
WOMRERSLEY «MICROTROMBIDIINAE OF AUSTRALIA AND NEW GUINEA 349 
Fig. 65 D-G, the lower with longitudinal rows of long setae; near the suture and 
buse of crista are some long, 36p, elongate, simple, ciliated setae as in Fig. 35 H; 
the legs are thickly covered with setae as in Pig, 35 T, to 30p long, 
Loe, A single specien found under a atone on Black Mt... Canberra, AGL. 
Wth et. 1944 (H.W.). 
The above four species way be separated by the following key. 
|, Doe or both kimellac of dorsal setae secondarily branched Le 4 ~ Bi 
Both lamellae of dorgal setae not branched tat 3 
2, Large wpeeies to ca, 6+0 min. Both limeline of doysal setae atrougly branched, rot tarsus 
and metatersns equil, 6604 long; taral bighest on apieal fourth, d30p 
koordanumn. (Hirst, 1928), 
Soialer specius, under 2-0 mm, Upper lamella of dorsal setae only, subdivided. Fyont tarsus 
tistinetly longer than metatarsus, 3104 long by 1104 high oe canberracnms nap. 
3. Seay alvng, crista sunilar to on doyeum but loner; some sctuc on antero-laterul arem af 
propodosoms simple, elongate and tapering, sometimes distally forked, to 304 long 
tubbi (Wom, 1937), 
Setae alohg suture between propedosvma and hystevosoma, untero-laterally on propodosomia 
and move ov less along crista, broadly elongatu and blunt at apex, to 454 long 
Atastipi (Wom, 1942), 
-- °, 
The three previously described species were earlier placed in the genus Calo- 
thrombium, largely on the forked dorsal seta as figured by Berlese for Calothrum- 
biwm paoli Berl., the type of this geuus. Celothrombium, however, in the struc- 
ture of the crista, and the absence of a distinct sensillary areolatike area, and the 
position of the sensillae bases, is much more closely related to Timwupodus Usller 
and should be placed in the subfamily Tanaypodinae Sig Thor, 1935, The above 
species are definitely belonging to the Mierotrombidiinae. 
Genus PepoTRoMBINUM Nov. 
Worm elongate oval as in Hutrombidium but without nasus or posterior dor- 
sal plate, Crista linear with subposterior sensillary area, Legs 1 to PL) much 
shorter than body; TV about as long as body, stronger than the others, with its 
coxae very elongate and atiaehed to coxae Li] almost at right angles. 1 and TV 
with some of middle segments produced laterally at tip on each side. Eyes 2+2 
sessile, not om ocular shields. Dorsal setae wniform dorsally and venivally, fusi- 
form, on short tubules. Palpi with tibial claw and accessory claw, 
Genotype: Pedotvombidium kehlsi n.sp. 
PEPOTROMBIDIUM KOTLEI sp. nov. 
Fig, 86 A-F, 
Deseription, Shape ai elongate oval, without prominent shoulders, rather 
tapering posteriorly, hysterosoma widest medially somewhat in front of coxae LT; 
propodosoma (riangular, without nasus, warrower basally than hysterosoma. 
Length 0°91 mm., width to0°45 nam, Crista lmear, 1654 long, with subposterior 
seusillary area al about 34 from tip, sensillary bases 21y apart, sensillae filament- 
ous ca. 140, long, and apparently nude, Eyes 24-2, small and placed close bo 
lateral margin of propodosoma, fot greatly in front of sensillary area, sessile, jot 
qn petlar shields, Tegs, except IV much shorter than body, £ 600,, TT 420n, LL 
450. 1V 825p, 1V much stronger than others, its coxae longitudinally elongate aad 
attached almost al right angles to coxae LTT; tarsus 1 elongate, 170, long by T2p 
high giving a ratio of 2-36; metatarsus | 108, long giving ratio of length of tarsns 
(0 melatarsus of 1°57. Leg Ton segments 5 and 6 and IV on segments 4-6 pro- 
duced laterally on each side af tip in irregular teeth (ef, fig, 86 G, 11). Palpi not 
very stout, tibia with strong apical and accessory claw, two pectives but no exter- 
nilspines; tarsus elongate, slightly exceeding tip of eluw, 
