310 THE ENTOMOLOGIST S RECOKD. 



England, cither by a secular change of climate, or by the competition 

 of a later migration, or by both forces combined. As to the 642 species 

 common to both areas, we may perhaps regard them as more or less 

 dominant forms, that is, such as possess a sufficient organic plasticity 

 to allow of their adjusting themselves to conditions fatal to other and 

 even closely related species. 



Leaving, however, these larger speculations for a more detailed 

 consideration of the various species enumerated by Mr. Day, a record 

 that at once arrests our attention amorg the (icodciihai/a is that of 

 Lcbia ciK.v-Diinnr. Capricious as are the appearances of this rare 

 insect, its occurrence in Cumberland only deepens the mystery of its 

 range and of its economy, and many more captures will be necessary 

 before we can attempt any satisfactory explanation of why it should 

 appear so rarely and so sporadically. Another beetle whose occur- 

 rence on the mountains of Cumberland may well surprise the 

 Southern Coleopterist is Calatlixs /W.stffN, a species usually associated 

 with the sandy sea shore of the South of England. 



Among the Staplnjlinidac, Alitalia iiiipresxa is an insect on whose 

 capture Mr. Britten may be congratulated, while his record of 

 lJi/poc!//>tiis aj)icalis "among ivy on old walls," certainly extends our 

 knowledge of the economy of that species. Tachinns rufipenjtis is also 

 another noteworthy capture of Mr. Britten, as is Staiiln/liniis fulripcn 

 of Mr. Day. 



Limits of space, however, forbid an extended reference to many 

 other interesting records contained in these two papers, which will 

 either by their rarity or unexpectedness detain the attention of the 

 Coleopterist reader. Of a few records which could not easily have 

 been excluded by Mr. Day, although neither he nor his co-workers are 

 responsible for them, confirmation by more recent captures would, it 

 must be admitted, be very acceptable— such are X<>ti<>iihiliis niiiprs, 

 FAa)>hrus lappouicnx, Bailistcr nodalis, Jli/ilroiionis halmsis, the two 

 species of Faedents (about which Mr. Day himself hints a doubt) 

 and Bledius erraticus. 



Two names in the list certainly deserve special mention, llijdrama 

 britteni, Joy, and T/iinubiiis pallidus, Newbery, species described quite 

 recently as new to science from Cumbrian specimens, while another, 

 Himalinni brericolle, Thorns., was added to the British list in 1909 on 

 captures made by Mr, Day and Mr, Britten. Cumberland, even 

 limited faunistically as it is for the purpose of this list by its 

 boundaries, oilers perhaps as varied physiographical conditions as any 

 county in the British Isles. It includes lofty mountains, lakes, 

 rivers'i nujsses, and woodlands, the sandhills of the coast, and the mud 

 flats of the Solway estuary, and the extension of the range of the ant 

 h'onnica rufa within its borders ensures the habitat for several 

 myrmecophilous Coleoptera absent from many of our northern 

 counties, hence we are not surprised to find so large a Coleopterous 

 fauna within it. We shall anticipate with an interest which we think 

 our readers will share those further portions of this list which will 

 deal with the remaining groups of the order, and we trust that the 

 completed work may be obtained in such a form as to make it possible 

 for every Coleopterist to place, as we are sure they will be glad to do, 

 the Coleoptera of Cumberland in one complete volume on his shelves 

 beside the other local records of the order which already exist and 



