52 Pipunculidae. 



fourth segment in the female, similar to those in maculatus^ have not 

 hitherto been mentioned, neither they are always present, and only 

 Thomson has known the female, for the female mentioned by Becker 

 certainly does not belong here, as my females have the costal seg- 

 ments as in the male i. e. the fourth three or four times as long as the 

 third and much shorter than the fifth. 



21. P. maculatus Walk. 



1834. Walk. Entom. Mag. II, 264, 1 et 1851. Ins. Brit. Dipt. I, 232, 1. 

 — 1901. Verr. Brit. FUes VIII, 119, 24. — 1910. Kertész, Cat. Dipt. VII, 

 376 {Dorylas). - 1921. Beck. Wien. Ent. Zeitg. XXXVIII, 162, 163. - P. ful- 

 vipes Macq. 1834. Eecueil Soc. Se. Agi\ Lille, 355, 5 et 1834. Suit. å BufE. II, 



II, 9, o^ - 1838. Meig. Svst. Beschr. VII, 147, 18. - 1844. Zett. Dipt. Scand. 



III, 960, 14 et 1859. XIII, 6059, 14. - 1869. Thoms. Opusc. Entom. II, 112, 

 7. — P. lateralis Macq. 1834. 1. c. 355, 4 et 1834. 1. c. II, 11, 8, ?. — 1838. 

 Meig. 1. c. VII, 147, 17. — 1897. Beck. Berl. Entom. Zeitschr. XLII, 87, 46 

 et 1900. XLV, 240, 46. — P. ammUpes Zett. 1838. Ins. Lapp. 580, 7, p. p. 



Male. Eyes touching, vertex black, shining, frons and epistoma 

 silvery, the former narrow. Occiput grey, black and shining above. 

 Antennæ with the third joint yellow, white pruinose, somewhat long 

 and pointed but not really rostrate. Thorax black, shining, a little 

 brownish pruinose, humeral knob yellowish; the disc very sparingly 

 with fine hairs, only as dorsocentral rows and behind the humeri, 

 the hairs at the margin of scutellum not longer. Pleura and post- 

 scutellum greyish. Abdomen black and shining, first segment grey; 

 at the sides or lateral hind margins of third and fourth segment there 

 are sometimes indefinite, yellowish spots, often very slight or quite 

 wanting. Abdomen is quite slightly pruinose from a very short greyish 

 pubescence, most distinct on fifth segment, and it has sparse, fine, 

 longer hairs, on the sides of first segment a conspicuous fan of long, 

 yellow hairs. Hypopygium not large, greyish pruinose, with a small 

 oval or roundish oval apical impression; the end claws reddish at 

 apex. Legs all yellow, only coxæ except their apex black, front femora 

 with a small brown spot above at base and tarsi slightly darkened 

 towards the end; the femora dull; the legs haired as usual, hind tibiæ 

 with a longer hair in the middle on the anterior side; only middle 

 femora with a double row of small spinules below the apical half. 

 Wings slightly brownish, stigma absent, but just the apex of the 

 mediastinal cell is obscured, third costal segment one third or one 

 quarter of the fourth, the fourth somewhat shorter than the fifth, 



