19150 70 



IX. Genus EHADINOPSYLLA Jord. and BotU^. (1912). 



Frous with or without small tubercle not in a groove. Eye vesti- 

 gial. Anteuual groove closed, especially in female. Genal comb of 

 five spines placed vertically (figs. 62, 63). Labial palpi as in Gten- 

 ophthalmus. Male without antepygidial bristles, female with two long 

 ones on each side. Hindcoxa with patch of short spines on inner side. 

 Fifth segment of all tarsi with four lateral pairs of bristles (fig. 69). 



The genus contains only two species, both being found in Great 

 Britain. 



29. Ehadinopsylla isacanthus Bothf^. (1907). 

 (Figs. 62, 64). 



Frons with tubercle. The five spines of genal comb of equal 

 length. Prothoracic comb of 22 spines. 



cJ . Eighth sternite with a vertical row of bristles. Manubrium 

 broader proximally and slenderer apically than in pentacanthus . 

 Distance of base of finger from tip of manubrium half as long again 

 as finger. Ninth sternite with about 20 small hairs or bristles. 

 Apical edge of paramere not serrate. 



? . Sinus of seventh sternite (fig. 64; less deep than in penta- 

 canthus ; the lobes, therefore, shorter and the upper one much broader 

 and more obtuse. Apical margin of poststigmatical portion of eighth 

 tergite incui'ved below upper angle. 



Very rare, and not recorded from Scotland or Ireland. A few 

 examples were taken at Lyndhurst, New Forest, from the bank vole 

 (Evotomys glareohis), and a few at Abinger Common, near Dorking, 

 from the same host, and from the mole {Talpa etiropaea). 



30. Rhadinopsylla pentacanthus Boths. (1897). 

 (Figs. 63, 65, 69). 



Frons without tubercle. Five spines in genal comb, of which the 

 upper one is much the shortest. Prothoracic comb of fourteen spines. 



(J . Eighth sternite with a ventral horizontal row of (usually) 

 five long bristles. Manubrium fairly broad from base to beyond 

 middle, then strongly narrowed. Distance of base of finger from tip 

 of manubrium | longer than the finger. Ninth sternite with more than 

 50 small hairs and bristles. Apical edge of paramere serrate. 



