177 



Abdomen. — The abdomen is twice as long as broad with almost parallel 

 sides and consequently of a rather slender appearance; at least the fourth to the 

 tenth tergites are indistinctly longitudinally divided. The almost smooth tergal 

 sclerites bear more or less long and slender terminally toothed hairs; the first and 

 the second bear only hairs placed in a transverse row along posterior margin, 

 consisting of 12 and 14 hairs respectively; the third tergite has 12 in the row and 

 one lateral in front on each side; the following six tergites bear always 6 hairs, 

 placed in large white spots, in front of the marginal row, which consists of 10 

 hairs only in the fourth tergite, but of 12 or 14 in the others; the tenth tergite 

 bears 8 hairs in front of and 10 in the row. The two last tergites as well as the 

 corresponding sternites bear in addition to the usual hairs simple "tactile" hairs. 



Antennae (PI. IV, figs. 4 a-d). — The flagellum consists of four hairs, of 

 which the anterior is terminally bifurcate and provided with four marginal teeth 

 (fig. 4 a,/"). The lamina interior has four dentated lobes and a long, slender terminal 

 spine (fig. 4 a, a--t); the serrula exterior consists of about 25 teeth, of which the longer 

 basal is moderately widened out towards the end and provided with a triangular 

 Hap, while the terminal is pointed, partly free and longer than the preceding ones 

 (fig. 4c, t). The galea extends distinctly beyond terminal hair and has a long 

 branch near to the middle and at least four shorter ones near to the tip (fig. 4 c, (/). 



Maxillae. — The maxillae are smooth with a long manducatory part and 

 with long and narrow exteriorly dentated lamina maxillaris. 



Palps (cf. PI. IV, figs. 4 e-f). — The palps, which are much shorter than the 

 body, are granular with minute and rather low granules dorsally and laterally; the 

 fingers are smooth. They bear a number of hairs, which are rather long and 

 slender, and simple but for a few terminal teeth; the posterior side of the femur 

 is in addition to these posteriorly mounted with a single longer and more slender 

 completely simple hair near to the middle and one at the tip, the tibia with a 

 dorsal and ventral one on the posterior basal elevation, and the hand with one 

 posterior and one at least, placed basally and ventrally. The fingers bear tactile 

 hairs and sense-spots, arranged in the following manner; the immovable finger has 

 anteriorlj' two basal tactile hairs, the distal one the more dorsal, between which 

 about 7 sense-spots are situated, and two more distal ones, of which the more 

 dorsal is almost median, while the other is placed nearer to the tip; the same 

 finger bears posteriorly two tactile hairs at the base and two(?) beyond the middle 

 in addition to five proximal sense-spots. The movable finger has anteriorly four 

 proximal sense-spots in a proximal row and posteriorly two basally j)laced sense- 

 spots and four tactile hairs, arranged in a longitudinal row from base to a little 

 beyond the middle. The trochanter, which has a moderately sliort and distinct 

 stalk, is 19 longer than broad and is distinctly narrower than the femur; its 

 anterior margin is beyond the stalk gradually and moderately convex; the posterior 

 is beyond the stalk so abruptly rounded, that we can speak about a posterior, 

 ventral and proximal eminence; the upi)er surface is produced into a more distal 



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