18 



INTRODUCTION 



costal : touching costa. 



dehiscence : breaking of the pupal 



integument 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 the 



margin. 



fascia : a transverse band. 

 fascicle : a small group of cilia. 

 fasciculated: collected in small 



groups. 



ferruginous : rust-coloured. 

 filiform: thread-like. 

 fovea : a small round depression. 

 frenulum: one or more bristles 



from 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 from 



the margin. 



interneural : between the veins. 

 jugum: a membranous process 



from dorsum of forewings. 

 labial : attached to the labium. 

 labium : lower lip. 

 lamellate : with series of broad flat 



plate-like projections. 

 maxillae: a pair of jaws composing 



the proboscis. 

 inaxittary : attached to the base of 



the maxillae. 

 neural : of the veins. 

 neuration: arrangement of the 



veins. 



ocellus : a small simple eye ; also 

 used for an eye-like spot. 



ovipositor : organ for laying eggs. 



patagia : shoulder - pieces of the 

 thorax. 



pecten: a row of projecting hair- 

 scales. 



pectinated: with series of pectina- 

 tions. 



pectination: one of a series of 

 slender chitinous processes. 



pencil : a long slender tuft of hairs. 



penicillate : terminating in a tuft of 

 hairs. 



phylogeny : scheme of descent. 



polyphagous: feeding indiscrimin- 

 ately on many plants. 



porreded: directed straight for- 

 wards. 



posterior : further from the head. 



postmedian : beyond the middle. 



postsubterminal : following the sub- 

 terminal line. 



praecostal spur: a false vein in 

 costal angle at base of hind- 

 wings. 



praesubterminal : preceding the 

 subterminal line. 



praetornal : preceding the tornus. 



prensor : genital lateral clasping 

 organ. 



proboscis: tubular tongue formed 

 by the maxillae. 



prolcg : ventral hook-bearing pro- 

 cess serving as a leg. 



pseudoneurium : a false vine, 

 formed by a chitiuous thicken- 

 ing. 



pubescent: wholly clothed with 

 short down. 



quadrifid: cleft into four lobes. 



retinaculum : a catch to receive the 

 frenulum. 



semiapterous : with aborted wings. 



serrate : with saw-like teeth. 



