434 VARIETIES. 



name, but it appeared of very great length and harshness) ; 

 he then dwelt on the propriety of naming insects after persons 

 who have captured them, by adding the letter i to the surname 

 of the captor; he particularly instanced Waterhouse-i, which 

 he thought a very excellent name, and much better than Aqua- 

 domi, which would be the Latin of Mr. Waterhouse's name ; 

 he, however, suggested that such names should be pronounced 

 Waterhous-e-i, Ho-pe-i, Davi-si-i, the nominatives being 

 Walerhous-eus, Ho-p&us, and Daci-sius. 



The Secretary read a letter from Dr. Haslar, of Phila- 

 delphia, relative to Cicada Septendeceni, an insect which 

 abounds in North America. Dr. Haslar states that, in the 

 larva state, these insects live in the earth ; on appearing above- 

 ground, they are devoured with avidity by poultry, and those 

 hens which had eaten a great number of them usually laid 

 eggs with colourless yolks. Specimens of the insect, in the 

 imago state, were exhibited, as well as some of the pupae about 

 to change. 



[The attendance of members at these sittings has greatly 

 decreased; at the July sitting, about twenty members were 

 present ; at the August sitting, about fifteen ; at the September 

 sitting, about twelve.] 



Art. XXXIX. — Varieties. 



36. Capture of Lepidoptera at Great Yarmouth. — 

 Sir, Should you have any room, it may be interesting to 

 record the capture of three very rare insects at this place, 

 two of which have never been observed here before. They 

 were all taken during this present month ; namely, one speci- 

 men of Vanessa Antiopa, which was captured by a boy, in a 

 garden in the town, on the 26th inst. A single specimen of 

 Argynnis Lathonia was caught on the 2d, near Caistor-rails, 

 about a mile from this town: it adjoins Caistor-marrams, 

 which, I am told, is very similar to the Castle-meadow, Dover, 

 as to soil and vegetation. The other insect is Deilephila 

 Gain, of which only one instance occurred till this month, 

 when it has been observed rather common : one was caught on 

 the 3d, two on the 9th, and one on the 29th ; besides which 

 five or six more were seen, but so shy that they escaped : with 



