f{. BAINBRIGGE FLETCHER 19 
with minute velvety hairs ; abdominal segments with similar but longer hairs 
which are, however, confined to a median transverse belt on each segment ; 
anal segment with cremastral hooks which retain the pupa-case within the 
cocoon on emergence of the moth. The pupal period is about four days. 
The moth flies at night, hiding during the daytime in the soil, in crevices 
or under clods. It is strongly attracted to light at night. The moth has been 
found to live for sixteen days in confinement ; under natural conditions its 
life is probably much longer. ; 
The life-cycle is about three weeks, of which the egg stage lasts for twelve 
to fourteen days, and the pupal stage for four days. Under colder conditions, 
the cycle may be prolonged to six weeks. Under suitable conditions of tem- 
perature and presence, of foodplants, this insect seems to breed throughout 
the year and no regular broods can be distinguished. 
PLATYEDRA GOSSYPIELLA, SAUNDERS. (PLATE XIX.) 
Depressaria gossypiella, Saunders, T. E. 8. (1), HI, 285 (1842)(}). 
Gelechia gossypiella, Meyr., B. J., XVI, 592, (1905)(?); Wlsm., Faun. Hawaii, 
I, 731-733 (1907)() ; Lefroy, Ind. Ins. Pests, p. 93, ff. 104-106(*), Ent- 
Mem., I, 223, f. 69(5), Ind. Ins. Life, p. 534, f. 344 (1909)(6) ; Durrant, 
Bull. Ent. Res., II, 203-206, fig. (1912)(7) ; Fletcher, 8. Ind. Ins., p., 454, 
t. 42 (1914)(8) ; Willcocks, Ins. Pests Egypt, Vol. I, pt. i, pp. 1-339, 17 
figs., 10 tabs. (1916)(9) ; Gough, Egypt Agric. Ent. Bull. 4 (1916)(19) ; 
Fletcher, Proc. Second Entl. Meeting, pp. 10, 111-114, 127, 129, 130, 
(1917)(2), 
Pectinophora gossypiella, Busck, Journ. Agri. Res., IX, 243-370, t. 7-12 (1917) (*) ; 
Ballou, Journ. Ec. Ent., XI, 236-245 (1918)(}%). o 
Platyedra gossyprella, Meyr., Exot. Micr., I. 136 (1918) (4); Sutinn Ge: hod 
ins. T 
44 5 
known to occur in the Straits Settlements, Philippines, Japan (?), Hawai, ~ 
Zanzibar, East Africa, Sudan, Egypt, Brazil, Mexico and the Southern United \: (sn ‘= 
States. 
P. gossypiella occurs commonly throughout the Plains of India, Burma 
and Ceylon and is everywhere a pest of cotton, serious in most localities, espe- 
cially so in the United Provinces, North-West Frontier Province and Madras. 
It is especially evident towards the end of the season when a large percentage 
of the bolls and seeds is attacked. In all districts exotic varieties seem 
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This species, the notorious ‘“‘ Pink Bollworm” of cotton, was_ first, pat ; 
described from Western India(1) and there is little doubt but that India was its : 
original home, whence it has been carried in recent years with cotton-seed + 
to most parts of the world, so that it is now very widely distributed and is --3, ‘ 
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