers is short 

 and narrow. There are two free processes, the upper one, the finger, 

 being broadest and wider at the tip than at the base, its upper 

 border being more convex than the lower border and containing a 

 number of bristles. The ninth sternite is club-shaped, is nearly 

 straight on its dorsal margin, and the ventral margin contains a row 

 of fine bristles from base to apex. 



( 9 ) No bristles in front of the sensory plate. Along its apical 

 margin externally there is a row of about 12 long bristles, and inter- 

 13429—10 10 



