608 TAGE SKOGSBERG 



The figure 22 of C. symmetrica given by me agrees fairly well with the type described here. 

 Pilosity: This does not seem to be quite constant within the species; the second protopodite 

 joint is often furnished with exceedingly fine, short hairs distaljy medialh'. 



Maxilla: — This limb too is subject to rather slight variation in this genus. In most 

 of the species investigated by me I found almost exactly the same type. In some species, 

 however, it differed from that of the former ones in one or more respects. Just as in the case 

 of the mandible it was not always the same characters that differed in this way, but sometimes 

 one and sometimes another. For this reason it seemed to me most convenient — in order to 

 avoid too much repetition in the following descriptions of species — to give in the case of this 

 limb too a description of what I may call the ,, normal type" found by me. Consequentlv the 

 characters in this limb that are not mentioned in the following descriptions of species are to 

 be taken as agreeing with this normal tv-pe. — Protopodite: The endite on the procoxale 

 seems in the species investigated by me almost constantly to be armed with nine bristles (cf. 

 C. Valdiviae below). These bristles vary very little in size and type. In most cases the following 

 conditions are present: The antero-inner bristle is moderately long, rather powerful, of the tube- 

 bristle type and armed with two somewhat irregular wreaths of rather long and stiff 

 secondary bristles, placed obliquely. The bristle situated nearest to the former one 

 is somewhat shorter, rather powerful, well pointed and most frequently armed with one 

 or two irregular, obliquely situated wreaths of rather long, stiff secondary oristles and has 

 distally of these a somewhat varying number of more or less powerful secondary spines. The 

 wreaths of secondary bristles may be absent in this bristle. The three bristles situated just 

 outside this bristle are of the same type as the latter, but as a rule they are somewhat longer 

 and have no wreaths of secondary bristles; only in exceptional cases may the inner one of them 

 be furnished with one of these wreaths. Outside these three there is a bristle of about the same 

 type, but usually somewhat shorter and weaker. The three remaining (poster o -outer) bristles 

 are about as long as the last-mentioned one, rather weak, of the tube-bristle type and either 

 bare or furnished with some secondary bristles or more or less weak spines. My fig. 23 of G. 

 symmetrica agrees fairly well with the normal type described above. Endite on the 

 coxale: On the posterior process of this endite there are usually ten (in exceptional cases nine 

 or eleven) bristles. It is true that there is not complete constancy as to the type and size of 

 these bristles — not even within the species — but in most cases the following conditions were 

 observed by me. The two inner-posterior bristles, which are situated somewhat proximally 

 of the others, — one somewhat proximally of the other — are subequal, moderately long, 

 rather powerful, well pointed and rather weakly pectinated in the middle. Four (in exceptional 

 cases three or five), situated in the midst of the remaining ones, are of the tube-bristle type, of 

 somewhat different lengths, moderately long or rather short, rather weak and quite or almost 

 bare. The four remaining ones are comparatively powerful, of moderate and somewhat different 

 lengths, more or less well pointed and almost bare or armed with a more or less large number 

 of secondary spines. The anterior process on this endite always seems to be armed with five 

 bristles. The antero-outer one of these bristles is in most cases of about the same length and 

 strength as the two inner-posterior bristles of the posterior process, but differs sometimes by 



