
222 RECORDS OF THE §.A. MUSEUM 
CosMOcHTHONINS PLUMATOS Berl. 1910. 
Acari Nuovi. Manip, VI. Redia V1. 1910, 221, pl. xx, fig. 48, 
var, AUSTRALICUS nov. 
Wig 2. A-C. ' 
Deseription, Colour light yellowish, Length 246, width 160u. Hysterosoma 
with & suture lines dividing if into 4 sections. Propodosoma with sensillae 80, 
long, ciliated and appearing spindle-like but only long eiliated on the apical half 
and only indistinetly and very shortly on basal half; with rostral, lamellar and 
interlamellar hairs, and 4 pair of hairs outside sengillae bases; all these hairs are 

Hig. 2. Cosmuchthanivs plumatus y. austraticus nay. A, dorsal view, B. psendostigmal seta, 
CO, lamellar seta. 
strongly branched and aboriform, the lamellar hairs 48, lone are also doubly 
branched as in fig. 2C, the interlamellar hairs between sensillae bases are backwardly 
and inwardly curved. The first three divisions of the hysterosoma are narrow. the 
first with 4 finely ciliated setae 32 long and a seta somewhat similar on each 
shoulder, the second division has 4 similar antero-median setae and the third and 
fourth divisions 4 long, 1264 and 110, respectively, anterior ciliated setae with 
ciliations abont 5 times as long as main stem is wide, the posterior division of the 
hysterosoma also with 10 submarginal and marginal setae as figured, 40-59» lous. 
THysterosoma with many strongly impressed pits becoming weaker anteriorly. 
