NOTES ON ACULEATE IIYMEN0PTERA. 39 



inhabit the nest of the wood-ant, never constructing a nest of 

 their own ; one of these, Myrmica lucidula, has during the 

 past season been discovered by Mr. Waterhouse; this very 

 distinct and beautiful species is a fine addition to our Fauna, 

 it was found at Wey bridge, Surrey. 



Formica congerens. Only males of this species have 

 been obtained ; they were found amongst a few Hymenop- 

 tera taken in Scotland by Mr. Foxcroft in 1846; this is the 

 species in the nests of which Tinea ochraceella was discovered 

 by Nylander in Finland. 



Formica brunnea. This species has long been included 

 in the British list of Mr. J. F. Stephens, but in his cabinet 

 it was represented by the female of F. umbrata of Nylander; 

 amongst a number of ants collected at Deal we have dis- 

 covered a single female of this species. 



Ponera contractu. This rare insect we TieYer had the 

 good fortune to capture; Dr. Power, whose eye a novelty 

 cannot escape, took a couple of workers at Brighton. 



Myrmica unifasciata. A colony of this scarce species was 

 discovered by Mr. Baly ; it consisted of not less than 150 

 individuals; its formicarium was constructed in a decaying 

 post, at Lower Shorne, near Gravesend. 



Myrmica lippula. A single specimen was taken by Mr. 

 Beading, in July, near Plymouth, under a stone, amongst a 

 colony of F.fusca. 



The Myrmica graminicola of Smith's Essay, is synony- 

 mous with M. lippula. We have obtained a large number 

 of the Myrmica acervorum, and, after a careful examination, 

 w r e agree with Nylander in considering F. gr a mini cola a 

 variety of that species ; M. lippula is readily distinguished 

 from the other minute species of the genus by its small 

 eyes, and the long petiole of its abdomen ; we have taken 

 the female as late as November, on the wing, in the London 



