178 (August, 



have taken the males of P. cornuta and both sexes of P. Masoni on 

 Achillea millefolium. This latter, I am informed by M. Vachal, is 

 probably synonymous with clistans, Eversmann, but I do not propose 

 to change the name until I am certain on this point, as the synonymy 

 of the species with dilated scapes is very complicated. The very rare 

 P. dilatata was also taken by Mr. Billups on Achillea. F. 

 punc/uktfissima, Smith, has not been recorded since its capture by 

 that author at Birch Wood, previous to 1855. 



The males of HaUcfus and Sphecodea begin to appear about the 

 end of June or the beginning of July, increasing in numbers as 

 August approaches ; they mostly frequent the flowei's of yellow 

 Composites and thistles, although they may be found on other flowers. 

 The males of cylindriciis and albipes are often met with in great 

 numbers, those of the former species varying exceedingly in colour, 

 some having the body quite dark, others with the intermediate 

 segments red. The rarities in Halictus are — sexnotatus,\{\iose ? ,as I 

 mentioned before, occurs on Scrophularia and Bryony, and whose ^ 

 I have never had the good fortune to meet with, but which should 

 occur on the same plants as the $ ; quadricinctus, which has occurred 

 of late years near Seaford and Eastbourne, and also on the cliffs at 

 St. Margaret's Bay on yellow composites ; longulus, Smith, of which 

 very little is known, and which occurs in the. Isle of Wight at 

 Bonchurch, Ventnor and Freshwater ; a good series of both sexes 

 would be a great assistance in determining its value as a species ; 

 Icevis, Kirby, which is still known as British only by the original 

 specimen in Kirby's collection, taken at Nacton, Suffolk ; it is so like 

 villosulus that it might easily be overlooked, but the impunctate body 

 will distinguish it at once, the thorax is shining and sparsely 

 punctured, very much as in that species ; maculatus, the ? of which 

 has occurred near Fairlight and at Weybridge and Blackwater, but no 

 male has been recorded from this country, and gramineus, which has 

 not been taken since Smith's time, when it was found on Cove 

 Common, Hants. Halictus is a genus which would repay study from 

 any collector, as the species are very closely allied, and there is great 

 probability of new species yet being found. 



Several of the rarer species of Andrena are to be found in July 

 visiting the flowers of brambles, these are chiefly the second 

 broods of the species which visit sallows in the early spring, but the 

 second broods are less numerous, as a rule, in individuals than the first ; 

 for instance, A. rosce, the typical form of which appears in July, used 

 to be considered a great rarity, and as a matter of fact, is far from 



