Allophora. 97 



to the author even these males may sometimes occur much more 

 numerous than the normal form. 



A. obesa is rather rare in Denmark; Dyrehaven, Lundtofte, 

 Hareskov, at Fure Sø, Ruderhegn, Smidstrup, Gilleleje, on Falster 

 and in Jutland at Albøg near Grenaa and at Sæby; the dates are 

 ^^/e — ^/lo- Our specimens belong nearly all to var. jascipennis or 

 var. nehulosa^ only one (from Albøg) is umbripennis; clear-winged 

 female-like males I have not seen. 



Geographical distribution: — Europe; towards the north to 

 northern Sweden, and in Finland. 



3. A. subcoleoptrata Linn. 



1767. Linn. Syst. Nat. XII, 2, 1006, 13 (Conops). — 1805. Fabr. Syst. 

 Antl. 217, 1 {Thereva). — 1820. Fall. Dipt. Suec. Ehizom. 2, 1 (Thereva). — 

 1824. Meig. Syst. Beschr. IV, 190, 7, Tab. XXXIX, Fig. 13 {Phasia) et 1838. 

 VII, 284, 2. — 1844. Zett. Dipt. Scand. III, 1245, 1 (Phasia). — 1862. Schin. 

 F. A. I, 403. — 1888. Girsch. Zeitschr. f. Naturwiss. LX, 40, 7, Tab. II, 

 Fig. 16—21. — 1907. Kat. palåarkt. Dipt. III, 584. — 1924. Stein, Arch. f. 

 Naturgesch. 90, 6, 259, 6. 



Male. Head nearly double as broad as high and mainly shaped 

 as in hemiptera, only less broad. Orbits yellowish, cheeks paler and 

 jowls whitish grey; frontal stripe brownish yellow, widening down- 

 wards, with a narrow black middle line. Frontal bristles fme. Vibrissæ 

 less ascending than in hemiptera. Orbits bare; jowls white-haired. 

 Occiput grey with white hairs. Antennæ black, third joint almost 

 not longer than second; arista short, thickened in nearly basal half, 

 apparently bare. Palpi brownish yellow. Thorax brownish black, 

 brownish yellow, almost golden pruinose, with four about equal 

 blackish stripes, vanishing behind. Scutellum blackish. Thorax 

 black-haired; pleura with the vertical row of bristles black, for the 

 rest with yellow hairs. One sternopleural bristle. Abdomen black 

 with a little bluish or violet shine, at apex a yellow or golden pruinose 

 spot; abdomen is black-haired, on the ventral side yellow-haired. Legs 

 black; claws and pulvilh strongly elongated; the legs black-haired; 

 a ventral bristle on middle tibiæ. Wings very broad, nearly triangular 

 with anterior margin convex; they are extensively brown, this colour 

 present as a longitudinal band on basal half at front margin and 

 another band over discai and most of second posterior cell, bending 

 upwards along apical margin, the wings thus mainly as in var. vittata 

 of hemiptera; subcostal vein ending above medial cross-vein; first 



