LF.PJDOPTERA HETEROCERA. 643 



Male. Body cylindrical, rather long. Eyes large, prominent. 

 Proboscis less than half the length of the body. Palpi rather long, 

 ascending; second joint curved, very much longer than the first; 

 third conical, very minute. Antennae minutely serrated beneath. 

 Abdomen extending far beyond the hind wings. Sexualia small, 

 concealed. Legs rather stout, not long; hind tibia? with four rather 

 long spurs. Wings narrow. Fore wings slightly convex in front; 

 first and second inferior veins united at the base; third full thrice 

 further from the fourth than from the second. Hind wings convex 

 in front; three inferior veins; first and second united at the base; 

 third rather remote. 



1. SCAPTIUS DITISSIMUS. 



Mas. Flavus ; caput antice, pectus et abdomen subtus alba ; 

 palpi albidi ; antennae fulvcs ; thorax rufo quinquevittatus, 

 lateribus anticis fuscis ; abdomen supra rufum ; pedes albi, 

 coxis tiblisque anticis supra testaceis, femoribus anticis supra 

 fuscis ; alee anticce cervina, purpureo-fusco variai, venis rufis, 

 triente apicali oblique flava^ macula purpureo-fusca rufo mar- 

 ginata ; posticce fuscce, subtus basi antice Jlava?. 



Male. Yellow. Head in front and beneath, pectus and under 

 side of the abdomen white. Proboscis and antennae tawny, the latter 

 red and yellow at the base. Palpi whitish. Thorax with five red 

 stripes, pale brown on each side in front of the wings. Abdomen 

 bright red above. Legs white; fore coxae and fore tibiae testaceous 

 above ; fore femora brown above. Fore wings fawn-colour, varied 

 with purplish brown for nearly two-thirds of the length ; veins red ; 

 apical third part obliquely yellow, containing a semidetached pur- 

 plish brown red-bordered spot; veins luteous. Hind wings dark 

 brown, yellow beneath in front towards the base. Length of the 

 body 5 lines ; of the wings 12 lines. 



a. Ega, on the Amazon. From Mr. Bates' collection. 



Genus 22. EMPUSA* 



Corpus lineare, cylindricum, longiusculum, sat validum. Pro- 

 boscis corporis dimidio brevior. Palpi longi, ascendentes, arcuati, 

 subtus dense pilosi ; articulus 2us lus duplo longior; 3us lanceola- 

 tus, lo paullo longior. Antennae graciles, subtus serratae. Abdomen 



* This genus is accidentally omitted in the synopsis of genera 

 (p. 588), where it should follow Scaptius. Its longer palpi, with 

 the third joint lanceolate, distinguish it from that genus. 

 PART III. 3 L 



