
WOMERSLEY—MICROTROMBIDIINAE OF AUSTRALIA AND NEW GUINEA 307 
SPATHULATHROMBIUM FULGIDUM sp. nov, 
Fig. 7 E-H. 
Description. Adult. Colour red. Shape as in other species but shoulders not. 
very pronounced. Length 1-575 mm., width 0-9 mm. Legs shorter than body, 
T 1445p, IL 1050p, IIT 975p, IV 1350p, tarsus I 3304 long by 150, high, metatar- 
sus I 230, long. Crista linear, 420» long, with subposterior sensillary area, but 
crista behind sensillary area evanescent, with paired filamentous, apparently 
nude sensillae, their bases 25 apart. Mandibular chelae with finely serrated 
inner edge. Palpi as figured, distal part of tibia slender and long, tarsus rather 
conical only reaching to base of claw. Eyes 2+-2, apparently not on ocular shields. 
Dorsal setae of two kinds and lengths; smaller to 32» long, spathulate or battle- 
dore shaped with short strong denticles; longer setae spine-like, strongly curved, 
more slender than in gueenslandiac, 70-90u long, with indistinct short serrations. 
Loc. A single specimen from Robe, South Australia, 13th Oct., 1943 (H.W.). 
Remarks. Close to gueenslandiae but differing as discussed under that species. 
SPATHULATHROMBIUM MYLORIBNSE sp. Nov. 
Fig. 8 A-D. 
Description, Adult. Colour red. Shape as in other species, shoulders not 
prominent. Length 2°55 mm., width 1-35 mm, Legs not longer than body, I 1275p, 
IT 900y, TIT 9302, TV 1200p, tarsus I 285p long by 93y high, metatarsus I 185p 
long. Crista elongate, 375, long and fairly thick, sensillary area subposterior, 
but appearing posterior, the crista behind the area being evanescent, with paired 
nude filamentous sensillae, their bases 21y apart. Byes 2-2, about on a level 
with sensillary area and apparently not on ocular shields. Chelae with finely ser- 
rated inner edge. Palpi as figured, distal portion of tibia slender, tarsus elongate, 
conical, reaching just beyond base of claw. Dorsal setae of two kinds and lengths, 
the smaller spathulate but rather elongate with almost parallel sides, 564 long by 
11p wide, and furnished with strong short denticles; longer setae spine-like (ef. 
fig. 8 D) with ribs of indistinct serrations, to 120u long by 6-5 wide. , 
Loc, Asingle specimen from Mylor, South Australia, 14 Sept., 1935 (H.W.). 
Remarks. Allied to queenslandiae and fulgidum but distinct in the form of 
the dorsal setae and in the dimensions of the front tarsi and metatarsi. 
Kry To THE SPECIES OF Spathulathrombium. 
1. Dorsal miecrosetae with long ciliations .. ra a4 Pa we 2 
Dorsal microsetae with short denticles .. ee a “s at Be 
Small species to 1-5 mm. long. Microsetae 264 by 84, macrosetae spine-like, to 75 long’ 
with indistinet serrations, almost straight. T, 210u by 105u, M; 135u. souwthcotti (Wom.). 
Larger species to 8-0 mm. long. Microsetae 364 by 144, macrosetae as above, 70-165 
long, only slightly curved. Ty 405-480u by 150-180, M, 300-360. S.B. 47-50. 
MaxciNvUNt Sp. NOV. 
3. Larger species to 2-5 mm, long, Microsetae to 564 by liz, macrosetac to 120% long by 
6:54 wide, with only indistinct serrations. Ty 2854 by 934, M, 185u, S.B. 21, 
y myloriense sp. nov. 
Smaller species to ca. 1:7 mm. long. Microsetae 324 long, with eurved sides. Macrosetae 
with distinet denticles a +s id es 4 
4. Macrosetae almost or quite straight, uniform to 70% in length. T, 162u by 95x, M, 108,. 
SB 21u us we om os ts queenslandiae sp. nov. 
Macrosetae strongly curved, not stiff, from 70-90 long. Ty 3304 by 1504, My 236u. SB 25h 
fulgidwm sp. nov. 
x) 
