chambebun: mybiofoda of THE AUSTRALIAN REGION. 10") 



288. Ai STB m.iosoma kos< ii ski>\ AGUM Brolemann. 

 Records Austr. mus., 1913, 10, p. LOO, Gg. 27, pi. L5, fig. 18 20. 1 



Leu urn. New South Wales: Pretty Point, near Mt. Kosciusko. 1 



289, Australiosoma (Dicladosoma) etheredge] Brolemann. 



Recordfl Austr. mus., 1913, 10, p. 103, pi. 15, fig. 21, 22. ' 

 LOCALITY, — New South Wales: Pretty Point, near Mt. Kosciusko. 1 



290. Australiosoma (Cladethosoma, subgen. nov.) clarum, sp. nov. 



Type.— AI. C. Z. 4,887. Paratypes.— M. C. Z. 4,888. New 

 South Wales: Hornsby (W. M. W 7 heeler). 



Of the known species apparently nearest A. rainbowi Brolemann 

 but easily distinguished by the structure of the gonopods in which 

 the seminal branch is deeply subdivided, the gonopod thus presenting 

 four branches (Cladethosoma, subgen. nov.) instead of three (Australio- 

 soma sens, str.) or two (subgen. Dicladosoma). The tibial branch is 

 much broader; at the tip it is curved back uncately and on the mesal 

 edge just proximad of the curved part presents an acute tooth. The 

 seminal branch proper curves in mesad beneath and in contact with 

 the apical portion of the tibial division, and is broadly expanded near 

 the middle of its length; the branch from near its base and on the mesal 

 side is more slender and straight, but little curved at the acute tip. 

 The tarsal branch at its base is ectad of the seminiferous branch in 

 between which and the tibial plate it curves and is there partly con- 

 cealed. The coxa bears a long, cjlindrical, peg-like process on the 

 mesal edge of its distal end. 



The general color is chestnut-black with a broad longitudinal median 

 dorsal yellow band bisected by a narrow dark stripe or line and with 

 the keels also yellow, the gemination of the dorsal stripe not always 

 evident in young specimens. Legs and antennae brown to somewhat 

 chestnut. Anal valves blackish. 



Keels of second segment each with a single lateral tooth near ante- 

 rior corner. 



Anal scutum much exceeding the valves; the cauda flattened, dis- 

 tal margin incurved or notched. 



Length (male), near 35 mm.; width, 4 mm. 



