( 188 ) 



a row of six or seven on tlie inner. Tliere arc only one or two sniiill luiirs 

 at the ventral edge of the mid- and hindtibiae, apart from the apical bristles. 

 The bristles of the tarsi are mnch less numerous than in /. martialis. The iirst 

 midtarsal segment bears four or five short bristles on one edge and five or six 

 at the other, while there is one single row of six hairs on the ventral surface, 

 and a row of three or four on the dorsal side. The first hindtarsal segment has 

 also only one row of hairs each on the dorsal and ventral surfaces. 



Modified segments. — 6. Tbe eighth tergite is sinuate at the apex, the edge 

 below tlie small sinus being somewhat undulate (Fig. 1, viii. t.) There are about 

 nine bristles between the stigma and the apical edge. The eighth stcrnite 

 (Fig. 2, viii. st) is truncate, bearing a row of four bristles on each side veutrally at the 



Fig. 1. 



Fig. 2. 



ajjex. The clasper (Fig. 1, CI) is oblong, as in 7. martialis, being widest at the 

 apex ; its upper angle is strongly rounded, while the lower angle is somewhat 

 produced, bearing a pair of long bristles. The finger (Fig. 1, F) is about two- 

 and-a-half times as long as it is broad, being of nearly even width throughout. 

 It bears a number of bristles at and near the apex, which is rounded. The 

 exact lengtli and number of these bristles we cannot clearly mahe out from the 

 single mounted specimen we have. 



?. The seventh stcrnite is distinctly but slightly emarginate veatrally at 

 the apex. The eighth tergite resembles that of I. martialis. Tliere are ten stout 

 bristles on the outer side and no short hairs. On the inner side the row of 

 five or six short spine-like bristles found in mai-tialis is represented in the new 

 species by one or two bristles only. 



Dr. R. Gestro, director of the Mnseo f!ivico at Genoa, sent us two pairs of 

 this flea taken ofi" Kyctino7nus ccstonii at Genoa. Dr. Gestro has kindly given 

 us one pair. 



I 



