348 
which is only half as long as the lateral pair; especially the two 
outer pairs are strongly pubescent. — The styli about as in St. 
pedunculatus. — The sternum has its posterior setæ about four 
times longer than the styli. — The segment is everywhere densely 
and conspicuously pubescent. — The anal plate is very interesting: 
the discoid part widens distally and is twice as long as broad; its 
four branches originate from places situated in a straight line; po- 
steriorly it has a deep and rounded median incision, and the angle 
between the incision and the posterior margin is produced in a 
small, conical process directed backwards and inwards (in some 
specimens of St. pedunculatus a vestige of this feature is found). 
The inner branches are straight, parallel, moderately thick and 
setiform, a little longer than the plate, adorned with long pubes- 
cence, and the distance between them is as long as the plate. The 
outer branches are about half as long as the inner, a little broader 
than these and distally rounded; they are curved, having the inner 
margin concave, and besides bent somewhat upwards, so that they 
occupy a higher plane than the plate and the inner branches. The 
plate and the outer branches are very delicately pubescent. 
Legs. As long and siender as in the preceding species. The 
last pair (fig. 2e) present some differences: the femur is about 
twice as long as the trochanter, twice as long as thick, but only a 
little skorter than the tibia, which is not quite three times longer 
than thick and not two thirds as long as the elongate and distally 
very siender tarsus. The hairs on the coxa and trochanter as in 
St. pedunculatus, but the seta on the tibia is much shorter, scarcely 
half as long as the joint. The leg is pubescent on all sides, but 
the hairs are longer on the upper side than on the lower and 
especially long on the dorsal side of the tibia and proximal part 
of the tarsus. 
Length. The largest specimen, which is less contracted than 
the otker, measures 1*1 mm. 
Locality. Botli specimens have been captured in the vicinity 
of Marburg (Hesse, Germany) by Mr. C. Bbrner. 
* 
