ACARI 535 



to receive the tooth, and is flanked by two thin, denticulated 

 blades. Behind the incision there are two small teeth, at the 

 back of which the edge is almost straight ; pilus dentarius 

 small, on a level with the posterior end of the incision, pilus 

 basalis comparatively stout, sharply pointed and inserted 

 submarginally. 



Hypostoma. Maxillary lobes straight, nearly twice as 

 long as they are wide, and the base sharply pointed ; the médian 

 edge is thin, and has in the middle a rounded tooth directed 

 straight forward. A very remarkable fact is, however, that 

 in one spécimen (N° 291) the edge is quite even, the tooth 

 being reduced. Palpi without any peculiar characteristics. 



Ventral side. Sternal shield without the darker, ring- 

 formed figure mentioned by Berlese ; in other respects it 

 resembles that of the main form. 



Legs. Legs II (fig. 23). Calcar femoralis comparatively 

 longer than in the main form, and with constricted base ; 

 processus axillaris articulated to a short stem, and bent 

 downwards, so as to lie close against the anterior edge of the 

 calcar. Processus genualis conical, as long as it is wide 

 at the base, and Avith an oblique suture running close from 

 the base of the posterior side to close to the top of the anterior 

 side. Processus tibialis slightly longer and narrower than 

 processus genualis, with a similar oblique suture running 

 farther back than in the processus genualis. 



FEMALE. 



The female differs in the following respects from the main 

 form. 



The epistoma has the médian mucro somewhat longer and 

 rounded at the top. 



The mandibles (fig. 24). Lower jaw of the same shape, and 

 the same number and position of the teeth, but the teeth are 

 smaller ; lower jaw with a deep, rounded incision opposite 

 the terminal tooth of lower jaw ; the edge lias two small teeth 



AllCH. DE ZOOL. EXP. ET GÊS. — o" SÉIUE. — T. VUI. — (VII). 38 



