(dr. a. C. OtTDEMANS). NOTES ON ACARI. 109 



Mentum as usual. 



Legs. Tarsus 2 has a thick, blunt thorn or spur distally and 

 outward (fig. 5). 



Habitat. Decaying leaves. 



Patria. Netherlands. 



Kemarh. 1. This creature differs îvoa\ P. strigifer var, sicnlus in 

 the following features: its body is wider; the line formed by the 

 lateral sides of the lateral, metapodial, ventral and anal shields is 

 more convex outward; the sternal and ventral shields are wider; 

 the genital shield lies anteriorly over the sternal shield (most pro- 

 bably not discerned by Berlese in his P. strigifer var. siculus) ; 

 behind the anal shield there is a cribrum (most probably not dis- 

 cerned by Berlese in his species); the epistema is deeply exca- 

 vated or incised. 



2. The mandible, however, resembles so exactly that of P. 

 str. var. sic, that I at first supposed my P. f urcifer to he nothing 

 else but Berlese's /'. sirigifer var. siculus; and that Berlese 's 

 drawings were wrong (he does not give any description and in stead 

 of the sense-organ of the mandible the Italian acarologist has drawn 

 a tooth!) 



9. Pachylaelaps ensifer Oudms., nov. sp. 



(With Plate 11, fig. 10—15). 



Male. Length 1340 i».. — Colour gold-gellow. — Shape differing 

 from that of the known species in its anterior part being rapidly 

 falling off between the vertex and the shoulders, which are far 

 forward. — Texture: large-scaly. — Borsai side (fig, 10) wholly 

 protected by one dorsal shield. Hairs as usual. — Ventral side 

 (fig. 11). All the shields have fused. There are, however, demar- 

 cations between the coxae. The shield is long-triangular, with its 

 top backward. The sternal and the ventral parts have three pair 

 of hairs each. Around the anus the usual three hairs, and behind 

 the anus the cribrum. 



Peritrema (fig. 11) extending beyond coxae 1. 



Epistoma (fig. 12) almost triangular, with the comb in top j the 



