272 THE entomologist's record. 



entire district displayed in a few bushels of river drift. It may there- 

 fore prove of interest to detail the captures made in such a manner 

 from the flood debris of the upper waters of the Lledr, a river, which 

 rising high among the Snowdonian mountains, runs down the Dolwyd- 

 delau valley, and joins the Conway above Bettwys. I was fortunate 

 enough, in company with two friends, coleopterists like myself, to 

 strike this river, near the Roman bridge, on a gloomy morning in 

 August last, a day which had succeeded a time of heavy rains. The 

 thin mountain hay left in swathes along the river meadows had been 

 carried violently down the stream, and, where its course made a sharp 

 angle, had been heaped high in wet hummocks and tangled masses 

 round the curve. The river was just then receding, and there had 

 been no sun to dry the debris and facilitate the escape of the beetles. 

 The situation was grasped in a moment, and the explorers, forgetful 

 of the high mountain peaks which had been their goal, with one consent 

 turned aside to the river bank, and were soon busily engaged in shak- 

 ing out the wet hay over large sheets of brown paper. The list which 

 follows is the result. It is interesting, as revealing a coleopterous 

 fauna of this upland valley, which probably the most careful search, 

 under normal conditions, would have failed to bring to light. The 

 occurrence of some of the species in such a locality is surprising, and 

 many of them have not, as far as I am aware, been previously recorded 

 from North Wales. 



The most interesting capture was undoubtedly a single specimen of 

 Lathrobium atiipcdpe, hitherto only recorded from Scotland. Another 

 rare species was Fliilontlim Imrn.s, of which four were taken. Atli- 

 monia tanareti was an unexpected discovery, as not a leaf of tansy 

 can be found in the whole valley, and this rather confirms Canon 

 Fowler's conjecture that the food of the larva, in such a locality, may 

 be wild thyme. The most abundant insect in this debris was Ancho- 

 memis parnmjin^ictatits, Avhich literally swarmed, while liarpalns 

 latus, and Trechus nbtusus came in good seconds. Amara avlica 

 and Staphylinus caesareus were also abundant. The following is a 

 full list of all the species taken : — Carabns arvensis, C. nemondis, 

 C. cateuulatus, Nebria gyllenhali, Bysckirius globosus, Harpalns 

 latus, Pterostichns niyer, 1'. versicolor, 1'. vitreus, P. niyrita, P. 

 strennus, P. diliyens, Amara aulica, A. acuminata, A. iunicollis, 

 Taphria nivalis, Anchomenus fuliginosns, A. pari(m2Jnnct(dns, 

 Bembidium (jnttula, Trechus obtusns, Patrobns excavatns, l.acco- 

 philus interruptus, Hydroporus niyrita, H. pid>escens, Jlybius 

 fuliyinosus, Anisotoma ovalis. Bister neylectus, i.'iioleva morio. 

 Colon brnnneum, Silpha opaca, tlomalota atramentaria, H.elonyatida, 

 (hypoda opaca, llyobates niyricollis, Tachyp)orus formosus, Meya- 

 cronus cinyulat^is, M. analis, Mycetojwrus anynlaris, M. lepidus, 

 Quedius semiaetieiis, Stap)Jiylinus caesareus, Ocypus cnprcus, 

 rhilontlins laminatus, P. p)ohtus, P. intermedins, I', varians, P. 

 lucens, P. niyrita, /'. frossulus, Othius mclanorephalns, (). myrme- 

 cophilus, Lathrobivni atripalpe, L. midtipiinctum, ('ryjjfobium 

 glaberrimmn, Stemis sp)e.culator, S. p)rovidus var. royeri, S. pallipes, 

 >S'. brumiipes, S. declaratus, S. nitidinsculus, S. similis, Lesteva 

 sharpi, L. puhescens, L. sicula, (dophruni jficeum, Cryptoliypnus 

 riparius, Ayriotes obscurns, Serica brunnea, Uydrothassa ancta, 

 U, maryinella, Adinionia tanaceti, Otiorrhi/nclms maurus, Barynotus 



