Pipiza. 81 



i2. P. quadrimaculata Panz. 



1804. Panz. Fn. germ. LXXXV, 19 (Syrphus). — 1822. Meig. Syst. 

 Beschr. III, 249, 16. — 1843. Zett. Dipt. Scand. Il, 833, 10. — 1860. 

 Malm, K. V. och V. Samh. Goteborg Handl. VII, 65. — 1862. Schin. F. A. 

 1, 262. — 1901. Verr. Brit. Fl. VIII, 163 et 167, fig. 87. — 1907. Kat. 

 palåarkt. 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, shining 

 and black-haired. Epistoma a little hollowed and rather low, the 

 antennæ plaeed a little below the niiddle of the head. Occiput black, 

 with black hairs, downwards and on the jowls yellow or brownish. 

 Antennæ 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 the 

 extreme 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 broader 

 than thorax; it is black, somewhat shining and rather densely punc- 

 tate; the second and third segments have each a pair of yellow or 

 yellowish red, transverse, isolated spots. Abdomen is clothed with 

 short, black hairs, longer only at the sides of the first two segments; 

 the genitalia with yellow hairs. Venter chiefly translucent, darkened 

 towards the end, with pale hairs, only dark just at the apex and 

 below the genitalia. Legs black, the tip of anterior femora and the 

 basal part of the tibiæ yellow, hind knees narrowly yellowish; tarsi 

 black or blackish brown, sometimes the middle or also the basal joints 



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