1. PACHYGASTER 79 



he stated later on (1. c, 1876, p. 180) in rotten wood taken from the 

 hollow in an old oak, and again (1. c, p. 193) he said that he bred two speci- 

 mens from old turnip stems? (" pieds de navet en fructification"). I have 

 records from Cornwall (Scilly Isles, Penzance and St Ives), Somerset (near 

 Wincanton), Devonshire (Torcross and Leach's original discovery), Dorset 

 (Glanville's Wootton and Warehani), Sussex (Three Bridges), Cambridge- 

 shire (Cambridge, Chippenham Fen), Suffolk (Farnham), Gloucestershire 

 (Mr C. J. Wainwright), Herefordshire (Tarrington), and Glamorgan 

 (Porthcawl), from June 21 to August 12, so that at present the records are 

 almost restricted to the southern half of England. Abroad it is recorded 

 from Scandinavia, France, Belgium, Switzerland, Austria, and Hungary. 



Sj/nonyint/. — No doubt can ai'ise concerning Cui'tis's original description and 

 figure, but Walker introduced an unfortunate complication in lii.s Insecta Britannica 

 Diptera by twice referring to the dark niarkuig on the hind " tibiffi " when he meant 

 the hind "femora," and strange to say Jaennicke in Berl. Ent. Zeitschr., x., p. 221, 

 .say.s, " Die Hinterscliienen sind vor der Spitze breit braun geringelt," wliicli Loew 

 incorrectly quoted as " schwarz geringelt." Walker also incorrectly described the 

 halteres as pale yellow, a character which could only apply to P. orbitalis. 

 ]\bicquart's ]'. paUipeniiis is an obvious synonym. It is worthy of note that in 

 Curtis's original edition (1824) of British Entomology, tigs. 2, 3, being the liead and 

 antennge, are apparently drawn from 7'. Leacliii, but in the re])rint (issued in 1862) a 

 fresh drawing has been made for fig. 3, which lias proliably been made from P, atra. 



