portion of the segment bears 6 or 7 longand strong bristles, 4 or 5 of which are 
placed near the edge, there being 3 to 8 additional smaller bristles proximally to 
the large ones. On the inner side there are about 8 to ro bristles. The eighth 
sternite is sharply pointed. The sensory plate is convex as in the allied species 
(not in Mesopsylla). The head of the receptaculum seminis is longer than it 
is broad, while the tail is about half as long again as the head in the view 
represented by our figure. 
Length (mounted specimen): 2.5 mm. 
One pair from Yii-lin Fu, Shensi, taken off Myospalax consus on November 
24th, 1908. 
“« Yii-lin Fu, a town situated on border of the Ordos Desert. Surrounding 
country very dry and sandy.” 
‘* Myospalax consus, a rodent with the underground habits of a mole. 
Fleas very rare on the animal.” 
3. Vermipsylla dorcadia spec. nov. (Fig. 5). 
é @. Asweare preparing a fuller account of this very interesting species, 
we confine ourselves here to pointing out some of the more striking characters 
by which both sexes of the new species are distinguished from its nearest 
known ally, V. alakurt. The tergites of the thorax and abdomen bear two 
rows of bristles, the anterior row being dorsally more or less incomplete and 
the bristles of both rows being short with the exception of the two bristles 
situated on each side below the stigma, which are fairly long. The female has 
even less bristles on the tergites than the male, the anterior row being almost 
completely absent. The sternites of the abdomen bear only one bristle on 
each side. The legs are very different from those of V. alakurt, especially the 
tibiae and tarsi, in which character the two sexes are practically identical. 
The mid tibia has four and the hind tibia only three pairs of long bristles at 
the dorsal edge, including the apical bristles, the other bristles being reduced 
to the size of the slender bristles situated on the outer surface, which are no 
longer than the lateral bristles of the femora. The thin dorsal bristles and 
those lateral ones which are placed between the dorsal edge and the centre of 
the tibia are directed backwards. The first segment of the fore tarsus as well 
as the mid tarsus is much shorter than the second. The bristles at the hinder 
edge of the first hind tarsal segment are thin and short; this segment is only 
one third the length of the hind tibia and has a pale base. The second to 
fourth hind tarsal segments have each several apical bristles which are very 
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