1881. j 43 



Wesm., as a British species. I have had S specimens of this very distinct species 

 in my collection for some time, but did not bring them forward till I could get the 

 ? also. Mr. F. Collett kindly took me to the spot where he had taken the insects, 

 and I had the pleasure of taking a $ and a $ myself within 2 or 3 yards of each 

 other. I hope in a coming No. to describe this addition to our list. It appears in 

 April at the same time as fulvicrus. I have also received several males from 

 Canterbury, taken by my brother this spring, but he failed to obtain the ? , and I 

 took a S at Tunbridge Wells myself, in 1877. The white hairs of the face in both 

 sexes distinguish it from fulvicrus. — Edward Saunders, Holmesdale, Upper 

 Tooting: 9th June, 1881. 



Hypopus parasitic on Ants. — On April 16th, I discovered a curious Acarus 

 parasitic on the abdomen and antennae of Myrmica ruginodis. The Ants had made 

 a small nest under the dry excreta of a cow, in a meadow about three miles from 

 Exeter ; through the kindness of Mr. McLachlan specimens of the Ants with the 

 Acarus attached have been submitted to Mr. A. D. Michael, who says that the life- 

 history is not known, and that the form in which we know it is but a stage in its 

 life, but what stage is a very doubtful matter ; he says that he is trying to clear it 

 up, but it is extremely difficult, the probability is that it is only parasitic in the 

 hypopial stage, and it is more than probable that it is not confined to Ants. 



He says also that these minute creatures are amply provided with suckers on 

 their ventral surface by which they adhere to the most polished chitinous surfaces, 

 and they lay hold of any insect of a suitable nature which passes them. 



The Hypopus is covered with a kind of carapace which is somewhat truncated 

 in front, the posterior portion being drawn out into a tail-like process, something 

 after the manner of the carapace of the king-crab (Limulus). Under the lens 

 it has a shining pearly lustre, tinged with purple. Should any Hymenopterist 

 meet with any of these Hypopi, they would, 1 have no doubt, prove very acceptable 

 to Mr. Michael in clearing up the history of this curious creature. — Edward 

 Parfitt, Exeter: June, 1881. 



The generic term Degeeria. — My note appended to Mr. Meade's remarks on the 

 double use of the term Degeeria, published in the last No. of this Magazine (p. 19), 

 conveys a false impression. Eondani proposed the term Entomobrya for Nieolet's 

 genus Degeeria, not for Meigen's. At first I rightly construed his meaning, but 

 upon referring to Marschall's " Noinenclator Zoologicus " (1873), found Entomobrya 

 placed there amongst the Diptera. Those, therefore, who consider that Nieolet's 

 term Degeeria cannot remain in use, should employ Entomobrya. It would have 

 been better, however, if Eondani had simply called attention to the prior existence 

 of "Degeeria" amongst the Diptera, leaving it to some worker at Thysanura to 

 suggest another name for Nieolet's genus. — E. McLachlan, Lewisham : June, 1881. 



©bttuarg. 



Baron Maximilien de Chaudoir, the eminent Coleopterist, so widely known for 

 his numerous works on the Geodephaga, to the study of which he exclusively devoted 

 himself, died on the 6th Mav last, at the age of 64. His family estates were at 



