244 A. C. OUDEMANS, NOTES ON ACARI. 
Legs slender (Fig. 15), shorter than the width of the body 
with short trochanter, genu and tibia, and long femur and 
tarsus. The distal end of the femora, the genu, the tibia and 
the proximal ends of the tarsi bear outward a fan- or feather- 
like hair. The ambulacra (Fig. 20) are noticeable, for the 
two claws are heterodactyl, the one being transformed in a 
saw, and the sucker or caruncle is more rod-like. 
Habitat in dust in a box made of straw-paste-board. 
Patria Netherlands. 
Found by me. 
Type in collection Oudemans. 
3. Suidasia Oudms. 
(With Plate X, fig. 21—29). 
1905 January 2. Suidasia nov. gen. Oudemans in Entomo- 
logische Berichten, n°. 21, p. 209. 
Suidasia belongs to the Zyroglypheae. lt is immediately 
recognizable from all the other genera by the possession of 
a dorsal shield, perfectly resembling the anterior dorsal shield 
of the nymphae of Pterolichus Robin. This resemblance is still 
augmented by the shield being flanked by long prosomatic 
hairs, inside of which are planted minute ones, so that in fact 
the dorsal face of the prosoma much resembles that of the 
nympha of Pterolichus, with the exception that Suidasia like 
the other Tyroglyphidae is provided with a pair of vertical 
hairs, whereas Pterolichus is deprived from it. 
Moreover the new genus has the following characteristics : 
the 9 is provided with a copulation tube, like in Ctenoglyphus 
Berl., Labidophorus Kram., Glycyphagus Hering and Dermacarus 
Haller. There is a distinct demarcation of prosoma and meta- 
soma like in Ctenoglyphus and Labidophorus. This demarcation 
is on the usual place, like in Ctenoglyphus. It differs, however, 
from Ctenoglyphus by having smooth hairs, not leaflike or 
