1906. ] 37 



Hartlepool ; I have had the larvae of 0. violaceum sent me from Liverpool. Clytus 

 arcuatus, L. : Bold records two. examples from the district ; Mr. Gardner has taken 

 it not infrequently at Hartlepool, and I have heard of the " hornet-beetle " (which 

 I can only refer to this species) as having been found with timber at Sunderland. 

 Molorchus minor, L. : Mr. Grardner has taken about a dozen specimens of this 

 interesting and peculiar Longicorn at Hartlepool. LeiAura testacea^ L., Strangalia 

 puhfiscensy F., and 8. revestita, L. : Hartlepool, one example of each ; S. revestita is 

 in the doubtful list of Beare and Donisthorpe's " Catalogue." S. aurulenta, F. : 

 a few taken by Mr. Robson at Hartlepool, " probably" introduced with birch. Acan- 

 thocinus xdilis, L. : In the Entomologist's Annual, 1874, p. 55, Mr. Gardner gives 

 an interesting account of seeing this species in great numbers at Hartlepool : I have 

 other records from Newcastle, Sunderland, Hartlepool, Durham, Winlaton, and 

 Burnopfield, and have recently had it sent me from Long Houghton, Chester Moor, 

 Byer Moor, Winlaton, and other'colliery districts. Pogonochferus fasciculatus, De G. : 

 taken in great numbers at Hartlepool, and probably imported from Norway; I also 

 have two or three other species of the genus not yet determined. Monohammus 

 sartor, F. : one example has been taken at Sunderland, whilst several have occurred 

 at Hartlepool. M. sutor, L. : I have notes of this species from Hartlepool, Sunder- 

 land, Durham, Newcastle, Stockton, and near Burnopfield. M. titillator, F. : 

 Mr. Robson has taken an example of this fine Longicorn at Hartlepool. Saperda 

 scalaris, L. : Hartlepool, probably introduced with alder. CalUgrapha signati- 

 pennis, Stal : a Mexican species, recorded by Bold as having been found in a 

 greenhouse (imported with plants ?) near Newcastle. Blaps gages, L. : the second 

 example recorded from Britain ; taken by Mr. Frank Winter, Newcastle, from a case 

 of St. Michael oranges from Ponta Delgada, Azores ; I had the insect sent me for 

 identification whilst still alive. I afterwards learned that this huge Blaps had been 

 immersed for some time in a bath of chloroform, with which the captor thought he 

 had successfully killed it. Our common species (B. mucronata), too, seems quite 

 indifferent to most poisons or anaesthetics. Pissodes gyllenhali, Schon. : Sunder- 

 land, with pit props (small larches and Scotch firs) from Norway ; Bold speaks of it 

 being exhibited by a miner as " the Norway wood louse." P. piniphihis, Herbst : 

 Sunderland and Hartlepool. Cryplialus tilix, Panz. : one example, Hartlepool (or 

 Teesdale ?). Pityogenes chalcographus, L. : the examples recorded from Sunderland 

 are, I feel sure, introduced ; Mr. Gardner has seen this small Scolytid flying in clouds 

 in the Hartlepool timber yards. Tomicus sexdentatus, Born : one example, Hartlepool 

 (or Teesdale ?). T. typographus, L. : Hartlepool (or Teesdale ?) ; Mr. Newbery 

 kindly identified these Scolytidx, and, excepting the Pityogenes, there is some doubt 

 as to whether they were imported or not ; Mr. Gardner unfortunately did not keep 

 data of these captures, and considering my recent (indigenous) finds of the same 

 family, viz., Dryoccetes autographus, Ratz. (Gibside), D.alni, Georg. (Derwent Valley), 

 Tomicus acuminatus, Gyll. (near Hylton), and T. laricis, F. (near Gibside), there is 

 no reason why the insects above mentioned should not occur with us, though for the 

 present I prefer to regard them as introduced. 



Of course, many other species, mostly of a cosmopolitan character have been 

 introduced into the Northumberland and Durham district, of which I may mention 

 the following: — CaZosoma sycophanta, L. (Newcastle), Carpophilus, Orthocerus, 

 Lsemoplilceus ferrugineus, Steph., Silvanus surinamensis, L., S. Uderdatus, F. 



