ENTOMOLOGY. 93 



common with many of the Diptera, the heat of a summer's sun. It has on 

 one or two occasions been taken off the early blossoms of the ivy. 



T. luridus. — Hare. It has occurred near Ashcombe, near Lewes, and at Firle, 

 in the autumnal months. 



T. rusticus. — May be considered rare in this district, having been taken 

 only on one or two occasions. In some of the other counties it is reported 

 as being one of the most common species inhabiting this country. 



Hcernatopota pluvialis. — This insect occurs in plenty generally, and more 

 particularly in the Weald of Sussex, on the forest district of Tilgate and 

 Ashdown, in July and August. It is very troublesome, and is most persevering 

 in its attacks. 



Chrysops ccecutiens.- — Not by any means common, although it has frequently 

 been taken in the Lewes Levels, in July and August, settling on cattle when 

 grazing. 



C. relictus. — Scarce. Once taken at Firle, and near Lewes in July. This 

 insect does not appear to be so common in England as the preceding species, 

 but it is said to be common in the north of France. 



ASILLD2E.— Leach. 



Asilus forcipatus. — Not uncommon. Has been found at the foot of the 

 Downs near Lewes, and also near Eottingdean. 



A. aestivus. — Hare. The borders of corn-fields in Oxsettle Bottom, near 

 Mount Caburn, on Utnbelliferce, in June. 



A. crabroniformis. — This very fine and handsome species occurs more 

 frequently than either of the others, and generally is met with on the Downs, 

 and mostly in pairs in the month of August. It is a strong and powerful 

 insect. 



Dioctria flavipes. — Of frequent occurrence on Umbelliferce on sunny banks 

 in the neighbourhood of Lewes, in June and July. 



Leptogaster cylindricus. — Occasionally taken in this district, but not common. 



{To be continued.) 



In the last number of "The Naturalist," Mr. Morris makes a few remarks 

 on my method of setting Lepidoptera. He objects, in the first instance, to 

 the sizes of the pins which I recommend. This must ever be a matter of 

 taste with each individual collector, and Mr. Morris is, of course, at perfect 

 liberty to use the sizes he prefers himself, but when he recommends to 

 his readers the total abandonment of Nos. 11 and 12, and the adoption in 

 their place of No. 13 only, I would ask him whether he possesses such insects 

 as A. atropos, S. ligustri, S. convolvuli, etc. In my specimens of these species, 

 the head of a No. 13 pin would disappear in the thorax. I cannot but think 

 that Mr. Morris stands alone in recommending such a size only. He complains, 

 secondly, that I have omitted to state, for the benefit of beginners, the proper 

 depth of the boards. I should have thought Fig. 3 would have explained this 

 knotty point with sufficient clearness for the comprehension even of a child. 



