
320 RECORDS OF THE S.A. MUSEUM 
setae of two kinds, the larger rather stout and rodlike with strong setules and to 
50» long, the smaller to 20 long, more slender and tapering with iong setules. 
Loc. Two co-types from an ants’ nest, Glen Osmond, S. Aust., 10th Sept., 
1933 (H.W.). Other specimens from Glen Osmond, S. Aust., 17th Sept., 1933, 
Ast Oct., 1933, 29th July, 1934, Aug., 1935; Burnside, S. Aust., 17th Oct., 1934. 
Also Julia Perey Is., New 8. Wales, Feb., 1936 (A.T.) described as M. tubbi, 
and from Gympie, Queensland, 27th May, 1940 (D.J.W.S.), recorded as Hchin.. 
hystricinum Canest. 

Fig. 15. Microtrombidium adelaidicum Wom. A, Crista and eyes (x 200); B, palp 
(X 200); C, front tarsus and metatarsus (x 200); D, dorsal setae (x 860). 
Remarks. From the clear figures of the dorsal setae of hystricinum given 
by Vitzthum (Treubia, 1928), the above species is superficially very close to the 
New Guinea form, and may be but a variation of it. The Australian specimens, 
however, differ in the very much shorter dorsal setae (see key) as well as in the 
slightly different proportions of the front tarsi and metatarsi; for the present [ 
would regard them as a different species. 
MicRoTROMBIDIUM JABANICUM Berl. 
Microtrombidium pusillum v. jabanicum Berlese, 1910, Redia, 6, 362. 
Microtrombidium jabanicum Berl., 1912. Redia, 8, 189-140; Oudemans, 1922, 
Entom. Ber., 6,108; Vitzthum, 1926, Treubia, 8 (1-2). 
Fig. 16 A-E. 
A single specimen collected from soil surface in kunai grass, Dobodura area 
of New Guinea by F1./Lt. D. C. Swan is, I believe, referable to this species. The 
description of the specimen, an adult female, is as follows: 
Leneth 1-2 mm., width 0-85 mm. Shape only slightly cordate. Colour a 
deep purplish-red or maroon. Crista linear, 324. long, and tapering towards 
