
296 RECORDS OF THE S.A. MUSEUM 
11. Dorsal setae thin, pointed, leaf-like with strong mid-rib and marginal eiliations 
Laminothrombium Wom. 1937 
Dorsal setae thin, blunt and rounded at apex, more or less seale-like Foliotrombidiwm nov. 
12. Some or all the dorsal setae bifid, either from the base or apically 2 ; ot 43, 
Dorsal setae simple, solid, blunt or pointed apically .. SS . 14, 
13. Dorsal setae thick stemmed with long ciliations and frequently bifid near apex, the branches 
appearing clavate Mls a Fa * Georgia Hull 1918, 
Dorsal setae bifid from the base, the two branches forming more or less concave opposed lips 
Hiotrombidiwm nov. 
14. Dorsal setae, sometimes only the smaller, fusiform, apically acute with short ciliations .. 15, 
Dorsal setae otherwise, blunt or only obtusely pointed at apex 
Enemothrombium Berl, 1912 s, str. 
15, Median segments of legs I and IV produced laterally at apex into strong irregularly dentate 
processes. Coxae IV set at right angles to ITI, so that legs IV are splayed outwards 
Pedotrombidium nov. 
Legs normal, dorsal setae fusiform and pointed with short ciliations 
Platytrombidium Sig Thor 1936, 
Genus DromnotHrompBium Berl. 1912. 
Redia 8, (1), 182, fig. 59. 
Berlese erected Dromeothrombium as a subgenus of Microtrombidiwn for 
his species M. macropodwm from Java, on the character of the first and fourth 
legs being very much longer than the body. 
Tn 1937 (Ree. 8. Aust. Mus., 6, (1), 86) I placed Banks’s Rhyncholophus 
attolus from New South Wales, (and earlier (Womersley, 1934) as Microtrom- 
bidium) in Dromeothrombium; in 1939 (Tr. Roy. Soe. 8. Aust., 63 (2), 150) I 
recorded D. macropodum from Queensland, and described D. dromus from South 
Australia. 
Upon re-examination of this material I now find that, while agreeing in the 
long first and fourth legs with the genotype, macropodum, the species attolus and 
dromus are generically distinct in that the crista has a small but distinct sub- 
triangular anterior area or nasus, that the accessory claw of the palpal tibia is 
wanting, but that there are instead 2—3 stout spines, and that there are no pectines 
on this segment of the palpi. 
These two species must then be withdrawn, not only from the genus but also 
from the subfamily Microtrombidiinae and will later be referred to a new genus 
and family. The Queensland specimens are now recognized as distinet from 
macropodum and renamed queenslandiae. 
The genus can be defined as follows : 
Legs much stouter than the rest, I and IV longer than the body. Shoul- 
ders very prominent. Eyes 2+2, sessile, on ocular shields. Crista linear, with 
subposterior sensillary area and paired sensillae, anterior area absent, no 
nasus. Palpi relatively stout, tibia with strong apical claw, accessory claw, 
and two pectines but in known species without external spine. 
Genotype D. macropodum Berl., 1912. Also D. queenslandiae nov. nom. for mac- 
ropodum Wom., 1939, nec Berl. 
DROMEOTHROMBIUM QUEENSLANDIAE nom. nov. 
=D. macropodwm Wom., 1939, nec. Berl. 
Fig. 1 A-D. 
Redescription. Colour in life probably white. Shape cordiform with prominent 
shoulders. Length 0-9 mm., width across shoulders 0-72 mm. Legs relatively 
thick, especially I; length of leg I 1575p, IT 1020p, ITI 1020p, [V 1875,; tarsus I 
elliptical, 375, long by 190, high, metatarsus I 225p long. Crista linear, 396y. 

