A HISTORY OF CORNWALL 



CURCULIONIDAE (continued) CURCULIONIDAE (continued) 



Gymnetron bcccabungae, F. 



pascuorum, Gyll. 



antirrhini, Payk. 

 Mecinus pyraster, Herbst 



circulatus, Marsh. 

 Anthonomus ulmi, De G. 



rosinae, Des Gozis 



pedicularius, L. 



pomorum, L. Though widely 



spread in the county this 

 beetle has not hitherto caused 

 serious damage to the fruit 

 crops. It appeared in some 

 quantity in the St. Columb 

 district in 1901, and brown 

 undeveloped flower-buds of 

 the apple, occasionally with 

 the little white wrinkled 

 dark horny-headed grub in- 

 side, have been sent in from 

 Penzance, Bodmin and Eos- 

 castle, and have been observed 

 in numbers at Callington and 



rubi, Herbst 

 Nanophyes lythri, F. 

 Clonus scrophulariae, L. 



tuberculosus, Scop. One speci- 



men by the Gunnel 



blattariae, F. 



pulchellus, Herbst 

 Orobitis cyaneus, L. 

 Cryptorrhynchus lapathi, L. 

 Acalles ptinoides, Marsh. 



turbatus, Boh. Millbrook (Keys) 

 Coeliodes rubicundus, Herbst. Pen- 



zance district (Marquand) 



quercus, F. 



ruber, Marsh. 



cardui, Herbst 



quadrimaculatus, L. S. 



exiguus, Ol. 

 Poophagus sisymbrii, F. 



nasturtii, Germ. Sparingly on 



the Inney, not far from Al- 

 tamun 

 Ceuthorrhynchus assimilis, Payk. 



syrites, Germ. Padstow (Lamb) 



setosus, Boh. Wkitsand Bay 



(Fowler) 



constrictus, Marsh. Pound- 



stock 



cochleariae, Gyll. 

 - ericae, Gyll. S. 



erysimi, F. 



contractus, Marsh. 



quadridens, Panz. S. 



gcographicus, Goeze. Pencale- 



nick, Truro 



pollinarius, FOrst 



pleurostigma, Marsh. This 



beetle occasionally lays its 

 eggs in considerable numbers 

 on the roots of turnips, 

 swedes, cabbages and broc- 

 coli, and the larvae on emerg- 

 ing cause local growth and 

 the formation of unilocular 



root galls rarely more than a 

 half to three-quarters of an 

 inch in diameter. A badly- 

 infested swede from Bodmin 

 carried no less than sixty- 

 three, together with a few 

 warty excrescences on the 

 ' bulb.' The root crop is 

 evidently not much affected 

 by the presence of these 

 galls, but young broccoli in 

 the west of the county are 

 occasionally ruined 

 Ceuthorrhynchus verrucatus, Gyll. 

 Widespread but very local 



- punctiger, Gyll. One speci- 



men at Tregantle (Keys) 



- marginatus, Payk. One speci- 



men, Boscastle (Keys) 



rugulosus, Herbst. Looe valley 



melanostictus, Marsh. Mara- 



zion Marsh ; Land's End dis- 

 trict 



chrysanthemi, Germ. Whit- 



sand Bay (Keys) 



litura, F. 



trimaculatus, F. Whltsand Bay 



(Fowler) ; Padstow (Lamb) ; 

 Newjuay 

 Ceuthorrhynchidius floral is, Payk. 



pyrrorhynchus, Marsh. 



nigrinus, Marsh. Looe valley 



melanarius, Steph. 



terminatus, Herbst. Land's End 



(Isabell) 



horridus, F. Gerran's Say 



- quercicola, Payk. One specimen 



in the valley of the Lynher 



troglodytes, F. S. 



dawsoni, Bris. Formerly abund- 



ant at WhitsandBay, and still 

 taken there by Keys 



Rhinoncus pericarpius, L. 



gramineus, Herbst 



perpendicularis, Reich. One 



specimen, Dotvnderry (Keys) 



castor, F. Widespread but 



very scarce 



bruchoides, Herbst. Truro; 



Falmouth ; Penzance 

 Litodactylus leucogaster, Marsh. 

 Phytobius waltoni, Boh. Around 

 Penzance 



quadrituberculatus, F. Whit- 



sand Bay (Keys) 



canaliculatus, Fabr. 

 Balaninus venosus, Grav. 



nucum, L. Two specimens at 



L'ukeard 



villosus, F. 



salicivorus, Payk. 



pyrrhoceras, Marsh. 

 Magdalis armigera, Fourc. 



pruni, L. 

 Calandra granaria, L. 



oryzae, L. 



Cossonus ferruginous, Clairv. Val- 

 ley of the Lynher 



202 



CURCULIONIDAE (continued) 



Rhopalomesites tardyi, Curt. 



Mount Edgcumbe Park; on 



an ash at Millbrook (Keys) ; 



near St. Clement's, Truro 

 Rhyncolus lignarius, Marsh. 

 Caulotrypis aeneopiceus, Boh. 



Millbrook ; Fotvey ; Falmouth 

 Codiosoma spadix, Herbst. Old 



piles on the shore, South 



Down (Keys) ; Falmoulh ; in 



drift wood, Trefuiis 



SCOLYTIDAE 



Scolytus destructor, Ol. This 

 beetle often destroys the 

 bark of felled elm in dif- 

 ferent parts of the county, 

 and a fine series of old elms 

 in Tregolls Road, Truro, were 

 cut down in the winter of 

 19056 on account of the 

 ravages committed for some 

 years back by the repeated 

 mining operations of this 

 beetle and its larvae just 

 under the bark 



rugulosus, Ratz. This beetle 



appeared in considerable 

 numbers in 1901 in some 

 Lord Grosvenor apple trees 

 near Callington that were 

 badly cankered. Lately the 

 beetle has been rather com- 

 mon about Saltash. As in 

 the case of S. destructor, the 

 female tunnels vertically be- 

 tween sapwood and bark, 

 laying her eggs at short in- 

 tervals, and the larvae when 

 hatched continue burrowing 

 and feeding at right angles 

 to the parent gallery till 

 they reach maturity 



Hylastes ater, Payk. Gunnislake ; 

 Penlee Woods (Keys) ; Bis- 

 hops Wood, Truro ; one from 

 College Wood, Penryn 



Hylastinus obscurus, Marsh. 



Hylesinus crenatus, F. 



fraxini, Panz. 



vittatus, F. 

 Myelophilus piniperda, L. 

 Cissophagus hederae, Schmidt. 



Mount Edgcumbe (Keys) ; 

 Launceston 



Phloeophthorus rhododactylus, 

 Marsh. Marazion (Baily) 



Pityophthorus pubescens, Marsh. 



Xylocleptes bispinus, Duft. 



Dryocaetes villosus, F. 



Pityogenes bidentatus, Herbst 



Trypodendron domesticum, L. 

 Mount Edgcumbe 



Xyleborus dispar, F. In Czar plum- 

 tree, Launceston. 



Stylops melittae, Kirby 



