248 PROCEEDINGS OF THE NATION Al MUSEUM. vol. xxiii. 



larva bores throiioh to the upper side, forming a more or less trumpet- 

 shaped upper l)loteh extending- along the edge of the leaf. When 

 fresh the mine is not mueh discolored, but when old it becomes whitish 

 brown. Mr. Kinzel says that this species becomes very abundant and 

 injurious to the Randia in summer time. 



Larva is cj'lindrical, with 14 legs, yellow; mandibles light ))rown. 

 When mature, it is about 4.5 nnn. long; it leaves the mine and makes 

 a slight fold on under side of a leaf, drawing the edge down with 

 transverse cables of white silk, under which the oval white cocoon is 

 spun. 



CHILOCAMPYLA, new genus. 



(Type ChUocampyJa dyariella Biisick. ) 



Antennae nearly 1^, simple; basal joint somewhat flattened and 

 enlarged, with thick covering of scales, and with large heav}- pecten 

 beneath, giving the appearance of an ej^ecap, although not thus used; 

 antenna^ at rest, ])eing porrected obliquely in front. Lal)ial palpi long, 

 slender, smooth, curved, in the living insect, erected before and kept 

 close to face, reaching the vertex; in dead specimens drooping, later- 

 ally divergent; second joint a little thickened at apex; terminal nearly 

 as long as second, pointed. Maxillary palpi moderate, porrected. 

 slightl}" curved upward. Tongue very long, scaled at base. Head 

 and face smooth; head elongate narrow; face retreating. Eyes large, 

 prominent. Anterior wings narrow, much elongated; in female 

 pointed, and of normal form; in male with a costal depression at two- 

 thirds from base, making the wing one-third narrower at that point, 

 widening out again toward tip, which is rather blunt. The males can 

 at once be distinguished b}" this peculiarity. Posterior wings setiform; 

 costa excised from basal third to apex. 



Vejiation. — In female: 11 veins; 3 absent, and T shortl}' stalked, 

 7 to costa, 1^ simple; in the male the costal depression causes a nar- 

 rowing of the cell and obliterates A'ein 10; cell widens out again after 

 the costal depression, and venation is otherwise identical with that of 

 the females. Hindwings: 8 veins; 7 to apex; cell open between 4 and 5. 



Anterior tibit^ thickened at apex, with smooth scales. Middle tibiae 

 smooth, thickened at end, with heav}" tuft of scales; together with 

 anterior legs prominentlv displayed, Gracilaria- fashion, when insect is 

 at rest. Posterior til)ia^ al)ove with two longitudinal rows of bristles; 

 inner spurs at the end of tibia several times as long as outer spurs. 



An oflfshoot from Gracilaria, and allied to Spanioptila Walsingham, 

 which genus 1 know only from description; but diflering in venation 

 and the smooth middle tibite. Also, apparently, by a nuich more 

 strongly developed pecten on first anteunal joint, besides the curved 

 costa of the males. 



