tT. BAINBRIGGE FLETCHER 155 
and in September 1913 from leaves of Eugenia jambolana(?). We also have 
this species from Moulmein. 
Larvee were found at Pusa on 24th July 1907 mining leaves of pitha 
(Trewia nudiflora). The larva was described as 3 mm. long, rather flattened, 
tapering posteriorly, yellow, head pale; afterwards 4°5 mm. long, green ; 
only four pairs of prolegs. Pupated externally on upper or underside of 
leaves or in corners of the cage, cocoon of very fine white silken threads. 
Pupa 4 mm. long, green, last two abdominal segments yellowish. Pupa 
protrudes about half its length from cocoon on emergence of moth ; pupal 
period about five days. (A. Majtaba’s Cage-slip 25.) 
Larve were also collected at Pusa mining leaves of Hugenia jambolana 
on Ist September 1913 and from these leaves moths emerged from 6th to 9th 
September. The larval mine forms a prominent blister-like blotch, inside 
which the larva moves freely about between the epidermal layers, filling the 
space with excrement. When removed from the mine the larva is unable to 
enter another leaf unless the epidermis is opened up artificially. (Dwarka 
Prasad Singh’s Cage-slip, dated Ist September 1913.) 
ACROCERCOPS DESICCATA, MEYR. (PLATE XXXIX.) 
Acrocercops desiccata, Meyr., Exot. Micr., II, 4 (1916)('). 
Described from Peradeniya and Pusa. At Pusa it was bred from larve 
mining blotches in leaves of Ficus glomerata('). 
The larva mines just below the epidermis on the upper surface of the 
leaf. The mine commences as a zigzag white line, quite prominent on the 
green leaf, and develops suddenly into a blotch. The full-grown larva is 
about 3°5 mm. long, flattened, gradually tapering posteriorly, segments 
distinct, three pairs of thoracic legs and five [?] pairs of prolegs functional 
although small; colour light green when young, changing to golden-yellow 
and ultimately to reddish before pupation. When full-fed the larva almost 
always leaves the mine and pupates elsewhere in a flattish cocoon formed of 
well-woven silk and having a very thin almost transparent parchment-like 
appearance. Hach cocoon is double, there being a small inner case inside a 
larger outer case. The cocoon is usually constructed in a corner or small 
concavity. Before emergence of the moth, the pupa wriggles out of the 
cocoon for about half its length, the empty pupa-case heing left protruding 
from the cocoon. Larve were collected in Ficus glorverata leaves on 23rd 
December 1914; one formed a cocoon on 24th December and emerged on 
20th January and another pupated on 5th January and emerged on 24th 
January 1915. (Pusa Insectary Cage-slip 1148.) 
