170 DACTYLOPIUS WALKERI. 



(figs. 2, 2 a) of eight joints, the last joint being much 

 the longest ; the other joints are comparatively short 

 and almost of equal length throughout ; all the joints 

 with several hairs; formula 8 (1, 2) (3, 4) (5, 6, 7), 

 or 8, 2, 3, 1 (4, 5) (6, 7). Legs (fig. 3) strong, and 

 longer than the antennae, rather thickly set with hairs, 

 those on the underside of the femora being unusually 

 long ; tarsi very short ; digitules short and faintly 

 knobbed. Anal lobes normal, each with a single long 

 hair and two or three shorter ones. Anal ring with 

 six long hairs, the intervening spaces with minute 

 hairs. Dennis with numerous fine hairs and circular 

 spinnerets. 



Long, 2*25-4 mm. ; wide, vo-l'oO. 



Ovisac composed of white cottony filaments, which 

 are more closely felted in the centre than at the ex- 

 terior. The whole structure is very fragile, and can 

 only be obtained in a perfect condition by confining 

 the old adult insects to a small tuft of grass by means 

 of gauze or a glass cylinder. For convenience the 

 tuft of grass may be grown in a flower-pot, and it is 

 best not to confine the insects until they are well 

 matured. 



Male (fig. 4) pale red-brown; antenna and legs 

 paler ; eyes and ocelli black; head, thorax, and abdomen 

 mealy. Abdomen long and narrow ; caudal filaments 

 a little longer than the body and rather stout. Wings 

 narrow. Antennge (fig. 5) unusually long and stout; 

 hairs numerous ; two of those at the apex are slightly 

 longer than the rest, and very faintly clubbed. Legs 

 rather long, hairy ; tarsi short ; digitules to claw 

 extremely fine and short, those of the tarsi ordinary. 

 Grenital armature (fig. 7) with the penis-sheath pro- 

 jecting considerably beyond the outer valve, the tip 

 being strongly recurved. Caudal setaa (fig. 7) very 

 long. 



One of the males in my collection has a very extra- 

 ordinary malformed intermediate leg (fig. 8). 



Habitat. On Agrostis vulgarls and other coarse 



