JURINIA NIGRIVENTRIS. 81 



and Allograpto, hnt on account of the abdomen, which is 

 evidently broader than the thorax , it must remain in the 

 genus Syrphus. 



13. Jurinia nigriventris , u. sp. 



Cinerea ; capite pallido ; antennis sordide rufis , articulo 

 tertio nigricante; palpis rufis, in apice subdilatatis ; abdo- 

 mine nigro uitido ; pedibus nigris ; calyptris alisque dilute 

 brunneis. — Q long. 13 mm. 



Face perpendicular, almost conically projecting at the 

 oral margin and together with the cheeks and jaws of a 

 pale grayish yellow with brownish reflexion. On both sides J^'"^'^-'"'^'^^''^^ 

 one large bristle and some smaller ones are placed a little 

 above the mouth. Front cinereous , with a narrow ferru- 

 gineous band , which is somewhat dilated anteriorly ; the 

 frontal bristles not very numerous but strong ; occiput with 

 a rough yellowish pilosity and the usual crown of black 

 bristles Antennae sordid rufous ; the third joint ovate , 

 blackish at least on the fore-side and at the tip ; arista 

 black. Palpi ferrugineous , a little thickened near the end. 

 Thorax and scutellum with a dense cinereous dust; at the 

 anterior extremity of the thorax an indication of black stri- 

 pes; the bristles on the hind part of the thorax and at 

 the hind border of the scutellum strong and of conside- 

 rable length. Abdomen convex, black, shining, on the last 

 segment a lateral silvery spot , with a somewhat yellowish 

 reflexion; second segment without macrochetae ; at the mar- 

 gin of the third segment strong ones ; the last segment 

 with a dense black pilosity and numerous spines; venter 

 in the middle with numerous thick , rather blunt , spiny 

 bristles. Legs black ; the femora and especially the tibiae 

 with many long and strong bristles. Calyptrae and wings 

 grayish brown ; veins blackish ; discal vein curved with an 

 acute angle; discal cross-vein slightly undulated. 



A female specimen from Chili (Dohrn). My own col- 

 lection contains another , completely similar , from the Ar- 



Notes from the Leyden AXuBeum , Vol. W. 



