Empididae. 93 



veins black or brown. Stigma slightly yellowish, more or less faint. 

 Squamulæ with long hairs at the margin. Balteres yellow. 



Female. Agreeing witli the male; the ovipositor long, black; the 

 eighth ventral segment with a long, thin style. 



Length 6,5 — 8,5 mm. 



The pupa is yellowish white, the length about 6 mm. ; the upper 

 of the tubercles on the front side of the head are very small, the 

 lower large, knob-shaped but with a very distinct edge below. 



This species is somewhat similar to univittata and also nearly 

 related to that species, but it is distinguished at once by the shining 

 thorax with the stripe much narrower and by the black prothoracic 

 spiracles. 



E.stercorea is a common species in Denmark; neighbourhood of 

 Copenhagen, Lersøen, Dyrehaven, Bøllemosen, Ørhoim, Geel Skov, 

 Hillerød, Tyvekrogen, Tisvilde; on Funen at Strib; on Langeland at 

 Lohals and in Jutland at Ristrup near Aarhus, at Sminge, Funder 

 and Juul Sø near Silkeborg and at Frederikshavn, finally on Born- 

 holm at Hasle. My dates are ^k—^^h. It occurs on shaded piaces 

 in woods and in fens and similar localities, often at the border of 

 water, and it is found on low piants, often Umbelliferæ. I once took 

 it with a small Tipulid as prey. The pupa was taken in Geel Skov 

 in a decaying stub of a fir on '"jh, it developed soon after. 



Geographical distribution : — Northern and middle Europe down 

 into France; towards the north to northern Scandinavia, and in Fin- 

 land; it seems thus to go farther towards the north than univittata. 



5. E. trigramma Meig. 



1822. Meig. Syst. Besclir. III, 38, 42. — 1842. Zett. Dipt. Scand. I, 

 379, 12 and 1849. VIII, 3025, 12 and 1855. XII, 4610, 12. — 1862. 

 Schin. F. A. 1, 108. — 1867. Loew, Berl. ent, Zeitschr. XI, 17 et 21, 8 

 — 1903. Kat. palåarkt. Dipt. II, 245. 



Male. Eyes broadly separated, frons yellow, with a longitudinal, 

 impressed middle point; epistoma and jowls yellow. Occiput yellow. 



Fig. 30. Antenna of E. trigramma. x 55. 



but with a large, dark grey spot above which leaves only the posterior 

 eye-margins yellow, and with some longish, black bristles. Labrum 

 ferruginous ; palpi yellow, with long, dark hairs at the apex. Antennæ 



