
WOMERSLEY—MICROTROMBIDIINAE OF AUSTRALIA AND NEW GUINEA 351 
Genus Puaryrromeinrum Sig Thor, 1936, 
Zoal, Anz, 1936, 114, 31, 
This genus was erected by Sig Thor tor those species, placed by Berlese in 
ihe genus Bnemathrombium, in which the Gorsal setae were fusiform with fine 
viliations, He cited Trambidium vagabwndum Berl., 1908 as the genotype, and 
ineluded the following additional species: fusicomun (Berl, 1910); sylwatiowm 
(C. 1, Roch, 1885) (= simulans (Berl, 1910))s trispinawm (Berl, 1910) ; quad- 
risponwm (Berl, 1910) ; and platyehirwm (Berl. 1910), In 1937 L added Tirst’s 
Sonth Australian species paranwn. 
PuatytromeiprumM PARANUM (Hirst, 1928). 
Minrotvombidium parinum Uirst, 1928, P.Z.8. 1026, fig. 8 By Womersley, 1934, 
Ree, 8, Aust, Mus., 5 (2), 191, 
Platylrombidnun paranum Womersley, 1937. Ree, 8, Aust. Mus, 6 (1), 90. 
Rig, 87 A-D, 
Redeseription. Colour bright red. Shape as in the species of Camerotrom- 
hidiwm, with the usual sulcus between propoclosoma and hysterosoma. Length to 
1-5 mm. approx., width to 1:0 mm, approx. across shoulders (in type ea. 1°25 
mm.and ?), Orista to 842, long (missing in type), linear, with subposterior sen- 
sillary avea at about 34 from anterior end, sensillae bases 32 apart, sensillae ea. 
150, long, with short sparse eiliations distally. Byes 2-2, on well defined oenlar 
shields. Legs shorter than body, I 1125, (975u), TL 900 (8754), 111 900. (840,.), 
TV 1290” (1050u) ; tarsus 1 short and broad, 225 long by 135, high — ratio of 
1°7, metatarsus I 165p long, ratio of length of tarsus 1 to metatarsns T = 1°36, 
Palpi stout, tibia with stout apical claw and smaller accessory elaw, two pectines 
and on external side with a stout strong spine arising near base of tarsus (Hirst does 
not show this in his figure, but if is present in the type, as well as in the second 
specimen) ; palpal tarsus elongate, about reaching tip of claw, 
Olothing of mnitorm, small, 16-25, fusiform, oval, pointed, finely ciliated 
setae; these setae gradually lengthen posteriorly and also anteriorly and laterally 
on the propodosoma; at the apex of propodosoma in front of tip of crista is a 
fringe of long slender ciliated setae; ventrally the setae are to 30 in length, slender 
und tapering with ciliations, legs and palpi without any specialized setae, 
Loc. The type material (damaged) was from Gawler, 8. Aust., March, 1927 
(S.H.), (in the 8, Aust. Mns. collection): a second specimen from Bordertown, 
Sonth Australia, Dec., 1934 (R.V.8,) 
Remarks, The ubove description is drawn up from both specimens. The 
measurements given in parentheses refer to the type, and are only shown when 
(he specimens differ. 
PLATYTROMBIDIUM PRITCTIARDI (Wom,, 1936). 
Microtrombidaun. priichaydd Womersley, 1936. J. Linn. Soe., London, Zool., 40, 
109, fla, 3 a-e, 
Fig, 38 A-D. 
There is little to add to my original description of this species, A pavatype 
specimen from the same locality and cate is somewhat smaller than the type. Its 
dimensions are: length 1:35 mm., width 0-9 mm. Leg I 945p, IL 680u, TTL 650p, 
IV 900,; tarsus 1195p long by 90. high, metatarsus 135u long. 
