1897.] 223 



again they were all hatched out before I saw them. One thing is certain, that is, 

 they pass all their stages in the course of the year, as there were no pools at the 

 place previous to 1893." 



" The situation is damp, and the pits, though filled with stagnant water, never 

 become putrid or offensive." 



" The breathing apparatus of the larvfe was much longer than in some of the 

 rat-tailed maggots I have seen. The tail of the pupa case Cwhich is full half an inch 

 long) is only about a quarter the length of the larval tail. Can you tell me if they 

 have been bred before ? " 



Perhaps some of your readers can answer this latter question. I 

 may add that Mr. Sim sent the three pupa cases and three specimens 

 bred from them to Mr. Watkins, who has kindly forwarded one for 

 my inspection. » 



Guestling Rectory : 



August, 1897. 



DESCRIPTION OF A NEW DIPTERON OP THE GENUS PHOROCEEA 

 INHABITING BRITAIN. 



BY R. H. MEADE, E.R.C.S. 



Fam., TaeliiniidoB. Gen., Phorocera, R. Dsv. 



Sub-gen , CampylochcBta, End., Br. et Brgm. 



P. INCEETA, sp. n. 



(? $ . Ohlonga suhcylindrica cinerea ; frons suhprominens ; frontalia 

 ampla, vitta lata nigra ; genes hirsutce ; antenncB articulo tertio crasso ; arista 

 incurva, segmento secundo parum elonguto ; palpi nigri; thorax suhstriatus ; 

 abdomen fasciis transversis nigris sublutiatis striatus ; alee venis transversis 

 apicalibus flexis, et fere in apice alarum excurrentibus ; pedes tibiis omnibus 

 extra, longe setosis. Long., 6 mm. 



Forehead rather prominent ; face a little oblique ; eyes hairy, widely separated 

 in both sexes but rather nearer together in the male than in the female ; frontal 

 stripe black, and twice as wide as the sides of the frontalia, which, together with the 

 face, are white and somewhat glistening ; cheeks ciliated with fine hairs ; facial setje 

 long, placed rather wide apart, and not many in number, but extending upwards to 

 near the end of the frontal bristles ; antennae black with the third joint thick and 

 about three times the length of the second ; arista rather short and bent, thickened 

 for two-thirds of its length, and having the second joint a little elongated (especially 

 in the male) ; palpi small and black ; vibrissae large ; thorax whitish-grey with four 

 rather indistinct stripes, the central pair being short and narrow ; dorso-central 

 bristles three behind the suture ; scutellum grey and immaculate ; scales of calyptra 

 large and white ; halteres yellow ; abdomen conico-cylindrical in both sexes, grey 

 with the first segment nearly black, and the three following ones marked with black 

 interrupted transverse bands or marks on their hinder edges, which assume a some- 



