The Rev. Canon Norman discovered two specimens of this species in Ireland in June, 1900 (50); in the previous year one of us (Mr. Webb) found a single example at Eton Wick.
The main differences between the members of this genus and their allies are set forth in the generic description and incidentally elsewhere, so we shall content ourselves with giving the distinctive points of the two British species. Haplophthalmus mengii has a number of raised longitudinal ribs on each segment of the thorax, the outer ridges being somewhat broken. There are also two prominent ribs upon the third segment of the abdomen.
BRITISH LOCALITIES:—
England: Eton; (Stebbing, 71a): Sunderland; (Brady, 50a).
Ireland: Corcumroe Abbey; Co. Clare (Norman, 50).
FOREIGN DISTRIBUTION:—
Europe: France; (25): Norway; Prussia; Germany; Bohemia; (59).
