SIGNOKETIA. 



Maskell * lias described a variety from Australia (var. 

 australis), which, from its yellowish-brown colour, 

 certain minute differences, and the greater size of the 

 puparium, may very probably take rank as a distinct 

 species. 



SlGNOBETIA LUZULJE (L. Dufour). 



(PI. XL, figs. 1-12.) 



AspidiotuA ? liizulae, L. Dufour ; Ann. Soc. Ent. Fr., 

 3 ser., vol. iv, p. 208, pi. v, fig. 4 (1864). 



Signoretia luzulde, Signoret; Essai, p. 181, pi. vi, 

 figs, la, b, c. 



Signoretia clypeata, Targioni-Tozzetti ; CataL, p. 34 

 (1868). 



Adult female (fig. 3) very elongate, sides almost 

 parallel, posterior extremity gradually rounded, an- 

 terior extremity rather suddenly so, and it is pro- 

 duced and extends considerably beyond the inser- 

 tion of the antennae. Dermis with fine short hairs 

 along the margin, and many very long ones on all the 

 abdominal segments and thoracic and cephalic areas ; 

 stigmatic areas (fig. 7) with two blunt, horn-shaped 

 spines, and a few spinnerets. Anal ring (fig. 6) with 

 six comparatively long hairs; the retractile sac, to 

 which the ring is attached, is short, and when extended 

 is spherical in shape ; when retracted the hairs scarcely 

 extend beyond the anal lobes ; the latter have the anal 

 angles frequently obtuse, and are furnished with one or 

 more apical hairs. Antennae (figs. 4, 4 a) of eight joints, 

 of which the third, fourth, and fifth are longest ; there 

 are three hairs on the fifth, two on the sixth and 

 seventh, and several on the apical joint; all are short 

 and slender; formula 3, 4, 5, 2, 1 (6, 7, 8). Legs 

 (fig. 5) longer than the antennas, slender; there is a 



* ' Trans. New Zealand Inst./ vol. xxv, p. 223 (1892). 



