Fi 



Iletcrogamasus clavii^er. Tgdii. 

 HypoStoma 150 ■ . Fig. 2. 

 Stoma 150 X . 



Epi- 



4 IVAR TRÄGARDH, (Schwed. Südiiolar-Exp. 



Stigmata situated behind coxa.' IV; pcritrcniata long, extending closely along 

 the outer side of the coxa.' and very nearly meeting on the dorsal side above the 

 pseudocapituluni. 



The legs. The legs long, tlie first pair measuring 0,7.' mm. the 3rd 0,53. and 



the 4th 0,53 mm. 



The cuticle coarsely granulated by short 

 irregular, raised ridges arranged transversalh". 

 Legs I (PI. I, fig. I); coxa and trochanter 

 with fine hairs of ordinary shape; femor, genu, 

 tibia and tarsus on the dorsal, exterior and 

 interior side with short clavate hairs, generali)' 

 inserted in small tubercles; on the ventral side 

 they are provided with two straight bristles 

 each, situated in the middle and at the same level, 

 one directed obliquely outward, the other inward; 

 on the ventral side of the tarsus about 6 sharp bristles and on the dorsal side at 

 the end a bundle of fine sense hairs of which 3 — 4 are longer than the others. 

 Femur with small, distincth' demarcated basifemur. Telofemur and genu of equal 

 length, a litte shorter than the tibia and the narrow, slightly curved tarsus, which 

 are also both of equal length; no basitarsus. 

 Claws and caruncle very small. 



Legs II (PI. I, fig. 3) thick, with long, narrow, horn-shaped calca}- feiuoralis: 

 no processus axillaris, only a sharp bristle inserted in a small tubercle; processus 

 genualis rather long, sharply pointed, directed obliquely forward; on the outer side 

 of the femur far back one large, clavate hair, on the ventral side of the tibia in the 

 middle one bristle and on the ventral side of the tarsus 4 straight bristles; other 

 hairs clavate. Distinct basitarsus. 



Legs III and IV with long tarsi, graduall)- narrowing towards the end; basi- 

 tarsi long, measuring more than ' 3 of the whole length of the tarsi. 



Aiitbiilacres with bilobated caruncle and two subunguinal, narrow slips. 

 Epistoina (Text-figure 2) short, triangular, with slightly convex edges, 

 projecting in a short narrow. c\'lindrical spine, bifurcated at the top; the edges with 

 4 — 5 sharp teeth. 



Styli present, rather long and narrow. 



Hypostoma (Text-figure i) three pairs of the hvpostomatic hairs situated near 

 the front margin; maxillary lobes single-jointed, rather long and narrow and only 

 slightly curved. 



The mandibles (PL I, fig. 6); the lower jaw curved at right angles at the end, 

 with large, sharply pointed terminal tooth; the ventral edge of the jaw concave; 



