
WOMERSLEY—MICROTROMBIDIINAE OF AUSTRALIA AND NEW GUINEA 331 
sensillae ? Hyes 2-+-2, on well developed sessile ocular shields, anterior of sen- 
sillary area, posterior eyes the smaller. Legs shorter than body, I 2225p, IT 1450p, 
ITI 1500u, [V 2400p, tarsus I elongate, parallel sided, 525y long by 135 high — 
4-0 ratio, metatarsus 375, long, length of tarsus to metatarsus = 1-4. Palpi as 
in Fig. 22 B, stout, tibia with strong apical and accessory claws, two pectines and 
two strong spines arising near base of tarsus on external side; tarsus elongate, only 
indistinctly clavate, and reaching tip of claw. 
Clothing dorsally on hysterosoma of two kinds and sizes; the larger setae, 48— 
50. long, are globose or thistle-like, septate (Fig. 22 D), ciliated, with an oral 
whorl; the smaller setae, mainly stout, red-like, on the stem with spicules and 
apieally expanded into a more or less tri-lobed head, the lobes of which are 
tubercular, on the body margin becoming curved, with a secondary tubercular 
lobe about the middle, and reaching a length of ca. 40; on the propodosoma, the 
setae are similar to the hysterosoma except laterally, where the smaller setae 
merge into ciliated rod-like setae as in Fig. 19 G, ca. 50 long; apex of propo- 
dosoma with a fringe of long ciliated setae, ca. 70p long; legs and palp with 
leaf-like ciliated setae dorsally as in Fig. 19 H; ventrally the setae are mainly 
short to long, rod-like and ciliated, only laterally are they of the two dorsal forms. 
Loc. Wyandra, Queensland, July, 1927 (8.H.). 
Remarks. The above redescription and figures are from the unique type in 
the South Australian Museum collection. 
JAMEROTROMBIDIUM OPULENTUM Sp. nov. 
Fig. 23 A-F. 
Description. Length to 2-7 mm., width across shoulders to 1-7 mm. Colour 
uniformly red. Shape as in C. simile (Hirst), with the usual posteriorly convex 
suleus between propodosoma and hysterosoma. Crista to 630, long, linear, rather 
thick. tapering anteriorly, with subposterior sensillary area at about 24 from 
apex, sensillae bases 50” apart, sensillae ca. 150u long, apparently nude. Eyes 
2+2, on well developed sessile ocular shields, anterior of sensillary area, post- 
erior eyes the smaller. Lees all shorter than the body, I to 1650y, II to 1350p, 
III to 1350p, TV to 1800p; tarsus I to 350u long by 1380p high = ratio 2-7, meta- 
tarsus I to 290, long, giving a ratio of length of tarsus to metatarsus of 1-21. 
Palpi stout, tibia with apical stout claw and smaller accessory claw, two pectines 
and on external side arising from near base of tarsus a pair of stout spines; palpal 
tarsus elongate, scarcely clavate and only sightly over-reaching tip of claw. 
Clothing dorsally of two kinds and lengths of setae, the larger as in Fig. 23 D 
clavate, septate and strongly ciliated, to 50. long; the smaller rod-like, Fig. 23 Hi, 
to 40p long, and blunt ended; near shoulders and laterally on propodosoma the lat- 
ter type of setae are more tapering, in front of crista on apex of propodosoma with 
a fringe of long fine ciliated setae to 150p in length; ventrally entirely with long 
rod-like, to 404 (Fig. 23 F), ciliated setae; legs and palpi without any specialized 
setae. 
Tioc. Four specimens from under fallen boughs, Coorong, South Australia, 
5th May, 1943 (H.W.). 
Remarks. A very distinctive species in the nature of the dorsal setae. The size 
of the four specimens, which judging by the three pairs of genital dises are all 
fully adult, varies considerably, as also do the dimensions of the front tarsi and 
metatarsi. The measurements are as follows: 
Specimen 2-7 mm. long, 1-7 mm. wide; tarsus T 350, long by 130, high, meta- 
tarsus I 290p long. 
