The Hemerobiadae are no less remarkable for their beautifully 

 reticulated wings and pedicled eggs, than for their singular 

 appearance and valuable qualities in the larva state, during 

 which period of their existence they live upon Aj^/iides {plant- 

 lice), and in conjunction with the larvae of the Coccmellce 

 (lady-birds); and some of the Syrphidae are of the utmost im- 

 portance to the hop-grower, by assisting to free him from one 

 of his greatest enemies. Our readers will be much gratified 

 by consulting the 3rd volume of Reaumur, who gives figures 

 of the larvae, &c. on the 32nd plate, and the 1st volume of 

 Kirby and Spence, where their extraordinary habits are 

 amusingly related. 



We have seen ten or twelve undescribed British species, 

 besides the following, which have been recorded by the authors 

 whose names are attached to them ; those which have been 

 noticed in the Entomologisf s Useful Compendium are preserved 

 in the British Museum. 



1. H. phalaenoides Linn. — Panz. 87. 15. The only indige- 



nous specimen I have seen of this fine insect, was 

 taken last June near I^anark, Scotland, by Mr. H. 

 Walker. 



2. Beckwithii Sam. — June to August, Woods, &c. 



3. variegatus Fab. — June, July, and August, upon grass 



and alders, Ambleside, Glanville's Wootton Dorset, 

 and the Ochill Hills near Stirling. 



4. obscurus Sain. — June to August. Hedges and Woods. 



5. fasciatus Fah. 



6. nervosus Fab. — June. Hedges and Woods. 



7. hirtus Linn.'— Don. 4. 113. — June and July upon the 



Hop and Hazel, Donovan observes, that like the 

 Hemerobius [Chrysojya) Perla, it is always very brisk 

 at the approach of a thunder-storm. 



8. irroratus Sam. — June. Hedges and Woods. 



9. affinis Sam. do. do. 



10. lutescens Fab. — DeG. 2. t. 22./! 8. — June, Aug., do. 



11. punctatus Tuy^t. do. do. 



12. nemoralis Sam. do. do. 



and Loch Rannoch, Perthshire. 



13. decussatus Sam. — June, Hedges and Woods, Amble- 



side ; m. Aug. Dover, and Glanville's Wootton. 



14. Pini Sam. — June, Aug. Hedges and Woods in va- 



rious parts of England, and Kinnoul and Dunkeld, 

 Perthshire, Scotland. 



15. fimbriatus l^ob. — The specimen figured was found 



July 1, 1825, on the grass, at Dundingston Loch, 

 near Edinburgh, by Mr. Dale ; and in the British 

 Museum is another, probably from the same spot. 



16. crispus Schccf. Icon. pi. 122. f. 2. & 3. 

 The plant is Betonica oJJicinaUs ( Wood Betony). 



