225 



hairs. These 10 hairs are hairy. Smooth, sraall hairs : one pair 

 slightly before, one paire aside of the genital openiug; one pair 

 close to the coxal plates IV ; oue pair on the level of the auterior 

 end of the anal split. Chitinous bar before the genital opening 

 ouly with a square median thickening. 



Mandibles (Fig. 30). Upper jaw with a curious long molar which 

 fits in a deep behind the dogteeth of the lower jaw, which lacks 

 a molar. My description and drawing differ from those of Michael. 

 Most probably the British Glycyphagus domesticus is a variety of 

 the coutinental one. 



Maxillae (Fig. 31) longer, navrower, more elongate than iu GL 

 cadaverum Schrank. Coxae of course coalesced to form the whole 

 underside of the head; inner malae fused to form a mediau oval 

 piece ; outer malae like iu GL cadaverum but slenderer ; palps with 

 only two free joints, viz. the tibia and tarsus; trochanter, femur 

 and geuu coalesced with hypostome; trochanter discernable; femur 

 and genu fused. 



Legs. Dorsal side (Fig. 28). Trochanter I with split-like pseudo- 

 stigma and before it a bifid, feathered pseudostigmatic hair. Genu 

 I and II proximally with two hairy hairs which are a little longer 

 thau the genu. Genu I distally with a small olfactoric and a sinall 

 tactile hair. Genu II distally with a small olfactoric hair. Tibia I 

 and II distally with a long tactile hair. Tarsi I and II proximally 

 with 3 olfactoric hairs of which the central one is the longer (see 

 also fig. 32). Tibiae III and IV distally with a tactile hair. Ventral 

 side (Fig. 29). Coxal plates I and III with a fine hair in the middle. 

 Trochanteres I and II with a long thin-haired hair. Femora I 

 and II with a ditto in the middle ; tibiae I and II distally with 

 two haired hairs. Trochanter III, genu III, tibia III, femur IV, tibia 

 IV distally with a hairy hair. All the tarsi smooth, without villous 

 scale, only with three hairs, of which the first about in the middle, 

 the two others in the distal half. (Fig. 32). 



Feniale (Fig. 33 and 34). Length 400—750 ft. — Colour, texture 

 and shape like those of the male. Dorsal side perfectly like that of 

 the male. Copulation tube terminal, so that it may become some- 



