There are fifty described species of this extensive genus in- 

 habiting Great Britain which are recorded in the " Guide," 

 and I have nearly tvi^enty more in my ovi^n Cabinet which I 

 cannot identify with any of Gravenhorst's. It is therefore im- 

 possible to do more here than to give his sections with an En- 

 glish type of each, referring to the Guide for a complete list 

 of the species. 



J . Scutellum and abdomen black, 

 21. moschator Fab. — Grav. 2. 451. 21. 



2. Scutellum pale, abdomen blacJc. 

 40. viduatorius Fab. — Grav. 2. 476. 40. 



3. Scutellum pale, abdomen 'with pale rings. 



No specimen has yet been discovered in Britain of this sec- 

 tion. 



4. Scutellum with a pale spot ; abdomen rufous or red and blacJc. 

 82. albatorius Vill. — Grav. 2. 536. 82. 



5. Scutellum black ; abdomen red or red and black. 

 91. obscurus Gmel. — Grav. 2. 548. 91. 



6. Scutellum and thorax partly rufous ,• abdomen red and black, 

 136. minutorius Fab.— Grav. 2. 625. 136. 



7. Scutellum white, thorax red, abdomen black. 



144^. bellosus Curt. Brit. Ent.pl. 668. ? . The (J is unknown. 



Two females of this beautiful insect I bred the end of last 

 June from some dead bramble stalks that were given to me by 

 Mr. F. Smith, with the expectation of obtaining from them the 

 Osmia leucomelana, not one of which however made its appear- 

 ance, but to my surprise and gratification these Crypti, and a 

 few days after some females of Odi/7ierus [Epipone) Icevipes, 

 described by Mr. Shuckard in Loudon's Magazine of Nat. 

 Hist, issued from the sticks. The Crypti were exceedingly vi- 

 vacious, not a joint of their antenna? or legs, or a segment of 

 their abdomen being at rest, and they resisted the fumes of 

 sulphur under a glass longer than any other insect that has 

 come under my observation, whilst, on the contrary, the Ody- 

 neri were very sluggish, not attempting to unfold their wings, 

 and were easily deprived of life. 



For specimens of Valeriana [Fedia) auricida, gathered near 

 Cowes in the Isle of Wiofht, I am intlebted to Dr. Bromfield. 



