1894.1 183 



Scale of the <? with the fringe (flg. 2) and colour like that of the ? ; but ia 



much smaller, elongate, sides parallel, ends widely rounded ; dorsum slightly ridged. 



Long., 1 mm. 

 (? unknown. 



Larva yellowish-brown when dead, rery elongate, sides nearly parallel, some 

 slightly widest behind ( ? ?) ; margin, and two sub-dorsal lines, with curly white 

 glassy filaments ; mentum uniarticulate, unexpanded filaments same length as 

 mentum ; anal tubercles very small, each with a single short hair ; antennse of 6 (?) 

 joints much swollen at the apex, and with a few long hairs ; legs rather short, cox£B 

 pointed on the outside, tarsi a little shorter than the tibire, claws and digitules of 

 the tarsi exceedingly long and slender ; the latter nearly as long as the tarsus and 

 elaw together, are attached to the tarsus beneath, and immediately behind them is a 

 strong ccnstriction running obliquely across the tarsus to the apex in front, forming 

 a projecting spine-like point ; margin all round with about 28 large double spin- 

 nerets, arranged wide apart. 



Hah. : Baluchistan ; on a very strong grass-like plant, leaves vary- 

 ing from three-quarters to half an inch wide, strongly ribbed, and 

 very hard when dry. Collected by Lieut. E. Tomlin, and forwarded 

 from Calcutta, January 21th, 1894. 



Taking the characters altogether, the species is more conformable 

 to the genus Pollinia than any other ; but the uniarticulate mentum, 

 and the uncertainty about the anal ring in the $ make it somewhat 

 doubtful. In some respects it approaches Flanchonia, but in this 

 genus there is a double row of marginal spinnerets and fringe, and 

 the scale is not glassy. 



The large size of the scale, and the curious fringe at once dis- 

 tinguish it from any other known species. 



Described from many specimens. 

 Chester : June 29ih, 1894. 



BACTRA FURFUR AN A SEED, WITH A DESCEIPTION OF THE 



LARVA. 



BY A. THURNALL. 



After a search extending over several seasons, I at last succeeded 

 in finding this exceedingly local species in the early part of last sum- 

 mer (1893), and having procured a series, I turned my attention to 

 the possible food-plant of the larva ; having made up ray mind that it 

 must be one of two plants growing on the spot, and not anywhere else 

 in the immediate neighbourhood, T resolved to look it up early this 

 spring. Accordingly, May 1st found me once more on the ground, 

 and seeing some of the suspected food-plant just appearing, some 

 roots were dug up, and the plants minutely examined upon my return 

 home, but not a larva of any kind could be found ! Another visit 



