4 



By the structure of the mouth, the form of the antennae, and 

 the neuration of the wings, this remarkable genus is evidently 

 allied to the Syrphidae, but in what way it is related to the 

 Dolichopidae I cannot determine, for the incurved apex of the 

 abdomen is indicative of the female sex in Pipunculus, whilst 

 in the former family it characterizes the males. The mouth, 

 like that of Platypeza, is very imperfect, and the 3rd joint of 

 the antennse varies considerably; the pulvilli are largest in the 

 females, and the wings are longer and frequently obscure in 

 the males, as remarked by Mr. Haliday. The following is 

 Mr. Walker's arrangement of the genus. 



* ^th longitudinal nervure simple. 

 f Abdomen cylindric, base a little narrowed. 



Wings immaculate, or with the stigma not coloured. 



1. maculatus Walk. Ent. Mag. 2. 261<. 1. 

 July, furze and heath near London. 



2. sylvaticus Meig. v. 4. p. 20. No. 3. 



June, Lowestoft, New Forest ; July, on grass beneath trees. 



3. geniculatus Meig. — Panz. 108. 17? 



May, grass beneath trees ; August, Lulworth. 



Xt Stigmatic space coloured. 



4. flavipes Meig. fab. 33. Jl 21. October, grass beneath trees. 



5. fulvipes Macq. 2. 11. 9. 6. varipes Meig. 



7. pratorum Fall. — Curt. Brit. Ent. pi. 751. cJ. 



I took the male figured the 7th May in Coomb Wood. 



8. campestris Lat. May, June, and July, Coomb Wood, 

 Windsor, New Forest, and Clifton : 7th September, flying 

 about laurels and young beech-trees at Durnford near Sa- 

 lisbury. 



9. dentipes Meig. 7. 146. 15. — ater Meig.? June, Oxford 

 and Glanville's Wootton. 



f f Abdomen Jlat. Wings immaculate. 



10. modestus Hal. Ent. Mag. 1. 162. 



May and June, on grass beneath trees, Kent, and Coomb 

 Wood. 



11. ruralis Meig. May — July, Coomb Wood, Windsor, New 

 Forest, and Horning, Norfolk. 



** 4M longitudinal nervure emitting a branch. Jig. 9. 



1 2. auctus Eall. May — July, Birchwood, Windsor and New 

 Lanark. 



Asperugo procumbens, Trailing Catchweed, was gathered 

 between Purfleet and West Thurrock, and communicated by 

 Mr. Branch and Mr. Kippist. 



