Diptera danica : genera and species of flies hitherto found in Denmark . ewhat doubtfully, recorded fromNorth America. Pipiza. 81 i2. P. quadrimaculata Panz. 1804. Panz. Fn. germ. LXXXV, 19 (Syrphus). — 1822. Meig. III, 249, 16. — 1843. Zett. Dipt. Scand. Il, 833, 10. — , K. V. och V. Samh. Goteborg Handl. VII, 65. — 1862. Schin. F. , 262. — 1901. Verr. Brit. Fl. VIII, 163 et 167, fig. 87. — 1907. åarkt. Dipt. III, 12. — Pipiza maculata 1859. Zett. Dipt. Scand. XIII,6028, 10. — Pipiza quadriguttata Macq. 1827. Soc. Sci. Lille, 178, 8. —1838. Meig. Syst. Beschr.
Diptera danica : genera and species of flies hitherto found in Denmark . ewhat doubtfully, recorded fromNorth America. Pipiza. 81 i2. P. quadrimaculata Panz. 1804. Panz. Fn. germ. LXXXV, 19 (Syrphus). — 1822. Meig. III, 249, 16. — 1843. Zett. Dipt. Scand. Il, 833, 10. — , K. V. och V. Samh. Goteborg Handl. VII, 65. — 1862. Schin. F. , 262. — 1901. Verr. Brit. Fl. VIII, 163 et 167, fig. 87. — 1907. åarkt. Dipt. III, 12. — Pipiza maculata 1859. Zett. Dipt. Scand. XIII,6028, 10. — Pipiza quadriguttata Macq. 1827. Soc. Sci. Lille, 178, 8. —1838. Meig. Syst. Beschr. VII, 119,34. — 1843. Zett. Dipt. Scand. Il, 833. Male. Vertex, frons and epistoma black, slightly pruinose, shiningand black-haired. Epistoma a little hollowed and rather low, theantennæ plaeed a little below the niiddle of the head. Occiput black,with black hairs, downwards and on the jowls yellow or æ quite short, second and third joint brown or brownish black,the third joint short, not so long as broad, the outer margin sloping. Fig. 27. Antenna of P. quadrimaculata c?, from the inside. X 80. downwards so that a lower outer angle is formed, but it is rounded;arista short, not so long as the antennæ, generally a little pale at theextreme base. Eyes dark-hairy. Thorax black or bluish black, shining,somewhat densely punctate; it is densely clothed with somewhat long,erect, black hairs, longest at the margin of scutellum. Pleura black-haired. Abdomen somewhat short and ovate, about the middle broaderthan thorax; it is black, somewhat shining and rather densely punc-tate; the second and third segments have each a pair of yellow oryellowish red, transverse, isolated spots. Abdomen is clothed withshort, black hairs, longer only at the sides of the first two segments;the genitalia with yellow hairs. Venter chiefly translucent, darkenedtowards the end, with pale hairs, only dark just at the apex andbelow the genitalia. Legs black, the tip of ant
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