1913.] 87 



took care, however, to teep tliem sufficiently clamp as spring came on. 

 For the guidance of others I may add that I have never seen these mines 

 on the strong bushy plants of the hedges, but only on young and 

 straggling ones in wet situations. 



CCENOSIA STIGMATICA, Sp. U. (S). 



" A new and very interesting Coenosia,'" was Herr Stein's remark 

 in returning it. The conspicuousness of the outermost costal cell, which 

 is dark grey — in strong contrast with the clearness of the rest of the 

 wing — distinguishes it at once, so far as I know, from any other Coenosia . 



It is a small species ; one of my specimens being of the size of infantula, the 

 other somewhat largex* :— Thorax and abdomen dark grey, the former unsti'iped 

 and with the shoulders rather paler, the latter with four pairs of somewhat 

 elongated spots ; hypopygivinr of the usual form, a pair of small flaps embracing 

 the end of the style. Prons fully as broad as long, the centre occupied by the 

 usual V-shaped black mark and the margins white ; the face viewed from the 

 front has the upper half of the eye margins white and the lower half black ; 

 antennae black, aristse bare, palpi black. All the femora black, but yellow at 

 extreme tip ; tibiae yellow though somewhat obscured by the rather strongly 

 developed pubescence, the bristles very few in number, weak and hair-like ; fore 

 tibiae with a preapical bristle and another on outer side at junction of middle 

 and lower thirds, middle ones with one bristle only — on tipper side just below 

 the centre, hind pair with three— one on upper side near apex and two on outer 

 side, namely, one above the middle and one in lower third. Wings clear, outer- 

 most costal cell conspiciiously grey, calyptra moderately large with unequal 

 scales, halteres yellow. 



Besides the striking character of the clouded costal cell, almost 

 equally important are the fewness of the tibial bristles and their weak 

 hair-like nature. C. stigmafica is another of the rare things the Monnow 

 produces. I swept two males on September 7tli, 1910, from amongst 

 a varied growth of mugwort, viper's bugloss, Senecio, butter-bur, and 

 other plants on one of its sandy deposits. September imfortunately is 

 a late date in a general way for this locality, and largely on this account 

 I have neglected paying it another visit at the proper time, and there- 

 fore have no idea whether the insect is fairly common there or not. 



I have only to add that, as it is to Mr. Collin that most of us, 

 since Mr. Verrall's death, resort in our difficulties, I have placed one 

 specimen at least of each of these four novelties in his collection. 



Tarrington, Ledbury : 



January, 1913. 



