316 VARIETIES. 



(natural order Dijtisciles, including the well-known genera, 

 Dytiscus, Coli/mbetes, Acilius, Ili/dropurus,) in swimming, 

 moved both their hind legs simultaneously, striking out with 

 great vigour, in the same way as a frog ; whereas the hei'bi- 

 vorous beetles (natural order, HydrophiUtes ; genera, Hydrous^ 

 Hydroph'ilus, Helophorus, &c.), in swimming, moved their 

 hind legs alternately, thus making weaker strokes, and pro- 

 gressing in the water much more slowly. There is yet another 

 difference between the groups, which, however, I believe, has 

 been before observed ; it is, that the Dyliscites porrect their 

 antenna in swimming, and conceal their palpi ; the Hydro- 

 pJuUtes, on the contrary, porrect their palpi, and conceal their 

 antennae. Edward Newman. 



Dcp1ford,Jan. 20, 1833. 



37. Inquiry as to the collecting Apparatus. — Sir, It was 

 with great pleasure I became a subscriber to the " Entomolo- 

 logical Magazine," hoping to find in it some few instructions 

 and hints to young entomologists ; but meeting with disap- 

 pointment in this, I have written this letter, humbly requesting 

 you to devote one or two pages for the benefit of tyros in the 

 science. I shall feel much obliged by your informing me 

 where, in London, all apparatus necessary for collecting may 

 be purchased, and what particular nets, &c. you recommend, 

 with any hints you may think useful, either for collecting or 

 preserving insects. 



I remain. Sir, your respectful subscriber, J. D. 

 Dartmouth, Jan. 1833. 



[We intended to do this, but our correspondent must 

 observe how very little editorial matter we are able to publish, 

 owing to the press of more important communications. We 

 obtain our own nets, &c. of Mr. Bew, 19, Newgate Street ; 

 we are not aware of any other maker. J. D. will find ample 

 directions for collecting in Messrs. Kirby and Spence's " In- 

 troduction to Entomology," to which we beg to refer him for 

 the present. — Ed.] 



38. Insects captured at Bridyend, Glamorganshire. — Sir, I 

 have to request that you will put my name down as a sub- 

 scriber to your excellent and long wished for Magazine. At 

 the same time I have embraced the opportunity of sending you 



