ABDOPTERA. 103 



Proboscis projecting, perpendicular, as long as the head. Antennae 

 porrect, 4-jointed ; first joint cylindrical ; second cyathiform ; third 

 conical, shorter than the fourth ; fourth very long, setiform. Wings 

 incumbent and parallel in repose ; cubital vein forked ; costal vein 

 vanishing at the tip of the wing. Coxes shorter than the femora. 



1. longicornis, Mg. ! zw. iii. 12. 1. pi. 22. f. 6, 7 (1822) ; Mq. ; 

 Ztt. Nigra, gracilis, subtus nigro-chalybea, alis subcinereis, halteribus 

 pedibusque fulvis, tarsis fuscis. Long. 2-| ; alar. 5 lin. 



Body very slender, black, with a slight tinge of chalybeous, which 

 prevails most beneath. Proboscis dark tawny. Antennae black, very 

 long and slender. Wings pale grey ; stigma pale brown. Halteres 

 tawny. Legs tawny ; tibia3 much darker than the femora ; tarsi brown ; 

 hind tarsi black. 



Very rare. In Mr. Stephens's collection. (E. I.) 



Genus V. ARDOPTERA. 



ARDOPTERA, Mq. d. n. (1827). Leptosceles, Hal. 



Corpus gracile. Caput nutans, oblongo-ovatum ; gence sub oculis inter- 

 rupts ; epistoma lineare, attenuatum. Oculi magni, ovati, approxi- 

 mati. Proboscis brevis, crassa, palpis incumbentibus. Antenna 

 4-articulatae ; articulus primus minutus ; tertius ovatus, compressus, 

 quarto brevior ; quartus longissimus, setiformis. MSB incumbentes ; 

 vena cubitalis furcata ; vena costalis marginem posticum attingens. 

 Pedes graciles ; coxce femoribus breviores ; coxae anticae longae. 

 Body slender. Head oblong-ovate, inclining forwards ; cheeks inter- 

 rupted by a notch under the eyes ; epistoma linear, attenuated. Eyes 

 large, oval, approximate. Proboscis short, thick; palpi incumbent. 

 Antennae 4-jointed ; first joint small ; third oval, compressed, shorter 

 than the fourth ; fourth very long, setiform. Wings incumbent and 

 parallel in repose; cubital vein forked; costal vein attenuated around 

 the posterior margin. Coxa shorter than the femora ; fore coxae long ; 

 onychia and empodium small, this scarcely thickened. 



1. irrorata, Mn. d. s. emp. 13. 17 (1815); Hal.; Mg. Nigro-aenea, 

 capite argenteo, antennis nigris, thorace albo fasciato et utrinque notato, 

 alis cinereis albo-guttatis ad costam subfuscis, halteribus flavis, pedibus 

 fulvis, tibiis tarsisque apice fuscis. Long. 1-1 \ ; alar. 2-2^ lin. 



Body aeneous-black. Head silvery. Eyes black when dead. Pro- 

 boscis, palpi, and antennas black ; third joint of the antennae conical, 

 compressed, a little longer than the two preceding ; fourth more than 

 twice the length of all the preceding. A whitish stripe on the thorax, 

 and some white marks in front and on each side. Wings grey, brownish 

 along the fore border, chequered with white spots, which are largest and 



