652 CATALOGUE OF 



Male. Pale testaceous. Eyes lurid. Antennae piceous, testaceous 

 at the base. Abdomen with a blackish lanceolate dorsal stripe. Spines of 

 the hind tibiae with black tips ; hind tarsi pale red. Fore wings pellucid 

 for half the length from the tips ; veins pale. Hind wings pellucid ; veins 

 black, blue towards the base and along the interior border. Length of the 

 body 13 lines; expansion of the fore wings 24 lines. 



a. Santarem. From Mr. Bates' collection. 



2. STENACRIS CONCOLOR. 



Mas. Testacea ; caput longiusculum ; antenna picete; prosterni spina 

 crassa, obliqua ; alee anticce apices versus diaphana. 



Male. Testaceous, shining, very slender, nearly cylindrical. Head 

 smooth, somewhat elongate ; front much retracted, with four distinct 

 keels; inner keels parallel, approximate; outer keels diverging towards the 

 face. Eyes tawny, elliptical, slightly prominent. Antennae piceous. Pro- 

 thorax in structure like that of S. lanceolata. Prosternal spine thick, oblique. 

 Abdomen compressed. Hind femora as long as the abdomen ; hind tibia3 

 a little shorter than the hind femora, their spines with black tips. Fore 

 wings pellucid towards the tips; veins pale. Hind wings pellucid; veins 

 blackish. Length of the body 12 lines; expansion of the fore wings 

 19 lines. 



It does not differ from S. lanceolata, except that the head is rather 

 shorter. 



a. Para. 



Group 2. 



Corpus gracillimum, fere cylindricum. Caput productum ; fastigium 

 conicum, planum ; frons quadricarinata, valde retracta. Oculi obliqui, nou 

 prominuli. Antenna3 graciles, subplana?, capite prothoraceque ad unum 

 paullo longiores. Prothorax subtiliter scaber, vix carinatus, postice vix 

 latescens, marginibus rotundatis. Prosterni spina gracilis, subcompressa, 

 subobliqua, apice rotundata. Pedes longi, graciles. Ala? antics peran- 

 gusta?, corpori aequilonga3. 



Body very slender, nearly cylindrical. Head smooth, elongate; tip of 

 the vertex flat, prominent, conical; front much retracted; keels slight; 

 inner keels converging near the face ; outer keels diverging. Eyes ellip- 

 tical, oblique, not prominent. Antennas slender, slightly flattened, a little 

 longer than the head and the prothorax together. Prothorax finely 

 scabrous, hardly widening hindward ; keel hardly perceptible ; transverse 

 impressed lines very slight; fore border and hind part of each side slightly 

 rounded ; hind border more rounded. Prosternal spine slender, slightly 

 compressed and oblique, rounded at the tip. Legs long, slender; spines of 

 the hind libia3 short. Fore wings very narrow, as long as the body. 



3. STENACRIS CHLOHIZANS. 



Mas. Testaceo-viridis ; caput et prothorax alhido-mridi bivittata ; 

 antenna fulvee ; alee anticce diaphante, viridi venoste. 



