MICROLEPIDOPTERA OF PHILIPPINE ISLANDS 127 



Catalogus, pars 79, p, 494. — Clarke, 1955, Catalogue , . . Microlepi- 

 doptera . . . Meyrick, vol. I, p 43. 



Type of the genus, Canthonistis amphicarpa Meyrick, 1922 (Java). 



The following points may be added to the description of this genus. 

 Head smooth, polished. Antenna over 1. Labial palpi with second 

 joint dilated and compressed laterally, with smoothly appressed 

 short scales. Maxillary palpi short, distinct, appressed to tongue 

 (recorded as being rudimentary). Median tuft on posterior tibia 

 not always distinct, appressed bristly hairs on posterior part of tibia 

 sometimes rather raised, 



Forewing with vein Ic furcate at base (recorded as being simple). 

 Vein 11 originates just before the middle of cell, 



Male genitalia of the general Lecithocera type but with complicated 

 uncus, the hooked part being subapical. Anellus has two long and 

 slender, twice bent and sclerotized lobes, Cornuti, two clusters of 

 small spines and one slender spine. 



Female genitalia: Ovipositor short. Sterigma with a small lamella 

 antevaginalis and large lameUa postvaginalis, occupying the entire 

 sternite. Signum, a transverse denticulate plate. 



Key to the Species of Canthonistis 



1. Forewing bright ochreous, purplish central part hardly divided by a very 

 faint median transverse streak of ground color; 16-18 mm. 



C. xestocephala, new species 

 Forewing yellow, purplish central part distinctly divided from costa almost 

 to dorsum by an inverted-trapezoidal patch; 15-16 mm (Java). 



C. amphicarpa 



Canthonistis xestocepJiala, new species 



Figures 191, 193, 597 



Male, 15-17 mm. Head bright yellow, vertex covered with a 

 dense cap of closely appressed scales, polished, brightly shining, 

 yellowish grey mercury. Face pale yellow. Palpus, antenna and 

 thorax bright yellow, tip of antenna pale tawny. Abdomen sordid 

 pale fuscous yellow, venter brighter yellow, a lateral stripe fuscous. 



Forewing elongate, costa moderately curved at extremities, gently 

 concave in middle, apex pointed, termen gently rounded, oblique. 

 Bright yellow. Two large purplish-fuscous patches, rounded and 

 almost entirely confluent except above, extending along dorsum 

 beyond base to tornus and filling out the whole wing; anterior blotch 

 almost reaching costa, posterior not reaching it. Cilia bright yellow, 

 in tornus purple fuscous, 



Hindwing glossy light yellowish fuscous, apex pale yellow. Cilia 

 pale fuscous, becoming pale yellow along upper half of termen, around 

 apex and along costa. 



