OCYPTERA. 1) 



prabracldalis cubUali ante apicem conjunda. Abdomen cylindricum, 



arcuatmii, siibtus recurvtim. 



Body narrow, linear. Palpi very short. Fourth and fifth joints of 

 the autennse distinct ; sixth bare. Trabracldal vein united to the cubital 

 at some distance from the tip of the latter. Abdomen cylindrical, arched, 

 recurved beneath at the tip ; first segment long. 



a. Third joint of the antennae twice the length of the second. Sp. 1. 

 a a. Third joint of the antennre less than twice the length of the second. 

 Species 2. 



1. brassicaria, F. S. I. 11. 443. 36 (1781) ; Gmel. ; Latr. ; Fal. ; 

 Meig-. ; Mcq.; Desv. ; Curt. ! B.E, 629 ; Loew; ZQii.—cylindrica, D. G. 

 — segnis, Pz. ; Schell. ; Scha;iF. Nigra, capite argenteo, thorace cano 

 nigTO-quadrivittato, alis cinereis dimidio antico hasali Jlavescente, abdo- 

 mine rufo vitta interrwpta dorsali apiceque nigris. Long. 5 ; alar. 8 lin. 



Black. Head silvery-white. Frontalia deep black, slightly widen- 

 ing at each end. Epistoma pale yellow. Autennse reaching the epi- 

 stoma ; third joint almost fusiform ; sixth very stout towards the base, 

 near thrice the length of the fourth and fifth. Thorax hoary, with 

 four slender black stripes on the fore part. Wings grey, yellowish along 

 half the length beneath the costa ; prfebrachial vein forming at its flexure 

 a well-defined hardly obtuse angle, which emits a very short appendage, 

 beyond this it is undulating, and joins the cubital vein at some distance 

 fi'om the tip of the latter. Alulae white. Abdomen red, with a tvidely 

 interrupted black stripe, which is dilated and triangular at the base ; third 

 and following segments black. 



Eare. (E.) 



2. cylindrica, F. S. A. 318. 2 (1805) ; Meig. ; Mcq. ; Desv. ; 

 Winnertz ; Loew ; Zett. Nigra, capite argenteo, thoracis lateribus 

 anticis canis, alis cinereis antice subfuscis, abdomine segmentorum secundi 

 et tertii lateribus rufs. Long. 3-3| ; alar. 5-6 lin. 



Black, shining. Head silvery-white. Frontalia deep black. An- 

 tennae almost reaching the epistoma ; third joint fusiform. Thorax 

 hoary on each side in front. Wings grey, brownish along the fore 

 border ; pra^brachial vein forming an obtuse angle, and emitting a very 

 short branch at its flexure, near which it is very slightly curved inward, 

 but has a more distinct outward curve near its junction with the cubital. 

 Alula? white. Second and third abdominal segments red, hind border of 

 the latter and a dorsal stripe black. 



Rare. In the collections of Mr. Desvignes and of the late Mr. 

 Stephens. (E.) 



VOL. II. 



