18

INTRODUCTION

costal: touching costa.dehiscence: breaking of the pupalintegument in emergence.dentate: toothed.dorsal: touching dorsum.dorsum: lower margin of wing.emarginate: with the margin

abruptly excavated.exserted: thrust out and exposed.external: on the side nearest themargin.

fascia: a transverse band.fascicle: a small group of cilia.fasciculated: collected in smallgroups.

ferruginous: rust-coloured.filiform: thread-like.fovea: a small rouud depression.frenulum: one or more bristlesfrom base of costa of hind-wings.

fugitive: soon disappearing.furcate: two-branched.fuscous: grey-brown.fusiform ; spindle-shaped.glabrous: without hairs.hyaline: without scales and trans-parent.

infuscated: tinged with fuscous.internal: on the side furthest fromthe margin.

intcrneurul : between the veins.jugum: a membranous processfrom dorsum of forewings.labial: attached to the labium.labium: lower lip.lamellate: with series of broad flatplate-like projections.maxillae: a pair of jaws composingthe proboscis.

maxillary: attached to the base ofthe maxillae.neural: of the veins.neuration: arrangement of theveins.

ocellus: a small simple eye; alsoused for an eye-like spot.ovipositor: organ for laying eggs.patagia : shoulder - pieces of thethorax.

pecten: a row of projecting hair-scales.

pectinated: with series of pectina-tions.

pectination: one of a series ofslender chitinous processes.pencil: a long slender tuft of hairs.penicillate: terminating in a tuft ofhairs.

phytogeny: scheme of descent.polyphagous: feeding indiscrimin-ately on many plants.porrected: directed straight for-wards.

posterior: further from the head.postmedian: beyond the middle.postsubterminal: following the sub-terminal line.

praecostal spur: a false vein incostal angle at base of hind-wings.

praesubterminal: preceding thesubterminal line.

praetornal: preceding the tornus.prensor: genital lateral claspingorgan.

proboscis: tubular tongue formedby the maxillae.

proleg: ventral hook-bearing pro-cess serving as a leg.pseudoneurium: a false vine,

formed by a chitinous thicken-ing.

p^ibescent: wholly clothed withshort down.

quadrifid: cleft into four lobes.retinaculum : a catch to receive thefrenulum.

semiapterous: with aborted wings.serrate: with saw-like teeth.