160 LIFE-HISTORIES OF GRACILLARIAD«& 
v 
ACROCERCOPS VANULA, MEYR, 
Acrocercops vanula, Meyr., Wytsm. Gen. Ins. fase., 128, p. 17 (1912)(4), B. J., 
XXIII, 121 (1914)(2). ; 
Described:-from Karwar, in North Kanara('), 
“Larva mining large blotches in leaves of Terminalia tomentosa (Com- 
bretacez) ; pupa yellowish, in large oval cream-coloured cocoon spun usually 
on vein inside the mine, the cuticle subsequently peeling off and leaving the 
cocoon exposed ; this seems the normal arrangement, but in captivity the 
larva sometimes makes an external cocoon in a recess on surface of leaf 
(Maxwell) ’’(?). Mr. Maxwell (én hit.) gives the name of the foodplant as 
T. paniculata. 
LIOCROBYLA PARASCHISTA, MEYR. (PLATE XL, FIG. 2.) C-4 
Tiocrobyla paraschista, Meyr., Exot. Mier., I, 5 (Oct. 1916)(!); The ae DD 
Parectopa labrodes, Meyr. MS. (cned.) GrC muds, 1. 165 ( Nav. igre) 
Reared at Manchikeri, North Kanara, “in May from larvee mining in 
leaves of Butea frondosa (Leguminosee) (Maxwell), and at Pusa in February 
from larve mining in leaves of Cajanus indicus (Fletcher) ; it may therefore 
probably feed in some other Leguminose. Larva mines a blotch beneath 
upper cuticle of leaf, building up two heaps of excrement, between which the 
larva rests in a covered passage leading obliquely to under side of leaf, where 
a small open door exists in a dry opaque patch; cocoon external, oval 
(Maxwell) ’’(*). 
This species has been reared at Pusa on several occasions from larve 
mining leaves of Cajanus indicus in April, September, October and December, 
and from leaves of Desmodium gangeticum in January and July. 
. The larva mines just under the epidermal layer of either surface, but in the 
case of Cajanus usually the upper surface of the leaf, producing an extremely 
irregular brown patch measuring about one square inch in total area. 
(Plate XLL) In the case of mines in Desmodium leaves the greater portion of 
the mine is not visible from the opposite side of the leaf; a small portion 
only, where the mesophyll tissue also has been eaten, is visible from the 
opposite surface as a dry brown patch. The larva thrusts its anal extre- 
mity throuzh a hole in the lower surface of the mine to eject its frass and 
the gallery is therefore kept clean. The larva is green, broadest across the 
thoracic portion, tapering posteriorly, segments distinct ; head long, brown ; 
only four pairs of prolegs. The larva leaves the mine before pupation and 
forms a white cocoon, about 6 mm. long, on the surface of the leaf in any 
convenient corner, often alongside a midrib on the upper surface of a leaf, 
