COLEOPTERA. 



261 



elm, Gibside. The following clay I found it in greater numbers (fungi 

 growing on elm, holly, etc.) in common with Triplax aenea, Schal., the 

 latter being in such numbers as to be almost a nuisance. 



Cervlox fagi, Bris. — On May 13th, 1901, I came across a Cerylon 

 answering to ('. faiji, Brisout, from a rotten tree lying in a wood near 

 W'inlaton Mill. Liodes hiiweralis, Kug., Ai/athidinin niijriptnne, Kug., 

 A. rntiinilatum, Gyll., Scaphi^o))ia atjaricinum, L., various Ilhizophagiis, 

 two ((? and ? ), Clinocara undulata, Kr., Cerylon fernif/ineuni, Steph., 

 etc.. were also taken. 



Cerylon ferruCxIxeum, Steph. (angustatum, Er.). — Is, I think, the 

 commonest species of this genus we have in the Derwent valley. I 

 have taken it beneath bark of fallen oaks at ^Yiulaton Mill, Gibside, 

 and Rowlands Gill, and one evening (April 28th, 190J:) I took it in 

 numbers from a rotten oak-stump near "Winlaton, many of the speci- 

 mens evidently freshly emerged. From the same stump I captured 

 several coleopterous larvse and pup» of C. ferrnrjineum (/) but unfortu- 

 nately they died before reaching maturity. 



Cerylox histeroides, F. — Recorded by Mr. Bold "beneath bark," 

 Ravensworth, and near Gilsland "rare" (X«f. Hi>it. Trans, of yortli- 

 uniherland and Durham, vol. iv., pt. 1, p. 59, 1871). I have met with 

 this species only once, from under the bark of a felled cherry tree in 

 Gibside, -June 29th, 190J:. Thus it will be seen that the whole genus 

 Cerijhm is to be found in our valley. 



Rhizophagus perforatus, Er. — -Was taken from beneath the bark 

 of a felled plane tree at Lockhaugh, near Rowlands Gill, in September, 

 1903, where I again came across it early this year. R. depressus, F., 

 E. ffrrui/inens, Pk., R, dispar, Pk., and R. bipiistiilatus, F., occur com- 

 monly in the same locality. 



Lathridius bergrothi, Reit. — For more than three years I have 

 taken Lathridius herijrothi, Reit. — but recently added to the British 

 catalogue — commonly with other species of the Latlnidiidae, in a cellar 

 at Winlaton, mostly from the whitewashed walls and ceiling. It bids 

 fair to spread, as did Xiptus hololeucus, Fall., about forty years ago. 



CoRYJiBiTES cupreus, F., var. .eruginosus, F. — I have found this 

 variety commoner in hilly districts than the type ('. cuin-eus. The 

 latter, however, occurs the more frequently in the Derwent valley. 



]\Ialthixus frontalis, Marsh. — I took one example (early -June) by 

 beating birch and hazel m a wood near Winlaton. It unfortunately 

 managed to escape whilst bottling an Attdabus. I had no opportunity 

 for searching further in that district, but luckily, the Malthinus being 

 new to me, I happened to make a careful examination of it before it 

 " slipped " me. 



Bruchus pisi, L. — Introduced. My brother found a living speci- 

 men in a dried pea which he picked up in the Durham College of 

 Science, March 8rd, 190i. 



Lochji.ea suturalis, Th. — I believe, though not recorded by Bold, 

 this species is common on all our moorlands. On April 10th, 1903, 

 Mr. David Rosie, Newcastle, sent me a few very dark examples taken at 

 Prestwick Carr, one of them being quite black. I think it must be 

 referred to L. suturalis, Th., var. niyrita, Weise, described by Mr. 

 Tomlin in the Ent. Mo. Ma;/., August, 1904, and not to be found, as 

 yet, in our British catalogue. 



Clinocara undulata, Kr. — Locally near Winlaton Mill, in numbers 



