310 Mr. R. M'Lachlaii's Characters of 



fusco sparse aureo-piloso ; thorace abdomineque supra piceo- 

 bninneis, his segmento ultimo appendicibusque testaceis; 

 pedibus pallide ochraceis, tibiis tarsisque anterioribus et in- 

 termediis nigro-annulatis ; alis anticis ad apicem vix rotun- 

 datis, aureo-brunneis ciiiereo-irroratis, fascia apicem versus 

 cinerea, basim versus maculis duabus argenteis, venis cubi- 

 talibus nigris ; posticis griseo-flavis, pterostigmate pallide 

 brunneo. 



Appendicis analis segmento ultimo lobi brevis abrupti lati 

 forma supra educto ; appendicibus inferioribus longissirais, 

 ad apicem profunde bifidis. 

 Long. corp. 4 lin. ; exp. alar. 11 lin. 



Male. — Antennce brown, annulated uith yellow ; palpi brownish ; 

 eyes black, ocelli conspicuously yellowish white ; head pale fuscous, 

 sparingly clothed with golden hairs ; thorax pitchy brown, clothed 

 with golden hairs in the middle; abdomen above dark pitchy, 

 brown, last segment and appendages testaceous ; legs pale ochre- 

 ous, anterior and intermediate tibiae and tarsi annulated with 

 black : anterior wings somewhat rounded at the apex, golden- 

 brown, with scattered ashy-grey spots, a curved ashy-grey fascia 

 arises at the anal angle and reaches two-thirds across the wing ; 

 from the costa, near the apex, springs a short band, which some- 

 times unites with the fascia, forming a somewhat interrupted band 

 across the wing, towards the base are two silvery spots, with a 

 black spot between them ; veins of the cubitus conspicuously 

 blackish, a row of faint fuscous spots round the apical margin, 

 ciliae golden-yellow ; posterior wings greyish-yellow, pterostigma 

 and the extremity of the apical veins brownish. 



Upper margin of the last abdominal segment produced in the 

 middle into a short broad lobe, with a depression in the centre, 

 the margin cut off very abruptly; appendices superiores almost 

 concealed under the lobe, small, dilated at the apex, which is 

 emarginate ; appendices inferiores very long, basal joint very 

 broad, the margins turned inwards; terminal joint deeply but un- 

 equally cleft at the apex, the forks not divaricating; penis sheaths 

 curved upwards and approximating. 



Of this pretty species I captured eight specimens (all males) at 

 Shaugh Bridge, near Bickleigh, Devon, on the 16th Sept. 1861. 



Wishing to be sure, before venturing to describe it, that it was 

 not already known on the Continent, I sent specimens to Dr. 

 Hagen, and he considers it to be altogether new. In the furcate 

 inferior appendages it partially agrees with R. venusta, Fict. MS., 



