lillj TAOK SKOUSmCHO 



uo latvral lonu'r jilands, not only in tlic species of this gniu|i. luit in no Ifss tlian 23 species 

 belonging to several different <j;roiips. 



First antenna: — It is ospeciallv on this antenna that (J. \V. M(1i,li;k bases liis 

 grouping together oi the species mentioned above. ..('haraeteristisch liir die Gruppe ist die 

 Bewaffnimg der Hauptborste in beiden Gesehlechtern" (191)6 a, |). 5(5). In the females of these 

 species the e-bristle on this antenna is furnished with .danger, (limner, starlc abstehender Bc- 

 haarung am Winlenand". 'riiere arc nu such hairs in ('. ihisi/ophtlialinit; tliis species is con- 

 sequently ineUuled here only with hesitation. 



It is prt)bablv best, however, not to attach too much importance to this character, as 

 1 have observed that similar hairs are characteristic oi I lie i'emale of C. spinirustris as well, 

 i. e. a species that G. W. MCller referred, though with hesitation, to quite another group of 

 this genus, namely the Magna group, and they are also found in C. obtusata*. Does C. spini- 

 rostris belong to the Magna group or is this doubt of G. W. MUi.IjEk's justified? It seems to me, 

 unfortunately, impossible to answer this question on account of the comparatively slight know- 

 ledge I possess of the majority of the species belonging to the Magna group. On the other hand 

 it seems to me beyond all doubt that C. spinirostris is not more closely related to C. oblonga 

 than many other species belonging to other groups of this genus. Anyone who knows C. obtusata 

 and C. oblonga will understand that there is no specially close relation between these two species. 



In the males of the Spinijera group the e-bristle is furnished with ,,langen, borstenartigen 

 Spitzen; dieselben stehen meist sehr dicht, riicken nur ausnahmsweise (echinata) etwas weiter 

 auseinander; distal von den basalwarts gerichteten Borsten findet sich meisi (Ausnahme dorso- 

 tuberculata, allotherium, mamillata) eine kleine Gruppe distalwarts gerichteter Borstchen" 

 (G. W. MtJLLER, 1906 a, p. 56). 



With regard to these characters it may be pointed out, first, that long, bristle-like, close 

 spines are not characteristic only of species of this group, but of a very large number of species 

 belonging to several other groups of this genus; we are presumably concerned here, too, with 

 a comparatively primitive character; cf. also this character in C. dasyophtlmlma, pi. XI, fig. 30. 

 Nor is the character of a small group of distally pointing spines situated distally of the rows 

 of spines confined to this group; similar spines are found in several other species of this genus 

 belonging to different groups; the exceptions within the groups are also, of course, considerably 

 numerous. Nor can the armature of the b- and d-bristles as put forward by G. W. MULlek 

 be conveniently used; there are exceptions within the group and we find a similar character 

 in a very large number of species in many other groups of this genus. 



Mandible: — • ,,Kauwulst der Mandibellade in Form einer quergestellten dreiseitigen 

 Zahnplatte liber die ganze Breite der Kaufiache ausgezogen, die vier Hakenzahne zur Seite 

 gedrangt, in dem dichten Borstensaum mehr oder minder versteckt." (C. Glaus, 1891 a.) 

 This character is not included at all by G. W. MUller. With regard to the value of this character, 

 which applies, of course, only to the three first-mentioned species, it is difficult to make any 

 definite statement, but it is presumably rather slight, as the differences we are concerned with 



* In a large number of species there are exceedingly short, distally pointing hairs at this place. Siiih species are 

 C. elegans, C. rolundaXa, C. Haddoni, C. bispinosa, C. Gaussi, C. serrulata and C. Chuni. 



