Dolichopodidae. 37 



on Bornholm at Allinge. My dates are "^/o to the first part of August, 

 It occurs on the same piaces as the preceding one. 



Geographical distribution: — Europe down into Spain; towards 

 the north to middle Sweden. 



± Neupigona Rond. 



Species of slender shape with a long, narrow abdomen; colour 

 not metallic, yellow, or thorax grey and abdomen yellow, and some- 

 times thorax grey in the male, yellow in the female. Head about as 

 broad as, or slightly broader than thorax, and sometiraes a little 

 higher than broad, at other times broader than high; the greatest 

 breadth hes above the middle; the head is short, almost flat behind; 

 vertex somewhat excavated, the ocellar tubercle prominent. Frons 

 broad, a little decreasing in breadth towards the antennæ. There 

 are ocellar, outer vertical and postvertical bristles, and on the ocellar 

 tubercle a pair of small or very small hairs. Eyes large, somewhat 

 oval, but narrowed downwards; they are very slightly, only micro- 

 scopically hairy, and in the living specimens they are brightly metallic 

 green; they are generally separated below the antennæ, sometimes 

 contiguous here in the male {Erichsoni). The facets in the male 

 shghtly enlarged towards the epistoma, most so when the eyes are 

 contiguous; they are also very slightly enlarged in the female. The 

 postocular bristles form a single row, besides there are some bristles 

 on the lower part of occiput. The antennæ are inserted somewhat 

 above the middle, near to each other; they are short, five-jointed, of 

 the same shape in both sexes; the basal joints are obconical, the 

 second very short, a little longer on the inside than on the outside; 



Fig. 9. Antenna of N. quadrifascata. From the inside 



the third joint also short, truncately triangular with a somewhat reni- 

 form base ; it is somewhat compressed, bearing a dorsal, two-jointed 

 arista, with a short basal joint; the first antennal joint has no hairs 

 above, the second joint has a circlet of small bristles at the apex, 

 longest above, the third joint is distinctly hairy, and the arista has 

 short hairs. Epistoma narrow, a little broader in the female, some- 

 times widening a little downwards; when the eyes are contiguous 

 below the antennæ the epistoma is only present above and below. 



