Reports to various Correspondents. 1 1 



severe indeed that the patient lias to go to bed. ... I have had 

 Anopheles macidipennis from the same neighbourhood, but it is 

 relatively rare." 



The following reply was sent : " The mosquitoes you send are the 

 common European annidata, now the type of a new genus — Theohaldia 

 (Neveu-Lemaire). It occurs in America, having recently been found 

 there, and also in India. 



" Ficalbi is wrong in saying it does not bite. It is one of our 

 most annoying and venomous species. It has been abnormally 

 abundant this last year and I have had several enquiries concerning 

 it. I have taken it all through the winter at home (Kent) in 

 numbers." 



Later Mr. Hatchett Jackson wrote that, " When last at home at 

 Pen Wartha, Weston-super-Mare, I gleaned some interesting facts a.s 

 to the bite of this very venomous species." Again he gives an 

 interesting fact, namely, that '• From September, 1902, to the 

 beginning of this year we were terribly bothered by it. In early 

 autumn it invaded us in myriads. In a summer-house with glass 

 windows I counted 132 ? 's on November 8th, 1902." 



The following notes were drawn up by him regarding this pest 

 and are i-eproduced in toto : — 



Notes on Theohaldia annulata. 



It usually occurs in the flat country round Weston-super-Mare 

 in large numbers during September and October, bat it only invades 

 the town of Weston itself to any appreciable extent when the w±id 

 blows from the plains, that is to say between N.E and S. It has 

 Iteen relatively rare round Weston and on the Glastonbury Plain the 

 last few years owing to the ponds and the wet dividing ditches, 

 known in Somerset as rhines, being dry or almost dry in summer. 

 In the autumn of the past year (1902) there has been a veritable 

 plague ; there was a sufficiency of water in the warm months and a 

 prevalence of easterly winds in autumn. Hence few persons in 

 Weston and its neighbourhood have escaped the attack of this gnat, 

 The consequences of its puncture may take one of three distinct 

 lines : — 



(1) It is followed by a simple, hard swelling, which, however, 

 rises more slowly and disappears more slowly than the swelling 

 caused by any other gnat known to me. It is also larger, and traces 

 of it may exist for months, e.g.. in my own case I still have a 



