240 A. e. OüDEMANS, NOTKS OX ACARI. 



ward, reaching already the dorsal side between coxae III and 

 IV, having a prominence inward shortly before te stigma, 

 ending forward just before the shoulder. 



E pis to m a (Fig. 44) triangular, with a rather blunt and 

 rounded top. 



Mandibles short, reaching when wholly retracted the 

 sternal shield. Chelae (Fig. 45) short, stout; upper jaw (distal 

 half of tibio-tarsus) with small sense-organ dorsally and 

 basally, small sense-organ near the dog-teeth, two incisors, 

 a twopointed dog-tooth and a small, sharp molar. Lower-jaw 

 or telotarsus with one incisor and one dog tooth. 



Maxillae. Hypostome (Fig. 46) rather long, triangular, 

 with very thin and transparant, short, distally scarcely bifid 

 inner malae, and with convergent long outer malae or horns. 

 Palp (Fig. 47) ventrally with pointed hairs in stead of knife- 

 like hairs on femur and genu, and with a bißd not trifid hair 

 on the tarsus. 



Legs shorter than body, slender, with minute claws and 

 small, thin, smooth, hairs. 



Female. Length 512 «. Colon r pale. Shape oval, 

 top forward. Texture finely scaly on the shields, finely 

 wrinkled in the unprotected part. Dorsal side (Fig. 48) 

 partly protected by one weak shield, long 4(34 ;«., wide 

 about 180 //., long oval, much narrower than the body, so 

 that all around an unprotected wide margin is visible. Poste- 

 riorly the shield is truncate. Hairs like in the deutonympha, 

 with this exception that the two longer hairs on the posterior 

 margin of the shield are not flanked by two smaller ones. 

 Also on the unprotected margin an irregular row of very 

 small hairs. Contrary to the deutonympha the female is pro- 

 vided with a small shoulderhair accompanied by a second one 

 before itself. 



Ventral side. T r i t o s t e r n u m (Fig. 52) long, dis- 

 tally bifid (so called flat pectinate hairs). Sternal shield 



