1915.] 185 



Fig. 6. — Kuwanina parvus. 



a. Adult female, optical section, X 52. 



h. Antenna, X 400. 



c. Cribriform plate, X 400. 



d. Dermal pores from abdomen, X 400. 



e. Anal ring, X 400. 

 /. Nymph, X 108. 



g. Antenna of nymph, X 400. 



h. Dermal poi-e of nymph, X 400. 



i. Larva, X 108. 



j. Antenna of larva, x 400. 



k. Anal ring of larva, X 400. 



Plate XVII. 



Fig. 1 .—Lecanopsis brevicornis. 



a, i, c. Different forms of antenna of adult female, X 280. 

 Fig. 8. — Diaspis pentagona. 



Pygidium, X 280. 



Fig. 9. — Diaspis persimilis. 

 Pygidium, x 280. 



NOTES ON XANTHIA {MELLINIA) OCELLABIS Borkh. 

 BY H. WORSLEY WOOD. 



(Concluded from p. 156.^ 



I have not been able to examine the genitalia of ab. austauti (3), 

 but it is no doubt a form of Staudinger's ab. lineago (2). A number 

 of the male genitalia of the last named form have been mounted and 

 examined this winter, and they are not to be distinguished in any way 

 from those of typical ocellaris, so that the arrangement in the Museum 

 which gives 2 and 3 to palleago Hb. 192^=oceJlaris Bkh. is probably right. 



Ab. rubra (1) judged by its genitalia appears to be specifically 

 distinct, but belongs to the group. Exact knowledge of the early 

 stages of all these forms is wanted before the limits of the species 

 can be exactly determined. Algerian forms of gilvago offer the same 

 difficulties, as there were certainly two distinct species represented in 

 Herr Piingeler's series of gilvago ab. algirica fi-oin Batna. 



Ab. intermedia. Habich, " VI Jahresbericht des Wiener Entomologischen 

 Vereines 18t>o," Vienna, 1896, p. 49 and figure, — gilvago Hb., 413 = Ent. Mo. 

 Mag., fig. 7. Exactly of the size of ocellaris with the same wing shape, i.e., the 

 sharply arched wing tips, it bears in all details the markings of gilvago on the 

 reddish grey ground colo\ir which chai-acterizes ocellaris, and has even further 

 the speckled wing-fringes of gilvago which neither ocellaris nor its ab. lineago 



