232 ME. C. J. WITH ON SOUTH- AMERICAN CHELIFEEIN^ 



grooves. Distinctly and coarsely granular all over ; strongly clavate hairs, somewhat 

 similar to scales of a butterfly, found in numbers. 



Abdomen (PL XXIX. fig. 3 a). — All tergites lonoitudinally divided, but the first 

 three very indistinctly so. Sclerites as well as lateral dorso-ventral margin distinctly 

 granular. About 10 strongly clavate hairs are placed along posterior margin, and 4-6 

 in front of row on the hindmost (VI.-X.) tergites ; XI. tergite bears in addition to two 

 rows of clavate hairs a pair of not very long simple " tactile " hairs (cf. EUingsen, 

 15. p. 158). About genital area, cf. p. 229. 



The IV.-VI. sternites are longitudinally divided and so are sometimes the X.-XI. ; 

 the VIII. sternite is undivided or shows a trace of longitudinal division in anterior 

 fifth only ; the VII. is either completely divided or shows only trace of division 

 anteriorly and so generally does the IX. sternite. The sternites are smooth in the 

 middle, but granular laterally. The VIII, sternite is longer than any of the others and 

 has in the middle an almost semi-ellipsoidal pale area, which has its anterior convex 

 margin fairly well marked off" from the surrounding darker skin, and its hinder margin, 

 which is a trifle convex, fairly well raised and distinctly chitinised ; this area occupies 

 -|- of breadth of the sternite and f of its length. It possesses in addition to the usual 

 hairs about 50 short spines, placed within well-marked rings, crowded in the middle 

 but standing more apart laterally. The VII. and IX. sternites show areas of similar 

 appearance, possessing about 15 or 20 spines respectively, but less distinctly limited 

 laterally; but these areas almost disappear in specimens in which the corresponding 

 sternites are completely divided, and the spines are then placed interiorly near the 

 posterior margin in each half of the sclerite (fig. 3 a). In this species it thus seems 

 evident that the spinous area forms part of the sclerite and does not stand between its 

 two halves. 



Antennae. — The terminal hair extends beyond the short acute galea without distinct 

 teeth {cf. EUingsen, 15. p. 159). 



Palps (PI. XXIX. fig. 3 b). — The maxillce are distinctly granular all over and so are 

 the palps with the exception of the fingers. Hairs strongly clavate and rather short 

 on trochanter and femur, less distinctly so on tibia and hand. The trochanter, which 

 has a short, but well-defined stalk, is 1-5 as long as wide ; the anterior outline is 

 distinctly convex, while posteriorly it is produced ventrally, and even more so dorsally, 

 so that it appears bigibbose. Femur has a short, not well-limited stalk, beyond which 

 it is distinctly widened out towards the tip. It is almost 5 as long as wide ; anteriorly 

 beyond a very short basal elevation it is very slightly concave ; posteriorly it becomes 

 gradually convex just beyond the stalk and towards the termination, but between it is 

 almost straight. The tihia, which is distinctly shorter and wider than the femur, has 

 a short, very well-defined stalk and is 3'3 as long as wide ; the anterior outline beyond 

 the stalk is slightly convex, with the greatest curvature near the base, terminally it 

 even becomes a trifle concave ; posteriorly beyond the low condylus and fairly well- 

 marked basal elevation it is slightly concave and then terminally moderately convex. 



