88 



RKCORDS OF THE AUSTRALIAN MUSEUM. 



C. i)e)iritlieiisis is closely- related to ( '. ^(nnni', Silv., 1S98, 

 but is to be distinguished from it on account of the ft)lh)wing 

 particuhirs : — 



First pair of copulatory organs: — Jn ('. !<l'iiiii(' the proximal 

 joint is less broad, its length stands to its breadth as 8 to 7. 

 Its inner margin is sinuate, the inner angle being bent out- 

 wards and less distinct, while in <'. jioirlflieiisis the length 

 stands to the breadth at least as 3 to 4.50 and the inner 

 margin is differently shaped. 



Second pair of copulatory organs : — The inner pioduced 

 angle of the posterior median processes, if measured at its root, 

 is as broad as half the process itself in ( '. xemin', while it is less 

 developed in C. peitrltJii-iisin. 



Female sexual oi-gans : — ]n C. xeniui' the distal plate rapidly 

 thins out into a slender, acute top, the lateral margins being 

 therefore concave and not straight as in ('. i>ciirif}iriisi>;. 



No doubt further differences would be brought to light 

 should the types be carefull}- compared." 



Fig. 23. 



Fig. 25. 



Fig. 24. 



^ Silvcstri's description of C. sciincc runs as follows : — 



V Color fiisco-oli\;iceiis. inarninc postico soniitorimi niKiL-sccnte- Caput sparse 

 ' punctatiim. circa labrum nianis piinctatiim sctincruni. Antennae bre\-cs articulis 

 '1-5 subacciLialibus, articiilo (i" coctcris fere diiplo lonKiorc. cylindrico. Somita : 

 'teruitum primum sparse setosum, ternitiim sccondiini in e.xcavationc laterum 

 'setosum. Tergita coetera laevigata. Viil\a (Hn.2;<)articiiIosuperotrianKLiliformi, 

 'apice magis attenuato interne vix reverso. c^ Foemina minor, tergito lit in 

 ■focmina. Organiim copulativum ; par anticum (H(4. 24) articiilo secundo minus 

 ' magno. forcipc elonnato, digito mobili breviorc, par posticum (tig. 251 forcipis 

 'digito mobili immobili pariini longiore, magnitudine altero subaeiiuali. Long, 

 'corp. mm. ? 24. J 22; hit. corp. mm. ? \2. <i 10. Hab. Cairns (Queensland)" 



