108 [Ap'ii, 



of the dissiaiilarity of the sexes. Walker, in his work on British 

 Diptera, gives ten species of Phdypeza, and five of Gallomijia. I 

 possess six of the former, and four of the latter. They frequent 

 shady places. 



Plattpeza eufa, Meig. — First taken by my father at Bonchurcli, in the lalo 

 of Wight, October 16th, 1866. Since, at Glanville's Wootton, by myself, but by no 

 means commonly. It is a truly autumnal species, ranging from September 12tli to 

 October 16th. Zetterstedt records it in Scandinavia from September lOtli to 

 October 4tli. I first recorded it as British in the " History of Glanrille's Wootton," 

 1878, and am very glad to have had the determination recently confirmed by Mr. 

 Verrall. It can be easily distinguished from any other British species of the geinis 

 by the wings of the $ being dark, and of the $ light. Its nearest relative is 

 P. modest a. 



P. MODESTA, Zett. — This was first recorded as British by myself, in 1878, in the 

 " History of Glanville's Wootton," and the determination has been recently con- 

 firmed by Mr. Verrall. It was taken at Bonchurcli, Isle of Wight, by my father, on 

 October 16th, 1866, and has since been found at Glanville's Wootton. It is by far 

 the most common species of the family, and I have met with it from September 24th 

 to November 7th. Zetterstedt gives it as occurring in Scandinavia and Denmark 

 during October. The wings of the $ are dark, and of the $ light, much resembling 

 some of the species of the old genus Anthomyia. Zetterstedt's description of it is 

 as follows : — " P. modesta : atra, thoi'ace anoque obscure cinereis, illo vittis 4 nigris 

 ( (? ) ; aut cinerea, thoracis lineolis 3 brunneis, et abdominis fasciis 4 subtriangulariter 

 nigris (?) ; antennis nigris, basi testaceis ; alis subfumatis {$), aut hyalinis (? ) ; 

 nervulo transverse antico ante apicem auxiliari sito ; area angulari valde contracta ; 

 halteribus ventre pedibusque fusco-testaceis ((?), aut flavescentibus (?). c? ? , 

 Long., I5, li lin." 



P. INFTJMATA, Hal. — Next to modesta, this is the commonest species. It occurs 

 from September 7th to November 2nd. 



P. PICTA, Meig. — This appears to be a very rare species. I have a 9 taken by 

 my father at G-lanville's Wootton, October 22nd, 1846 ; another ? taken by myself, 

 October ] 1th, 1880; and four <J , taken September 27th, 1876, and October 11th, 

 1880. It is the largest species : long., 2 — 3 lin. ; esp., 4—6 lin. 



P. ATERiiiMA, Walk. — This is also a scarce species. I took a specimen at 

 Hastings, October, 1871 ; and one here, January 28th, 1880. 



P. BOLETiNA, Fall. — This is the smallest species. It is not so autumnal as the 

 rest of the genus. I have taken it from June 28th to September 24th, but never in 

 October. It somewhat resembles picta, but is only half the size. The $ has wings 

 not so dark as in the other species. 



Calxojitia elegans, F. — Of this pretty insect I possess three specimens, viz. : 

 a $ , taken by my father at Glanville's Wootton, July 15th, 1862 ; a ,^ , by myself, 

 on July 2nd, 1888 ; and a ? , June 27th, 1875. 



C. SPECIOSA, Meig. — Of this I possess three ^ specimens, viz. : one taken by 

 my father, June 6th, 1861 ; and two by myself, May 28th, 1873, and July 17tli, 

 1873 ; all at Glanville's Woottou. 



