98 [April, 



distinctus, D. and S., P. Reuleri, Sa«ncl., Macrolophus nubilus, H.-S., Orthotylus 

 diaphanus, Khm., on willows, Cyrtorrhinus caricis,Fed\.,PsaU.its Rotennundl, Scholtz, 

 white poplar. It is to be hoped that Mr. Stanyon will continue his researches, as he 

 will doubtless thereby add considerably to our knowledge of the Midland Hemiptera. 

 —Edward Saunders, 27, Granville Park, Lewisham, S.E. : March 9th, 1895. 



Andrena albicans, Kirh., and Nomada bifida. Thorns. — Mr. K. J. Morton kindly 

 sent me a few weeks ago some examples of Andrena albicans and Nomada bifida 

 taken by himself in the Isle of Arran. As these were the only two species he sent 

 I thought that probably they had been taken in the same spot, and on writing to 

 him I find that this was the case ; he tells me that he feels sure that they were 

 associated. If this be so, which is highly probable, it determines the host of N. 

 bifida, which was doubtful before ; N. bifida is a common species, and appears early 

 in the spring, frequently occurring at sallow blossoms, so that its association with 

 Andrena albicans seems natural and probable from all points of view. We have 

 still three species of Nomada whose hosts are doubtful, or unknown, viz. : N. 

 Hoherjeotiana, a very rare species, and therefore affording few opportunities for 

 observation ; N. solidaginis, a most abundant species in some localities, occurring in 

 July and August, which F. Smith held to be the inquiline of Halictus ruhicundus 

 and leucozonius, but the hibernating habits of the ? Malicti make it improbable 

 that any Nomada should associate with them ; and N.furva,a, very common species 

 also, supposed to associate with small Halicti. Any observations on the habits of 

 these three species would be very valuable ; two of these are sufficiently common to 

 offer ample opportunities for investigation, and if these are really associated with 

 Halictus, there must be a very curious and interesting life history to be worked 

 out. — Id. 



Andrena amhigua, Perkins, in Norfolk. — Mr. Perkins, in our February number 

 (p. 39), describes this species from specimens which he took in Devonshire, near 

 Moreton Hampstead, and says that he had received a single <J from King's Lynn, in 

 Norfolk ; I have received two females, which undoubtedly belong to the same species, 

 from Tostock, near Bury St. Edmunds, taken by Mr.W. H. Tuck; and I have a single 

 <? , without any label as to locality, which I believe I received from Mr. Bridgman 

 many years ago. If I remember rightly, he sent me two males which he thought 

 were distinct, but I failed then to see any character by which to distinguish them 

 apart, and put them both with my series of varians. I have two specimens now, 

 both well set, which I believe to be the two in question. One of these is varians, $ , 

 the other, ambigua, $ ; the difference in the respective lengths of the 2nd and 3rd 

 joints of the flagellum, as mentioned by Mr. Perkins, is a very easily detected 

 character. The ? is like varians in the black haired face, but at first sight may be 

 known from it by the whitish hairs on the abdomen, like those of helvola. I think 

 ambigua will probably prove to be a widely distributed species. — Id. : March llth, 

 1895. 



Abnormal alar neuration in a Pompilus. — Mr. W. H. Harwood has lately sent 

 me a few Aculeate Hymenoptera to identify, and amongst them is a most interesting 

 specimen of Pompilus consobrinus ; this species, which is a rare one, has an unusually 



