THE ENITHARES (Hemiptera-Heteroptera: Notonectidae) OF THE ...

400 Pacific Insects Vol. 10, no. 2
NSW, Leeton, 20.XI.1936, N. Geary, 1# & 1$. Como near Sydney, 1.III.1934, A. Musgrave,
1$. East Gordon, 7.III.1943, AM, 2£$. Wyvern Bringagee, 25.V.1947, V. Robb, 1# &
1 $. Marrickville, from old pottery pit, 30.IV.1924, F. McNeil & A. Livingstone, 1 # &
1$. S. A. Adelaide, Sturt Creek near Blackwood, E. Troughton, 1 # & 1 # (AMS).
NSW, Sydney, 9.V.1951, Woodwad, 1 # & 2$$. Brookfield, 27.IX.1958, R. Metcalfe, 1 £.
Upper Brookfield, 15.V.1956, H. J. Lavery, 1#. Kyogle, 20.XII.1952, Talbot, 1$. Albury,
25.XII.1953, K. L. S. Harley, 1 #. Canberra, N. Yarrow, 20.IX.1956, 1 £. Bundamba,
21.VI.1952, J. Davis, 1 $. Queensland, Cairns, 24.VIII.1952, J. R. Pollock, 1 £. Brisbane,
various collectors & dates, 1 # & 5£$. Theodore, 14.1.1952, J. Letchford, 1 $. Darlington,
LXII. 1946, J. Rosser, 1 £. Samford, 2. X. 1937, 1 #. Beaudesert, 20.11.1954, R. E.
Harrison, 1 $. Hartridge, Cooyar, 11.VIII.1948, 1 £. Lawes, 28.IV.1956, G. Gibson, 1#.
Ladybrook, 25. III. 1957, D. J. T., 1 £. Mt Glorious, 16. IV. 1961, L. de Lacy, 1 $. (UQ
Coll.). Victoria, Kooba Lagoon, 1955, W. J. M. Vestjens, 2£$. Queensland, Eidsvold, VII-
IX. 1929, TL. Bancroft, 1# & 1$. Palm L, 20.XII-6.1.1930-31, LM. Mackerras, 1£. N.
S. W., Killara, 4.III.1936, M. F. Day, 1$. Orange, 17.VIII.1949, A. Dyce, 1# & 1£. Narrabeen,
15.11.1936, D.F. Waterhouse, 1^ & 1$. French's Forest, 9.II.1936, Waterhouse,
1£ & 1 nymph (ANIC). Canberra. 10-11.111.1956, E. S. Brown, 14^ & 18 £. N. S. W.,
Blackheath, 5.III.1956, Brown, lg & 1 nymph (Brown). W. A. Perth, lg. N. Queensland,
Coomooboolaroo Duaringa, Rosenberg 1^. (USNM). Prince of Wales I., J.A. Kusche,
lgv & 3gg. Queensland, Upper Cedar Creek, 3.1.1963, T. Brooks 1^ & lg. (BISHOP).
Victoria, Fitzroy River, 2$$. N. S. W. Nowra in stream, Cambewarra Range, 1925, F. A.
Rodway, 1# & 3gg. Valley Heights near Katoomba, 25.V.1954, Brown, lg (BMNH). Victoria,
Kiarta, X.1928, F.E. Wilson, lg. Melbourne, 16.11.1918, 1#. Reservoir, 28.IV.1925,
J.E. Dixon, 1# & lg. Eltham District, 2.V.1925, Dixon, 1# & 4gg. Flinders I., 5.IIL
1958, lg. Plenty River, 3 ^ & 2gg. Clunes, 9.VII.1954, A. Neboiss, 1#. Tambo Crossing,
1.1935, Wilson, \& & lg. Goulburn River, Alexandra, 7.XI.1927, J. Clark, 1#. S.
Australia, Lucindale, 3.IV.1914, C. French, lg. N. Queensland, Kuranda, I. 1908, R.W.
Armitage, 43\? & 5gg (MELBOURNE).
Comparative notes : E. woodwardi, bergrothi and hebridiensis are all very similar in structure
and appearance, all 3 species having very short mid-femoral hairs. The width of
the $ 1st tarsal segment of fore leg shows a gradual reduction through hebridiensis (fig.
86) to woodwardi (fig. 160). E. woodwardi is the most easily recognised species by the
nodule-like projection at the base of the posterior margin of the pronotal fovea (fig. 159)
the development of this nodule is somewhat variable. The lateral margins of the metaxyphus
of woodwardi are clearly concave whereas in the other 2 species, the lateral margins
are more or less straight. Finally woodwardi has the posterior margin of the lateral arms
of the basal plate clearly produced (fig. 158). E. hebridiensis and bergrothi have the posterior
margin straight or rounded respectively (fig. 87 & 154). The parameres of hebridiensis
are clearly finger-like (fig. 87) ; bergrothi has rather more triangular parameres (fig. 154).
Enithares hippokleides Kirkaldy Fig. 165-172.
Enithares hippokleides Kirk. 1898a, Rev. Ent. Caen 17 : 173 ; 1904, Wien. Ent. Ztg. 23 : 98, 105.—
Lundblad, 1933, Arch. Hydrobiol. Suppl. 12 : 182.
Enithares fruhstorferi Brooks, 1948, J. Kans. Ent. Soc. 21 : 49-50, New Synonymy.
$$ & $#. Length 10-10,2 mm, maximum width 4 mm,