98 
Psyche 
[June 
Remarks: The sensory setae and sensillae of this species 
are so different from those of other species that have 
been studied in this respect, that it is difficult to know 
just how T. biop s is related to other species. 
Trombicula chara n. sp. 
Figure 4 
Body: An enlongated regular oval 625 microns long by 
400 microns wide. Striae weak. Eyes distinctly sepa- 
rate ; anterior eyes 8 microns in diameter, posterior eyes 
6 microns. Anus ventral and relatively far anterior, 
170 microns from the posterior end. 
Gnathosoma: Clielicerae with rounded basal segments, 
and short strongly curved distal segments each of which 
terminates in a typical tricuspid cap. Palpal segments 
1 and 2 with feathered setae; segment 3 with a branched 
seta; the three setae on segment 4 branched, palpal claw 
with two subequal dorso-lateral tines and a longer median 
ventral prong; segment 5 with a basal spur and seven 
feathered setae, one dorsal, two apical, and four ventral. 
Galeal seta branched. No stigmata or tracheae present. 
Legs: Coxae I and II contiguous, coxa III separated by 
its own length from coxa II. All coxae with a single 
feathered seta. Leg I with three genualae, one micro - 
genuala, two tibialae, one microtibiala, one spur, one micro- 
spur at the tip of the spur, one subterminala and one 
parasubterminala arising from the same base, and one 
pretarasala. Leg II with one genuala, two tibialae, one 
spur, and a pretarsala. Leg III with one genuala, one 
tibiala, and one mastitarsala. All legs terminate in a 
pair of claws and a median claw-like empodium. 
Scutum: Irregularly shaped with a sinuous posterior 
margin. Punctae scattered over entire scutum except on 
anterior lateral angles. Pseudostigmata simple pits. 
Sensillae filiform with many branches extending almost 
to their base Scuta! setae with numerous barbs that arise 
from one face. Anterior lateral setae set back from the 
anterior lateral margins of the scutum. The Standard 
Data follow: 
