238 OBTHEZ1A INSIGNIS. 



especially the tibiae and tarsi (fig. 17). Anal orifice 

 with six long hairs. Abdominal spiracles tubular, 

 small; orifice dilated. 



Larva, after treatment with potash, ovate ; extremi- 

 ties usually equally rounded. Gland-tracts forming com- 

 paratively narrow transverse bands on the abdominal 

 segments. Antenna (fig. 18) of six joints; apical 

 joint equalling the length of the third, fourth, and 

 fifth together; formula 6, 5 (1, 2) (3, 4) ; apical spine 

 very long, acute. Anal orifice with six hairs; ring 

 with a double series of punctures. Mentum biarticu- 

 late. 



Male. Green (1. c.) briefly describes the male " as 

 a very graceful little insect . . . of a slaty-grey colour, 

 with very long slender antenna, a single pair of 

 greyish wings, and a tuft of long white silky filaments 

 at the end of the body. The eyes are black and 

 divided into numerous facets." Mr. Green also gives 

 an excellent figure of the male in the ' Tropical Agri- 

 culturist ' for January, 1895, from which one may 

 gather that the insect is remarkably like the male of 

 Newsteadia (Orthezia) floccosa (PI. LXXIV, fig. 9), only 

 that the colour of the two insects is different. 



Habitat (under glass). "In August [1887] Mr. 

 Edward T. Browne, Uxbridge Lodge, Shepherd's 

 Bush, sent me several examples of this species, which 

 he had obtained in the Royal Gardens at Kew^, re- 

 questing that I would describe it if new, and he added 

 the following particulars : ' First found on Stroll- 

 lanthes, a Chinese plant, which has been in the 

 Economic House three years ; it may now be seen in 

 the adjoining house on other foreign plants' " (Douglas, 

 I.e.). Both Mr. Green and I found the species still 

 existing at Kew in 1896; it was, at that time, most 

 abundant on Strobilanthes gossypinus and Manettia 

 Iricolor. It may be important to add here the report * 

 of the Assistant Curator of the Royal Botanic Gardens, 

 Kew, with reference to the food-plants of this insect 



* 'Bull. Roy. Gardens, Kew,' Nos. 102, 103, p. 163 (1895). 



