THE INSECTS OF NORTHUMBERLAND AND DURHAM, 279 



fertility and barrenness, of height and hollow, of shelter and 

 exposure, cold and heat, in short, a happy combination of extremes, 

 appear to afford the ground work for a rich insect fauna. 1 1 is 

 on the borders of the ocean, by the banks of rivers and lakes, the 

 edges of swamps, mosses, and heaths, in the shelter of the hedge- 

 row, by the borders of fields, in the glades and margins of woods, 

 and the open sylvan glen, rather than the sunless depression, or 

 the shady depths of the forest, and the vicinity towards the apex, 

 rather than the bulk of the mountain, that the Coleopterist gathers 

 his richest harvest. Among the diversities of condition, it would 

 be easy to point out a series of districts, each characterized by 

 peculiar inhabitants. The most marked of these is the sea-coast, 

 or littoral region. This may be again sub-divided into the 

 littoral, and sub-littoral or maritime. To the former belong the 

 Coleoptera that frequent the sand-hills and the sea-banks, of which 

 we have as representatives : — Dromius fasciatus (not exclusively), 

 Calathus flavipes (fulvipes, Gyll.), C. mollis, Broschus cephalotts, 

 Ojihonus punctlcolllSf 0. puhescens, Blemus lapldosus (for the most 

 part), Licinus dej^re.HSUs, (Jorticarla crenulata, Saprlnus marUi- 

 mus, yEfjialia globoaa, Eucldora Juliij var. FrisckU, Apion 

 Ononis, Cneorhinus geminatus, Sitona grisea, Glconus sulciroslrls, 

 Otiorhynchus rugifrons, 0. atro-apterus, PsyUiodes widrcida, Lagria 

 hirta, Sarrotrium muiicum, and, for the most part, Jihyzobtuf 

 Litura, and Coccidula rufa, d;c. To the latter belong the species 

 dwelling under sea-weed, or in sand, or that find a lurking place in 

 the fissures of rocks, or beneath stones daily submerged by the tide. 

 Such are — Acpus fulvescens, Bemhidiwfa later ale, Cercyon llUorala, 

 Philonthus Xantholoma, Bh. Fucicola, xy talus Jlavlpjes, Micra- 

 lymma hrevipenne, Ornalium Iwviusculum, Bkytosus spinifer, 

 Aleocliara ohscurella, Jlomalota Algw, II. sericans, and Tachyusa 

 uvida. The occupants of cultivated and pastoral districts, of the 

 woodlands, of marshes and of river banks, of stagnant or 

 running waters, &c., might, in like manner, be classified, but they 

 are too numerous to admit of special indication. Heaths afiord 

 a well-marked selection, borrowing, however, occasionally from 

 the adjacent bogs. To these belong: — 'farus hasalis, Olisthopus 

 rotundatus, Angutor Anthraclnus, Omaseus Orinomus, Steropus 



