104
THE ESSEX NATURALIST
Sitona lineatus (L.) (3), general sweeping, ix.59.
Balanobius salicivorus Payk. (1), on willow stump, 1 ex., iii.60.
Scolytidae
Scolytus rugulosus (Ratz.) (1), under bark of dead blackthorn,
2 ex., iii.60.
Scolytus multistiatus (Marsh.) (2), under the bark of dead elm
branches, 2 ex., iii.60.
References
Alvin, K. L. (1961). Lichens of Skippers Island. Essex Nat, 30: 330.
Nisbet, R. H. (1960). Marine Biology at Skippers Island. Essex Wot.,
30: 247.
Kloet, G. S. & Hincks, W. D. (1945). A Check List of British Insects.
Stockport.
Balfour-Browne, F. (1958). British Water Beetles, 3: 167. London.
Hammond, P. M. (1959). Crepidodera impressa F. (Col., Chrysomelidae) in
Essex. Ent. mon. Mag., 95: 250.
(7) TERRESTRIAL INVERTEBRATES FROM SKIPPERS
ISLAND
By Peter Hammond
This note contains a list of arthopods incidentally collected
while visiting Skippers Island for the purpose of studying the
beetle fauna, during 1959, 1960 and 1961.
ISOPODA. Platyarthrus hoffmannsegii was found in March 1960
and April 1961, in the nests of Lasius flavus F. on Holme
Island.
DIPLOPODA. Several specimens of Tachypodoiulus niger
(Leach) from Holme Island.
INSECTA. Water-boatmen taken from the small pond on the
dry sub-islet to the north of Holme Island in March 1960,
included Notonecta viridis Delc. 2 ex., Corixa lateralis Leach
1 ex., Corixa punctata Ill. 5 ex., and Corixa stagnalis Leach
commonly.
Nests of Lasius flavus F. are abundant amongst the bushes on
Holme Island. A nest of Myrmica ruginodis Nyl. was found on
Heron Island in September 1959. A single Lasius niger L. was
taken by sweeping on Holme Island in September 1959.
A single Colias croceus (Geoff. in Foure.) (Clouded Yellow)
was taken flying over the shore on Holme Island in September
1959. A single Hydraecia micacea (Esper) (Rosy Rustic) was
taken on Holme Island in September 1959.
Forficula auricularia L. (Common Earwig) is abundant on
Holme Island.