IN THE BEITISH AND COPENHAGEN" MUSEUMS. 289 



the one female (from New Granada) was much darker and that the transverse stripes of 

 another specimen (from Bogota) were more prominent ; the accessory teeth and " spots " 

 differ only in mere trivialities. One startling variation, however, was observed, namely, 

 in the position of the tarsal " tactile " hair, for in the two specimens from New Granada 

 this was placed distinctly behind the middle, but in those from Bogota placed beyond 

 the middle. 



Material. — I have examined two females of this species from New Granada and two 

 from Bogota ( ? ]), all four belonging to the British Museum (Keyserling Coll.). 



Bemarks. — This species seems to be very similar to Ch. 23(ita(/onicus Tullgr. (cf. 13. 

 pp. 155-157), but as it has the hand 1-3 instead of as long as the fingers, and narrower 

 instead of much wider than the trochanter is long, and as also minor diflerences were 

 observed, I do not think it correct to refer it to this species. To Ch. elegans Balz. 

 (11. pp. 520-521, pi. 10. fig. 12) it bears also great similarity, but maybe distinguished 

 by the shorter hairs of the femur, which is not attenuated and less convex anteriorly, 

 as well as by the less strongly convex outlines of the tibia. 



d. Subgroup of Chelifee aegentinus Thor. 



Flagellibm consists of three hairs ; galea almost alike in <s and $ . Cephalothorax with 



or without ocular spots, and with distinct median and indistinct posterior transverse 



stripe. Tibia of palps with two posterior '' tactile " hairs in middle ; ustial hairs 



stiff, pointed, and almost simple. " Tactile " hair of tarsus IV. ^-3- removed from 



the base ; in the middle of tibia a long, slender, completely simple hair. 



Ocular spots are generally well developed, but real eyes are never found. The 



cephalothorax, which is seldom distinctly granular, but generally almost smooth, has 



the anterior transverse stripe broad and fairly distinct, while the posterior is rather 



indistinct or even wanting. The abdomen, which has all its tergites except the first 



and last one longitudinally divided, has along their hindmost margin a variable 



number of more or less long, stiff, pointed, and almost simple hairs in addition to a 



median and a single or two lateral hairs on each side in front of the row, in the median 



• segments at least. The tenth tergite as well as the sternite has a pair of " tactile " 



hairs, while the eleventh has two. As far as the more detailed arrangement of the 



hairs is concerned, I refer to the description of Ch. similis Balz. and Ch. argentinus 



Thor., as I think that it is the preservation of the specimens only which has made it 



impossible to find a similar arrangement in all the species of this group. The genital 



area of the male seems to be alike in all the examined species and to be very 



characteristic. The anterior and posterior plates are of almost equal length, the 



former having a median concavity fitting into a pronounced convexity on the posterior 



plate ; through the skin accessory glands exactly like those found in Ch. cimicoides F. 



as well as an undivided elongated testis can be seen in transparent specimens. 



The galea varies from a very simple form with few teeth to a large profusely branched 

 VOL. xviii. — PART III. No. 10. — October, 1908. 2 e 



