1917.] 13 



mesopleural red mai*kings of the thorax are less extensive in the larger 

 species. 



The male of neither species has a specialised clothing of hairs 

 on the propodeuni (such as is seen in the female of flavoguttata) , but 

 they greatly resemble each other. In typical examples, both the scape 

 of the antennae in front (as well as behind) and the labrum are black, 

 or almost so, in flavoguttata, and even if the labrum is largely yellow, 

 the scape is generally black in front. In conjungens neither the 

 labrum nor the front of the scape is black. But examples of 

 flavoguttata are sometimes found with both the scape (in front) 

 and the labrum pale, and then the resemblance to small examples 

 of conpmgens is exti'eme. Fortunately, one slight, but in Nomada 

 very important, character remains to differentiate the species. In 

 flavog^dtata the posterior surfaces of the front and middle femora 

 are much more conspicuously clothed with hairs, so that, viewed 

 from in front, in certain aspects, these have a distinct and fairly 

 long fringe of hairs beneath, but in conjungens these fringes ai-e 

 almost entirely absent, though on close inspection very short hairs 

 may be seen, and on the front femora a few longer ones. Still more 

 easily may conjungens be separated by this character from any of the 

 ruficornis group, some species of which it greatly resembles super- 

 ficially, though not really allied to them. I believe the genital arma- 

 ture is practically the same as that of flavoguttata. 



All the specimens taken by Chitty were labelled " Huntingfield " 

 [Kent] and some at least were captured on the same day as examples 

 of Andrena proxima, its host. The dates of capture are in the last 

 week in May, and the first half of June. 



Pai^ton : 



November, 1916. 



Wicken Fen. — The Council of the National Trust appeals to naturalists 

 interested in the preservation and upkeep of AVicken Fen to assist to defray the 

 expenses of the Watcher who guards the property against abuse, and performs 

 the duties of Forester generally. As entomologists, we are, perhaps, more 

 concerned for the integrity of the fenland than any other workers in the field 

 of Science. I am asked, therefore, to invite subscriptions and donations for the 

 purpose indicated. The amount required is not large, and I shall be happy to 

 receive contributions, however small. Cheques and postal orders should be 

 crossed " London and South Western Bank, Bloomsbury Branch, Wicken Fund," 

 and made payable to me. — H. Rowland-Brown, Hon. Treasurer for Wicken 

 Fund, Oxhey Grove, Harrow Weald, 



