DIPTERA. 267 



6. Eristalis arbustorura, Fab. Common. 



7. E. horticola, DeGeer. Abundant. 



8. E. intricarius, Linn. Common on flowers, July 



and August. 



9. E. florens, Linn. Occasionally common on flowers, 



August and September. 



10. E. sepulchralis, Linn. Rare. Taken by myself 

 on Whitedown, July 7th, 1877. 



1. Helophilus trivittatus, Fab. Very rare. Taken 



by myself, July, 1863, and August 10th, 1877, 

 on Whitedown. 



2. H. pendulus, Linn. Abundant. 



I. Syritta pipiens, Linn. Abundant. 



1. Xylota sylvarum, Linn. Common. 



2. X. segnis, Linn. Abundant. 



3. X. lenta, Meig. Very rare. Taken by my father 



in Wootton Wood, June 12th, 1870, and June 

 llth, 1871 ; also by my brother in Pelles, May 

 12th, 1865, and in Wootton Wood, June 20th, 

 1877. 



4. X. abiens, Meig. Very rare. Taken by my father 



in Wootton Wood, August 2nd, 1869 ; also by 

 myself in Wootton Wood, May 30th, 1871, and 

 June 23rd, 1875. 



I. Spilomyia femorata, Linn. Rare. Taken by my 

 father in the garden, June 4th, 1840, and May 

 28th, 1870; also by myself in Sandhill's Copse, 

 May 30th, 1867, and in Wootton Wood, June 

 10th, 1876. 



