lorchus ; and the flat and lengthened clypeus is very hke that 

 of Stenostoma of Latreille. The G^demera? fly remarkably 

 well, and generally frequent flowers : they may be thus divided. 



* Posterior thighs incrassated in the males. 



1. CE. Podagrariae Linn. S. N. 2. 6V2. 9. mas. — simplex L. 

 S. N. 64-3. 10. f em.— Do7i. 10. 358. 2. 



The N. melanocephala of Panzer is referred to this species 

 by Gyllenhal, but it is a totally different insect which I have 

 taken at Fontainebleau ; it is much more like the female of the 

 next species in size and form. 



CE. Podagraricd has been taken from the 5th May to the 

 1st Aug. : it is attached to umbellate plants and derives its 

 name from the j^gopodium Podagraria, but it is also found 

 in houses being attracted by light in the evening. Mr. Dale 

 has taken specimens at the roots of apple-trees, and in cu- 

 cumber frames at Glanville's Wootton ; found also in Norfolk, 

 Suffolk, at Bideford, Ashburton, &c. Devon. 



2. CE. coerulea Li?in. F. S. 716.— Z)ow. 16. pi. 558.— Sam. 



pi. 2.JI 28. — clavipes Gt/l. — flavipes Oliv. ? — cerara- 

 boides Mars. 

 This handsome but common insect Mr. Dale has observed 

 from the 29th May to the 4th Aug. It frequents umbel- 

 liferous and syngenesious flowers and those of the bramble, 

 and is very extensively distributed. 



3. CE. marginata Fab. — femorata Panz. 36. 12. cJ . — subulata 



Oliv. ?. 

 It is recorded that Mr. Haworth possesses a British speci- 

 men of this or some kindred species. 



* * Posterior thighs simple in both sexes. 



4. CE. lurida Mar. 360. 6. Gyl. — Is found from the begin- 



ning of June to the middle of August, in most parts 

 of the kingdom in grassy places. 



5. CE. viridissima Li7ni. F. S. 717. — thalassina Fab.P — coe- 



rulescens Oliv. 3. n. 50. pi. 2./ 1 7 P 

 Found from May to the middle of June on flowers in Chalk- 

 pits, Kent, in White-thorn flowers in the New Forest, and at 

 Glanville's Wootton. I once took a considerable number out 

 of a decayed tree at Barham in Suffolk. 



6. CE. sanguinicollis Fab.— Curt. B. E. pi. 390. 



This handsome and distinct species is found in the blossoms 

 of the white-thorns in the New Forest ; near Bristol ; and in 

 Ireland. 



7. CE. melanura Linn. — Oliv. 3. n. 50. t. l.f. 8. — nigripes 



Fab. — acuta Mar. — Lepturoides Gyl. — notata Pk. 



Taken in June and July generally in the vicinity of timber 

 and frequently by the water side. It has occurred on the banks 

 of the Thames in London ; at Chatham ; in Norfolk ; on the 

 banks of the Humber near Hull; at Bristol; and in Oxfordshire. 



The Plant is Nardus stricta (Small Matweed.) 



