ENTOMOLOGICAL CABINET. 



within the influence of the sun, just under a little 

 heap of fresh mould, like that which is raised by 

 ants." 



At the approach of winter, the mole crickets re- 

 move their nest to so great a depth in the earth as 

 to have it always lower than the frost can penetrate. 

 When the mild season comes on, they raise it in 

 proportion to the advance of that favourable time, and 

 at last elevate it so near the surface as to render it 

 susceptible both of air and sunshine ; and if the 

 frost returns, they again sink it to its proper depth. 



Mr. Kirby, in his letter on luminous insects, gives 

 the following curious fact: "A learned friend, the 

 Rev. Dr. Sutton, of Norwich, has informed me, that 

 when he was curate of Inckleton, Cambridgeshire, 

 in 1780, a farmer of that place, of the name of Sim- 

 pringham, brought to him a mole cricket (Grytto- 

 talpi vulgaris, Latr.), and told him that one of his 

 people seeing ajack-o' 'lantern pursued it and knocked 

 it down, when it proved to be this insect, and the 

 identical specimen shown to him." Mr. Kirby ob- 

 serves, " this singular fact, while it renders it prob- 

 able that some insects are luminous which no one 

 has imagined to be so, seems to afford a clue to 

 the partial explanation, at least, of the very obscure 

 subject of ignes fatui, and to show that there is 

 considerable ground for the opinion long ago main- 

 tained by Ray and Willoughby, that the majority 

 of these supposed meteors are no other than lumi- 

 nous insects." 



But that the ignis fatuus mentioned by Denhani 

 as having been seen by himself, and which Jie des- 



