ENTOMOLOGY. 2 59 



change to the pupa state took place about the 25th. of August, and during 

 the first week of September the perfect state was acquired. The history of 

 Halictus, therefore, is as follows: — The males and females appear in the autumn; 

 the latter being impregnated pass the winter in the perfect state, appearing 

 during the following season to perform their economy, as detailed above in the 

 case of H morio. This is the result of my present observations, and I believe 

 it to be the true history of Halictus as well as of Sphecodes. Humble Bees 

 and Wasps pass the winter months in a torpid state, having been impregnated 

 during the previous autumn, but amongst solitary bees I know no other genera 

 besides Halictus and Sphecodes which resemble them in this respect. 



Suffolk Lepidoptera. — I have only just seen the "List of Lepidoptera," by 

 Messrs. Greene, Crewe, and Bree, in "The Naturalist" from November last 

 to the present time. As I at one time collected in that county, they may, 

 perhaps, be glad to hear what rare insects I met with in that part of 

 Suffolk in which I resided. In 1851 I took seven or eight specimens of 

 both species of Colias; they were taken in the parishes of Shelley and 

 Stoke-by-Nayland, and their vicinity. I have not, since that year, seen a 

 single specimen of either. In the same and preceding year I took three or 

 four specimens of Sinapis in Baydon Wood, where, I have been told, the late 

 Mr. John Hoy once took the larvse abundantly. I once saw Sibilla in a 

 wood near Stoke-by-Nayland. Iris is tolerably abundant in Baydon Wood; 

 I once got eight larva) in one day there. I was told Mr. Hoy once obtained 

 thirteen after a very hard day's work. Gardui was so abundant in 1851 that 

 I took a gross, and could have taken ten times as many. What is very 

 remarkable as to these insects is the fact, that in the spring of that year, 

 a good many apparently hybernated specimens appeared, (much faded.) Now 

 as I had carefully collected in the locality for the two preceding years, and 

 never saw a specimen, it is difficult to understand where the hybernated ones 

 came from. JPaphia is very common, but I never saw Adippe in any of our 

 Suffolk woods. Lathonia, according to Miss Jermyn, has been taken at 

 Stoke-by-Nayland, — where, too, I know Antiopa occurred a few years ago, — 

 but I had several unsuccessful trips to the place she indicated as the precise 

 spot. Mr. Stainton also speaks of Lathonia having occurred at Lavenham, 

 which is in Suffolk. I do not believe Athalia is taken in Suffolk; it is 

 abundant, however, in a wood within two miles of Suffolk, namely, at Langham 

 Leap, where I have taken it, as well as Adippe, in profusion. Lucina is by 

 no means rare at Baydon; I got a very fine series of it there in 1850. I 

 have only once met with Betulce, and that not at Baydon, where it is said 

 to be found, but on a hedge at Langham, a mile at least from any wood; 

 it was a female much wasted. I have taken all the Hairstreaks indeed, 

 except Pruni. I have never seen Argiolus, but Corydon I have taken in 

 boundless profusion just on the borders of Cambridgeshire, but in Suffolk. 

 Agestis is certainly not an uncommon insect in the neighbourhood of Stoke- 

 by-Nayland. Alveolus and Tages are common enough at Baydon, but I 



