1908.] NEW SPECIES OF FLEAS, 625 



clasper (PL XXYIII. fig. 3, 01.) is produced into a short square 

 process (P), of which the apical margin is feebly incurved. At the 

 upper corner of this process there are about half-a-dozen slender 

 bristles and one which is very stout and long, whei-eas at the 

 oblique ventral margin of the process there are two such long 

 bristles. The manubrium (M) gradually tapers to a point, being- 

 somewhat curved upwards. The movable process (F) is widest 

 near the base. It is irregularly conical, the ventral margin being- 

 somewhat incurved and proximally strongly rounded. There are 

 four short broad bristles near its apex at the dorsal edge and 

 three thin ones near the apex at the ventral margin, there being, 

 moreover, four thin bristles at this margin on the widest part 

 towards the base. The horizontal arm of the ninth sternite 

 (IX. St.) is much shorter than the vertical arm. There are about 

 1 7 bristles at and near the ventral margin of this sternite from 

 before the middle to tlie apex, the four or five pi-oximal bristles 

 being close together and longer than the sternite is broad. — 

 5 . The apical margin of the seventh sternite is sinuate below the 

 centre, the upper lobe being very broad and nearly square 

 (PI. XXYIII. fig. 4), while the lower lobe is small and obliquely 

 rounded. The eighth tergite bears several small bristles above 

 the stigma and about 16 bristles on the lower portion, there 

 being- also ten or more small binstles near the apex on the inner 

 surface. The stylet is nearly three times as long as it is broad at 

 the base. 



Length: c? 2-1 mm., $ 3-2 mm. 



We have a large series collected by Mr, A. Rettig at Malcoci, 

 Roumania, ofi' Mesoancetus netvtoni, Putorius desertorum, and 

 Spcdax typhhbs. 



9. Ctenopsyllus allophylus, sp. n. (Plate XXVIII. figs. 1,2.) 



Head. — The frons (PI. XXYIII. fig. 2) is strongly and evenly 

 rounded and bears a vertical comb of 6 spines. The first spine 

 is short and very broad, while the third is placed beneath the 

 second and fourth. There is anteriorly a row of 8 bristles, 

 followed by a second row of 3 longer ones ; 2 more bristles are 

 situated in front of the comb, whilst a very long one is placed 

 about halfway between the insertion of the maxillary palpus and 

 the anterior row of bristles. The occiput beai-s 3 rows of bristles. 

 The rostrum is about one-third shorter than the fore coxa. 



Thorax. — The pronotum bears one row of bristles and a comb 

 of 21 spines. The meso- and metanotum have each 3 rows of 

 bristles, the anterior row being incomplete. The episternum of 

 the metathorax has no bristles, while the epimerum bears 6 long 

 ones (3, 3) and 1 or 2 short ones. 



Abdomen. — The tergites bear 2 rows of bristles, there being- 

 one or more additional bristles in front representing a third i-ow. 

 The second tergite has one or two slender, bristle-like spines on 

 each side at the apical edge. The seventh tergite bears 1 apical 



40* 



