Eumerus. 537 



against his iarsalis with relatively large bristles, and because Verrall 

 had a specimen in which he could detect no bristles. How this may 

 be I think our species is the true sabulonum. Verrall says that on 

 the fronl tarsi the bristles are present only on the posterior side, but 

 I find the small bristles present on both sides. 



2. E. strigatus Fall. 



1817. Fall. Dipt. Suec. Syrph. 61, 8 (Pipiza). — 1843. Zett. Dipt. Scand. 

 II, 864, 3 et 1855. XII, 4674, 3. — 1901. Verr. Brit. Fl. VIII, 621, 3, fig. 

 424. — 1907. Kat. palåarkt. Dipt. III, 137. — E, aeneus Macq. 1827. Soc. 

 Se. Lille, 269,8 et 1834. Suit. å Buff. I. 528, 11. — 1838. Meig. Syst. 

 Beschr. VII, 112, 19. — E. grandicornis Meig. 1822. 1. c. III, 208, 8. — 

 1843. Zett. 1. c. II, 866, 6. — E.fmieralis Meig. 1822. 1. c. III, 208, 9. — 

 1843. Zett. 1. c. II, 867, 7. — E. flavifrons Meig. 1822. I. c. III, 209, 10. — 

 E.lunulatus Meig. 1822. 1. c. III, 209,11. — 1848. Loew, Stett. ent. Zeitg. 

 IX, 121,9. — 1862. Schin. F. A. I, 362. — E. Selene Loew (uec Meig.) 

 1840. Programm Posen, 28, 5 et Isis 1840. 561, 5. 



Male. Vertex long and rather broad, æneous; eyes actually touching 

 for a short distance, with slight, scattered, white hairs behind and 

 below; frons and epistoma grey pruinose, on the latter the æneous 

 ground colour may be slightly visible ; vertex with yeliow hairs, more 

 or less blackish across at the ocelli, sometimes only a few black; frons 

 with short epistoma with longer, dense, white hairs. Occiput whitish 

 pruinose below along the eye-margins to above the middle, æneous 

 above and rather puffed out ; the hairs whitish, above yeltowish, very 

 short on the middle. Antennæ rather large, third joint longer than 



Fig. 179. Antenna of E. strigatus d", from the inside, x 70, 



broad, with the lower apical corner pointed ; they are black but greyish 

 pruinose; arista somewhat long, inserted at some distance from the 

 base; the bristles below the apex of both basal antennal joints long. 

 Thorax æneous or brassy, punctate, somewhat shining; there are two 

 narrow, grey lines, abbreviated behind the middle; thorax is clothed 



