INSECTS 



HELOPHORINA (continued) 

 Octhebius pygmaeus, F. 



mon, in the reservoir 



rufimarginatus, Steph. 



a ditch 



Hydrasna testacea, Curt. Hastoe, once 

 found in numbers in dead leaves at 

 the bottom of an empty pond in 

 Brown's Lane 



riparia, Kug. Tring 



nigrita, Germ. Puttenham and Oil- 



stone 

 SPH^ERIDIINA 



Cyclonotum orbiculare, F. 

 Sphaeridium scarabseoides, F. Tring 



bipustulatum, F. 



Cercyon haemorrhous, Gyll. Wigginton, 

 in refuse on a pond bank 



haemorrhoidalis, Herbst. Tring 



obsoletus, Gyll. Tring ; Hertford 



(Stephens) 



aquaticus, Muls. Wihtone, scarce, 



under refuse by the reservoir 



flavipes, F. Tring ; New Barnet (New- 



bery) 



lateralis, Marsh. 



melanocephalus, L. 



unipunctatus, L. 



quisquilius, L. 



Miswell 



Tring ; New Barnet 



Tring 



pygmaeus, 111. 



analis, Payk. 



(Newbery) 



lugubris, Payk. 



the reservoir 



minutus, Muls. 



Wihtone 

 Megasternum boletophagum, Marsh. 



Tring ; New Barnet (Newbery) 

 Cryptopleurum atomarium, F. Tring 



STAPHYLINIDJE 



AUEOCHARINA 



Aleochara fuscipes, F. in-- 

 - lata, Grav. } *"** 



tristis, Grav. Tring, rare, one speci- 



men beaten out of a hedge 



bipunctata, Ol. Tring 



cuniculorum, Kr. Near Bovingdon, 



found just inside rabbit burrows, a 

 very usual haunt of the insect 



lanuginosa, Grav. Tring, a very com- 



mon species 



lygaea, Kr. Near Bovingdon, rare, 



one specimen only under a dead 

 bird 



succicola, Thorns. Tring 



mcerens, Gyll. New Barnet (New- 



bery) ; caught on a window 



nitida, Grav. Tring, the commonest 



species of the genus 



ALEOCHARINA (continued) 

 Wihtone, com- Aleochara morion, Grav. Tring 



Microglossa suturalis, Sahl. Tring, usu- 

 Puttenham, in ally considered a common species, 



but I have only found it rarely 



pulla, Gyll. Bovingdon, taken on flow- 



ers, in May 



Oxypoda spectabilis, Mark. Tring, rare 

 as a rule, but I once found six to- 

 gether beneath a dead rabbit 



lividipennis, Mann. ) 



opaca, Grav. I Tring 



alternans, Grav. ) 



lentula, Er. Tring, rather rare, under 



dead reeds, at the reservoir near Wil- 

 stone 



umbrata, Grav. Tring 



nigrina, Wat. Tring, very frequently 



to be found in garden refuse 



longiuscula, Er. > _. . 



haemorrhoa, Mann. / * 



amoena, Fairm. Tring, two examples 



only in decaying leaves in a hilly 

 wood 



annularis, Sahib. Tring, rather com- 



mon, in and about woods 



brachyptera, Steph. Tring, most often 



found in the spring 



Ischnoglossa prolixa, Grav. Aldbury Com- 

 mon, under oak bark 



Ocyusa incrassata, Kr. Tring, scarce, in 

 moss on old stumps. There are 

 very few localities for this species 

 further south, but it is generally 

 distributed in the midland districts 

 and the north 



maura, Er. 



picina, Aubd. 



Phlceopora reptans, Grav. \ Tring 

 Ocalea castanea, Er. 



badia, Er. 



Ilyobates nigricollis, Payk. Wihtone, scarce, 

 four examples taken in refuse by the 

 reservoir, April, 1900 



glabriventris, Rye. Tring, very rare, 



two specimens taken by sweeping 

 in a wood just on the border of the 

 county, June, 1897 



' This species was found by Dr. 

 Power in May and June, 1863, in 

 the runs of Formica fuliginosa, and 

 has not since been captured ; it did 

 not occur in the nest of the ants' 

 (Fowler, British Coleoptera, vol. ii. 

 p. 47). Dr. Power took his speci- 

 mens at Mickleham in Surrey 

 Calodera riparia, Er. Wihtone, scarce, at 

 the reservoir 



aethiops, Grav. Wihtone and Little 



Tring, rather common 



Wihtone, in moss by 



89 



