OBSERVATIONS ON SCALE-INSECTS (COCCIDAE)— III. 



357 



Lecanium adersi, sp. no v. . ■ ^ ^ n^io,,^ 



FemaU, adult. Very flat, irregularly ovate, and narrowed m front Colour 

 varving from chocolate-brown to brownish buif. Antennae (fig. 10, a) of six or 

 seven segments ; in the latter the 4th is much the longest ; in some examples the 

 articulation of the 3rd with the 4th is very faintly indicated or entirely absent. Legs 

 long and slender, especially the middle and hind pairs. Stigmatic clefts (fig. 10, b) 

 invaginated ; stigmatic spines stout, bluntly pointed and of varpng lengths ; there 

 are from twenty to twenty-two of these organs. Marginal spines (fig. 10, c) falci- 

 form and finely serrated on one side. Anal lobes (fig. 10, d) with the base exceedingly 



Fi-. 10. Lecayiium adersi, Newst., sp. n., ? ; a antennae-; 

 ° b, stigmatic cleft ; c, marginal spmes ; d, anal lobes. 



short, and the outer edge very long and strongly curved or arched. Anal cleft 

 about one-fifth the length of the body. Derm cells minute and very widely sepa- 

 rated ; there are, however, several of these or similar organs grouped together 

 just in front of the anal orifice. 



Length 4-75-5-50 mm. 



Zanzibar: Marahubi, on mango leaves, 24.iv.13. {Dr. W. M. Aders). 



Closely allied to Lecanium bicruciatum, Green,* from which it differs chiefly in 

 the multiplication of the stigmatic spines. 



Lecanium africanum, Newstead. n- /lonoN 



Lecanium viride var. ofricanum, Newstead, Ent. Mo. Mag. (2) ix, p. 9o (1898). 

 Lecanium viride (Green), Newstead, Bull. Ent. Res. i, p. 187 (1910). 

 Fenmh, adult. Colour of dried specimens often yellowish green; others are 



bright ochraceous, straw -coloured or pa leJ^ ddish-bro^vn ; eyes black. Dorsum , 

 * Coco. Ceyl. iii, p. 214, 1. LXXVI. 



