430 Mr. J. C. Dale on some British Diptera. 



been such in the inland neighbourhood, so many as seventeen have 

 been reckoned on a single tree. In a rabbit warren at the wild pen- 

 insula of the Horn, in the north-west of the county of Donegal, I 

 once, on the 27th of June, saw forty of these birds in a dense flock. 

 A note apj^ears in my journal stating that, on the 3rd of April and 

 several previous mornings, seven or eight of these birds frequented 

 an old garden in the town of Belfast, and one or two of them were 

 occasionally to be seen perched on the back of a cow kept there. 

 By (reorge Mathews, Esq., of Springvale, county of Down, I have 

 been informed that a relation living there, had a pet gray crow which 

 followed him about the place. When not so engaged, it sometimes 

 went to feed with its brethren on the shore, but always hurried 

 back to its master when whistled for. 



In the middle of May last, I met with this species in the Valley 

 of Sweet Waters, near Constantinople, and at the beginning of June, 

 in the islands of Delos and Paros. 



LI. Descriptions, ^-c. of a few rare or undescribed species 

 of British Diptera, pi-incipally from the collectiGu of 3. C. 

 Dale, Esq., M.A., F.L.S., &c. 



To the Editors of the Annals and Magazine of Natural History. 



Gentlemen, 

 Having some Diptera in my British Collection of Insects which I 

 could not ascertain the names of, I forwarded a few to Mr. Haliday 

 for his opinion ; and wishing that other entomologists should profit 

 thereby as well as myself, I think I cannot do better than to make 

 it pubUc through the medium of the ' Annals.' 



I am, yours obediently, 



J. C. Dale. 



Curtis's Guide, genus 1157, Limnobia. (Subgenus Dicranomyia .?) 

 Sectio. — Nervo cubitali furcato ramis liberis. 

 Areola disci nulla. 



Areola brachiali anteriore posteriorem superante. 

 L.flavo-limhata{C.G.,s^eciesZd^). — Fusca, thoracis et scutelH limbo, 

 pectoris vitta laterali dilatata et ventris incisuris flavis : alls ob- 

 scure hyalinis, stigmate pallido, nervis pubescentibus. 

 ^ ? Long. 2^—3 ; alar. 6 lin. 



? Synon. L. (39 C. G.) pavida, A. H. H., Ent. Mag. I. From a 

 late letter it appears to be different from pavida, though allied to it. 

 " Fusca iiitida. Antenna fuscae thoracis longitudine. Mesothoracis scu- 

 tum et scutelluni flavo-marginata. Pleurce magna parte flavae. Abdominis 

 incisurae ventrales et dorsalis uUi)iia tenuiter flavicantes. Terebra rufescens 

 gracilis recurva. Forceps <? brachiis linearibus reflexis. Pedes fusci. Hal- 

 teres fusco-paUidi. Alpe obscure-hyalina?, nervis pubescentibus, stigmate 

 obsolete Uitescente ad apicem nervi subcostalis. Nerviis subcostalis margi- 

 nem attingit adversus fuscam nervi cubitalis. Nervus mediastinus cum sub- 

 costaU connexvis paulo ultra ortum radii, et cito inarginem attingens. Nervus 



