340 LEPIDOPTERA HETEROCERA. 



1. Hyalurga fenestra. 



Nigra, subtus alba ; caput et thorax albo maculata ; thoracis latera 

 tegulis obliquis luteis ; abdomen supra luteum, vittis quinque 

 nigris duabusque albis ; alee limpidce, anticce margine fascia 

 apicem versus luteis nigro cinctis, vittaque brevi postica cine- 

 rece ; posticce vittis duabus posticis cinereis. 



Phalaena Bombyx fenestra ? Linn. Mus. Lud. Ulr. 372. Clerck, 

 Icon. pi. 55, f. 1. Fabr. Sp. Ins. ii. 170, 18; Mant. Ins. ii. 

 109, 20. Gmel. ed. SysL Nat. i. 5, 2407, 9. 



Hyalurga fenestrigera, H'ubn. Verz. Schmett. 174, 1795. 



Sphinx adscita Egeon, Cram. Pap. Exot. i. 91, pi. 59, f. JB. 



Surinam. 



a — d. Venezuela. From Mr. Dyson's collection. 



Genus 10. HYELOSIA. 



Corpus cylindricum, fere lineare, longiusculum, sat gracile. 

 Palpi ascendentes, capite vix breviores; articulus 3us minimus, 

 conicus. Antennas maris late pectinatae corporis dimidio multo lon- 

 giores, fcemince subpectinatas breviores. Abdomen alas posticas 

 paullo superans, man's basi compressum,/6emin«? longi-subfusiforme. 

 Pedes sat validi ; tibiae anticas subdilatatae, fcemince calcaribus duo- 

 bus minutis apicalibus. Alas longas, sat angustae; anticae venis 

 quatuor inferioribus. 



Anthomyza, p., Swainson, Zool. Illuslr. 2nd Ser. pi. 124. 

 Hyelosia, p., H'ubn. Verz. Schmett. 174. 



Body cylindrical, nearly linear, rather long and slender. Palpi 

 ascending, nearly as long as the head ; third joint very small, coni- 

 cal, not more than one-sixth of the length of the second. Antennas 

 deeply pectinated and much more than half the length of the body 

 in the male, minutely pectinated and much shorter in the female. 

 Abdomen of the male compressed towards the base, extending for 

 one-fourth of its length beyond the hind wings; that of the female 

 elongate-subfusiform, hardly passing the hind wings. Legs mode- 

 rately stout; fore tibiae slightly dilated; hind tibiae with two minute 

 apical spurs. Wings long, rather narrow; fore wings with four in- 

 ferior veins. 



