
WOMERSLEY—MICROTROMBIDIINAE OF AUSTRALIA AND New GUINEA 345 
FoLioTROMBIDUM KOHLSI sp, nov. 
Fig. 32 H-H. 
Degeription, Adult. Length 1°35 mm., width 0-9 mm. Shape elongate oval, 
broadest ucross the moderately prominent shoulders. Suture between propo: 
dosoma and hysterosoma distinet. Colour red. Crista linear, 182p, long with 
subposterior sensillary area at about %4 from apex, posterior arm almost obso- 
lescent, sensillae long and filamentous, apparently nude, and with their bases 25m, 
apart. Kyes large, 2-++2, on well defined ocular shields, and in line with sensillary 
area, sessile, Palpi as in fig. 32 F, tibia with strong apical claw and accessory 
claw, two pectines, but no external spine; tarsus short and stumpy, only just pass- 
ing base of large tibial claw. Legs all shorter than body, I 825p, [1 510m, LLU 570., 
IV 690»; tarsus I elongate, 170» long by 80 high, metatarsus 120, long, Dorsal 
setae uniform consisting of very thin laminae, 40u by 104 wide, with rounded apex 
and furnished with very short fine pubescence; similar setae extend on to legs as 
far as the tarsi; and ou to the femur of the palpi. 
Loc. A single specimen from soil, Goodenough Is,, New Guinea, 17th Jan, 
1944 (G, M. Kohls). A second specimen from the same locality, 31st Dee., 1943 
(D.C.8.). 
Remarks. Distinguished as in the key. 
KEY TO THE avove SPRCIBS OF Foliotrombidiwmn. 
|. Bront tarsus ea. 14 times as long as high . , 4 i% oF - 2. Bi 
Prout tarsus ea. twice as long as high .. Pr ate ye wie Ge 
%, Dorsal setao uniform, of one type (ef. fig. 31D) $5 a -» Mansi Wom, 
Dorsal setae of two types (ef. fig. 31 H) vt obs .» bisetorym 1,ap. 
5. Dorsal setae uniform, very thinly laminate with fine pubescence, 'Palpal tibia without 
external spine. Eyes large and in line with sensillary aves va 4 hohtsi nasp. 
Dorsal setae of varying size, but the one type, not thinly laminate, furnished with strong 
setules, Palpal tibia with a long slender external spine. Eyes smaller and in advanee of 
sensillary ares ols oe “~ as . Ornate Wap, 
Genus Hiorromeinium nov. 
Microtrombidiinae in which the dorsal setae are mainly or entirely bifureate 
from the base, and consist of two opposed curved ciliated lamellae, forming a 
pair of lips; the lainellae may be entire or secondarily divided, 
Genotype: Calothrombium tubbi Wom., 1937. 
Hiorrompipinm TuBst (Wom., 1937). 
Calathrumbium tubbi Womersley, 1937, Rec. S. Aust. Mus., 6 (1), 86, Fig. 1 a-d; 
ibid, 1942, Ree, 8. Aust. Mus., 7 (2), fig, 5 B-H. 
Fig. 38 A-F. 
The palpal tibia has a strong slender external spine (not shown in the original 
igure) arising from between base of claw and base of tarsus. The dorsal getac 
are iniform on the hysterosoma, 24» long, with the upper lamella strongly curved 
and broud (ef. fig. 33 D aud E) and the lower lamella straight, more or less 
tapering and not so broad, but with long spinules, Along the crista, the setae are 
of similar form, to 45 long, with the upper lamella not so curved and apparently 
not so broad (ef, fig. 33 F). Anterolaterally on the propodosoma, the setae are 
