NOTES ON ACULEATE HYMENOPTERA. 41 



Parfitt informs me that he has captured specimens of each 

 of these very local and rare species. 



Crabro melanarius. Mr. Bold captured this species, 

 new to the British Fauna, in July, 1856, near Lannercost, 

 Cumberland ; it is described by Dahlbom in the first 

 volume of his Hymenop. Europ. page 339. 



Cerceris lalriata. This very local species was captured 

 in the beginning of August at Kingsdown, by my son 

 Edward Smith. 



Phylanthus triangulum. This very local insect is still 

 plentiful in Sandown Bay, where Mr. Un win found it last 

 July. 



Family Apid.e. Captures of Andrenice. 



Colletis marginata. This rare species was again taken 

 at the latter part of July along the south-west side of 

 the sand-hills near Deal ; the specimens were old and 

 worn ; the end of June is probably the best time to cap- 

 ture it. 



Sphecodes rufescens. A very remarkable specimen has 

 been captured by Mr. C. F. Allen, in which the anterior 

 wince has the second submarGfinal cell obsolete ; such oc- 

 currences are of extreme rarity amongst the bees, although 

 frequent in some groups of fossorial insects. 



Halictus maculatus. Mr. Parfitt has captured the male 

 of this species, near Exeter ; the female was taken by Mr. 

 Unwin in July, in Sandown Bay, Isle of Wight. 



We are now about to direct the steps of the Hymenopterist 

 to one of the richest localities, which during upwards of twenty 

 years we have had the good fortune to discover ; here appeared 

 to be the metropolis of all those autumnal species of extreme 

 rarity, which belong to the genus Andrena, and its close 

 ally Cilissa. We have always had a belief that the spring 

 species of Andrena were extremely numerous in individuals, 



