NOTES ON CONCHYLIS FLAVICILIANA. 33 



I found K. arvensis an abundant plant in about half a dozen 

 fields and hillsides within a mile of the place where I had first 

 met with C. fiaviciliana, but in only one of these was there the 

 slightest trace of larvse. 



The original locality is a valley, on the bottom of which is a 

 strip of cultivated land perhaps 300 yards wide. The sides of 

 this valley are either open downs or rough Jflowery fields ; they 

 rise above the bottom perhaps 200 feet. C. flaviciliana was 

 found in 1915 on oue side of this valley, from the edge of the 

 cultivated strip almost to the brow of the hill. As one walks 

 to the top of the slope, the hill is seen to be a flat plateau 

 perhaps 100 yards in width, and crossing this one comes to 

 a steep slo]3e leading down to another valley, very similar in 

 appearance and growth to the first. In this valley K. arvensis 

 is abundant, and as it certainly has not been cultivated for 

 the last thirty or forty years, I felt sure that I should find 

 C. fiaviciliana, but there was not the slightest trace of it. 



The new locality which I found was in the first valley, on the 

 other slope to the original locality, and immediately opposite to 

 it. Both these localities did not extend more than 200 yards 

 up the length of the valley, and they were terminated at each 

 end by a high, thick hedge, over which the -images did not 

 appear to be able or willing to establish the species, although 

 K. arvensis occurred freely both higher up and lower down the 

 valley. No doubt before the sole of the valley was cultivated 

 C . flaviciliana oecui3ied it also. 



I take it that the reason of the excessive localism of the 

 species is, firstly, its inability to spread over any trifliug. 

 obstacles ; and, secondly, its habitat must never have been 

 cultivated, or at any rate mown, for of course this destroys the 

 larvae if the mowing takes place in the month of August ; and^ 

 if earlier, leaves the female without anything suitable to deposit 

 her ova upon. 



January 6th, 1917. 



SOME STEPHANIDiE: WITH DESCKIPTIONS OF 



NEW SPECIES. 



By Claude Mokley, F.Z.S., etc. 



In connection with the proposed forthcoming monograph of 

 this family of parasitic Hymenoptera throughout the world by 

 Ernest A. Elliott, Esq., F.Z.S., etc., it were well to hereplace 

 upon record the descriptions of two or three species found in the 

 course of work thereon to be new. For their aflinities I am 

 indebted ' to the monographer. This is a small and very 

 specialised family, of which no more than some sixty-six species 

 were recognised in 1900; since which time a comparatively 

 large number ;of additional ones have been brought forward in 



