1902.] 265 



seasons. This year it was especially abundant, and seemed to occur in all localities 

 having suitable aquatic conditions, for many miles, as far as Toreross (where it was 

 abundant), the furthest point I worked. It is a very pretty object when on the 

 wing, but rather difficult to catch, and my best morning's work, on September 19th, 

 only produced seven to my net. The only other dragon-flies noticed in the district 

 were Sympetrum striolatum, Cordulegaster annulatus, and Ischnura elegans, the 

 first mentioned in great abundance.— Geo. T. Porkitt, Crosland Hall, near Hud- 

 dersfield : October 9th, 1902. 



Does Sympetrum scoticum hibernate ? — In the " Revue des Odonates d'Europe " 

 the late Baron de Selys-Longchamps says (p. 49) concerning this species: — "J'ai 

 pris quelques exemplaires au commencement du printemps ; peut-etre avaient- 

 ils hiverneV' Later on in the same work when treating on Sympycnaftisca, and 

 alluding to it as the only Odonate that can be said, with certainty, to hibernate, he 

 adds (p. 1(33) : — " Je me souviens cependant d'avoir trouve en avril des Libellula 

 scotica tres-adultes, que j'ai suppose aussi avoir passe l'hiver." I do not remember 

 to have seen these statements alluded to by succeeding writers, but it is quite pos- 

 sible some such notice may have escaped me. In any case it seems desirable to call 

 attention to the subject as a guide to observers. — R. McLaculan, Lewisham, 

 London : October 8th, 1902. 



A few Trichoptera from West Cornwall. — During a second visit to Cornwall 

 which I paid in May last, I was able to add somewhat to my former list of Tri- 

 choptera, and to give additional localities (see ante p. 112). Limnophilus auricula, 

 Curt., Trewoofe, Marazion, L. vittatus, F., Trewoofe, L. centralis, Curt., Flushing, 

 near Falmouth, L. hirsutus, Piet., Falmouth ; Silo pallipes, Curt., Penzance, Budock ; 

 Crunozcia irrorala, Curt., Flushing ; Tinodes assimilis, McLach., Flushing ; 1'hilo- 

 potamus montanus, Don., Boleigh, Penzance; Wormaldia occipitalis, Pict., Penzance, 

 Flushing; Polycetitropusjlavomaculatus, Pict., Penzance, Flushing; Rhyacophila 

 dorsalis, Curt., Lamorna Cove ; Agapetus fuscipes, Curt., Penzance, Flushing. — 

 W. C. Boyd, The Grange, Waltham Cross : September loth, 1902. 



On a nest of Formica sanguinea and other Hymenoptera near Wellington 

 College. — The following particulars of a nest of the above species which I found 

 near Wellington College on September 6th may be of interest to some of your readers. 

 The nest was only indicated by a small burrow in the railway bank, from which 

 from time to time issued workers of F. sanguinea (I may mention that it was a very 

 cold dull day), which had a run round and then entered the nest again. This was 

 composed of the rotten fibre of a fir tree root, and penetrated to the depth of about 

 a foot into the bank. I dug the nest out and collected from it the following : — 28 

 sanguinea $ , 4 of which were immature, 1 sanguinea $ , bfusca ? , 4 wingless, 1 

 winged ; Lasius umbratus ? , 9 wingless, niger ? , 2 wingless, and pupae of sanguinea 

 in all stages. The ants seemed very sluggish, and were I suppose preparing their 

 winter quarters. Methoca ichneumonides—1 found a $ of this species dragging a 

 very small sandlly towards a burrow from which I was taking Mellinus arvensis. I 

 think it must have intended to enter the burrow, as having slipped three or four 



