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Mr. F. Enock exhibited a specimen of the curious aquatic 

 Hymenopteron Prestivichia aqtiatica, ? , which Sir John 

 Lubbock first captured in 1862, but which had not been 

 recorded since that date until its rediscovery in May, 189G. 

 Mr. Enock said that the male had remained unknown until 

 June last, when he captured several swimming about in a 

 pond at Epping. The male was micropterous, and, like the 

 female, used its legs for propelling itself through the 

 water, 



Mr. Tutt exhibited a beautiful aberration of Tcphrosia 

 histortata (cre/mscularia), in which the ochreous ground-colour 

 was much intensified, and the transverse shade between the 

 median and subterminal line was developed into a brown 

 band ; the transverse basal, median and subterminal lines 

 on the forewings, and the median and subterminal lines on 

 the hindwings, being strongly marked in dark brown. 

 It was taken by Mr. J. Mason at Clevedon in March, 1893. 

 Mr. Tutt further drew attention to the fact that it would be 

 well if the Fellows of the Society would, in future, to clear 

 up the confusion between this and the allied species, use 

 the synonymy recently worked out at length by 

 Mr. Provit. He had concluded that the double-brooded 

 species, normally appearing in March and again in July, 

 should be called histortata, Goetze (= hiiindulata, Vill., 

 crepuscularia, Dbldy., laricaria, Sta.), whilst the single- 

 brooded species, appearing normally in May, should be called 

 crepuscularia, Hb. This latter has for some time, in the 

 magazines, been called hiundularia, Esp. It is the crepus- 

 cularia of Stainton's Manual. He had no doubt whatever 

 of the distinctness of the two species which Mr. Barrett 

 would unite, and the difference of opinion at present existing 

 was largely a matter of definition as to what constituted a 

 species. Mr. Tutt also exhibited the cocoons, pupal-skin, and 

 aberrations of the imago of Zygmia exulans. The cocoons 

 were spun upon one another, five in a cluster, and 

 Mr. Tutt stated that the species was exceedingly abundant in 

 the pupal and imaginal stages during the first week of 

 August on the mountain slopes above Le Lautaret, in the 

 Dauphine Alps, at from 7,000 to 9,000 feet elevation. The 



