216 CBYPTOCOCCUS FAG1. 



not exhibit the folded character of the integument. 

 Mentum uniarticulate ; filaments unusually long, being 

 nearly twice the length of the body. Anal lobes obso- 

 lete, their positions indicated by a single large spine 

 and a short stiff hair, and there are two similar hairs 

 anterior to the anal orifice on the ventral surface. Anal 

 orifice (fig. 4) with four spines arranged in two pairs, 

 one pair anterior, the other posterior, and between the 

 former are several circular glands ; there is also an 

 inner smaller chitinous ring. Dermis with minute 

 spines, and numerous minute tubular and large circu- 

 lar spinnerets, the latter forming distinct transverse 

 bands on the abdominal segments above. 



Long, *75-l mm. 



Ovisac of female, when isolated, more or less circu- 

 lar, highly convex, and formed of a dense white felted 

 secretion (fig. 6). Such examples may be found where 

 the insects are comparatively few in number : they are 

 almost invariably fixed in the narrow crevices of the 

 bark. Where the insects have been long established 

 the secretion forms one homogeneous mass (fig. 6 a), 

 often to a depth of five or six millimetres. 



Average diameter of isolated sac about 1 mm. 



Second-stage female lemon-yellow. It resembles the 

 larva in structural details, but is much more ovate and 

 tumid. 



Male unknown. 



Larva (fig. 7) lemon-yellow. Elongate-ovate, eyes 

 large. Antennse (fig. 8) of five joints, with the second 

 and fifth joints slightly the longest, the latter with 

 three long slender hairs; formula 2, 5, 1 (3, 4). Legs 

 (fig. 9) short and stout ; tibio-tarsal joints very short 

 and about equally divided ; claw long ; digitules to 

 claw and tarsi ordinary. Rostrum large ; mentum 

 uniarticulate; filaments exceeding the length of the 

 body. Anal extremity (fig. 10, dorsal) slightly trun- 

 cate ; anal lobes faintly projecting but extremely 

 minute, each with a single spine. On the ventral sur- 

 face immediately beneath there is another similar but 



