13 
(Por 
XXII. Hymenoptera Aculeata from Majorca (1901) and 
Spain (1901-2). By EpwarD SAUNDERS, 
E.RS. With Introduction, Notes, and Appendix 
by Prof. Epwarp B. Pouton, F.R.S. 
[Read June Ist, 1904.] 
I. Masorca (1901). 
THE Majorcan Aculeates named and described by Mr. 
Saunders in this memoir were collected by Mr. W. 
Holland, of the Hope Department, Oxford, Mr. A. H. 
Hamm, of the same Department, and myself. The 
entire collection was made from June 26 to July 12, 
1901, in the neighbourhood of Palma, Soller and Pollensa, 
or in travelling between these places. 
On returning home with many thousands of specimens 
belonging to nearly all groups, including those obtained in 
a week’s hard work on the mainland, the expenditure of 
an immense amount of careful mechanical Jabour was 
necessary before the work of determination could begin. 
Interrupted by calls which could not be postponed, about 
eighteen months elapsed before I was in a position to 
submit the Aculeates to my kind friend, Mr. Edward 
Saunders, F.R.S., who has rendered such memorable help 
to the Hope Department on many occasions. 
The Majorcan Aculeates numbered rather over 3680, 
and of these about 2500 were in the first instance ex- 
amined by Mr. Saunders. The remaining specimens, 
which had been looked upon as duplicates of the com- 
monest species, were subsequently studied by him, and a 
few species of interest recovered from among them. 
It will be seen in his memoir that Mr. Saunders recog- 
nises five new species in this material :—Pompilus poultoni, 
Mimesa palliditarsis, Halictus dubitabilis, H. hollandi, and 
Hf, hammi. 
It is unnecessary again to describe the features of this 
beautiful island with its triple division into (1) level 
highly-cultivated plains, (2) mountains chiefly developed 
along the N.-W. coast, and (3) low marshy land on the 
N.-E. bordering parts of the bays of Alcudia and Pollensa. 
TRANS. ENT. SOC. LOND. 1904.—PART II. (SEPT.) 
