Insects. 5445 



3. Hydraena, Kngel. 



H. riparia, Kugel, Steph. H. gracilis, H. pulchella, H. nigrita, H. 

 pusilla, Staph. Rare; Salterns, Island of Portsea. 



5. Fam. Hydrophilid.<e, Leach. 



1. Limnebius, Leach. 



L. lutosus, Marsh., Steph. L. nigricans, L. nigrinus, L. mollis, L. 

 marginalis, Steph. Rare ; ditches at Chark Common. 



2. Berosus, Leach. 



B. luridus, Linn. Not common ; ponds at Chark. 



B. aericeps, Curt. Not unfrequent ; ponds at Chark. 



3. Hydrophilus, Geoff. 



H. piceus, Linn. Occasional; ponds near Southsea. 



4. Hydrobius, Leach. 



H. fuscipes, Linn., Steph. H. chalconotus, H. subrotundus, Steph. 

 Very common ; ditches. 



H. globulus, Payk., Steph. H. minutus, Steph., Laccobius limba- 

 tus, Steph. Not abundant ; ditches at Chark. 



5. Laccobius, Erichs. 



L. minutus, Linn. L. bipunctatus, L. striatulus, L. colon, Steph. 

 Not abundant ; ditches at Grange and at Chark. 



6. Philydrus, Sol. 



P. melanocephalus, Oliv., Steph. P. testaceus, P. ochropterus, P. 

 torquatus, P. fulvus, Steph. Abundant ; under debris along margins 

 of salt-marshes and pools. 



6. Fam. Sph^ridiid^:, Leach. 



1. Cyclonotum, Erichs. 



C. orbiculare, Fair. Abundant ; among damp weeds, on aquatic 

 plants, and along banks of ponds and ditches. 



2. Sphseridium, Fair. 



S. Scarabseoides, Linn., Steph. S. lunatum, S. Daltoni, Steph. 

 Very common ; in cow-dung. 



