Rev. F. D. Morice on Hymenoptera aculeata. 63 
kept by Mr. Eaton during bis stay in Algeria from Jan. 
1893 to Aug. 1897, giving much detailed information as 
to the plants visited by particular insects, their appearance 
and behaviour during life, ete., ete. Occasionally (but 
very seldom) a remark of Mr. Saunders’s own was added ; 
and these seemed generally not intended for publication, 
but merely to identify a particular specimen about whose 
treatment he had not made up his mind (e.g. “Sp. ? under 
: age a ; 
arenarum in my box”; “ Large insect (like emarginata) ” ; 
“ Black wings!”; “Stylopised”; “Determined for me by 
Kohl”; etc.). The list was evidently written quickly, 
with many abbreviations, notes of interrogation, etc., 
sometimes in ink, sometimes in pencil or blue chalk, and 
blank spaces left for subsequent insertions of names, dates, 
authorships of species, and the like. In fact it has the 
appearance of a “rough draft” intended to assist him in 
preparing his final “copy,” and would scarcely be intelli- 
gible to another person apart from the actual collections 
to which it refers. But by working carefully through it 
with those collections,* and also with Mr. Eaton’s original 
diary—the latter having been placed in my hands along 
with all Saunders’s entomological MSS. after his death— 
I believe I have been able to incorporate its substance in 
this paper, very nearly in the shape in which its author 
intended to publish it. 
This MS. list, then, compiled by Mr. Saunders, supple- 
mented by additional records of my own captures, and re- 
vised and emended as to certain details after comparing it 
with the labels attached to the actual specimens referred to 
and verifying its citations from Mr. Eaton’s diary, forms the 
nucleus of the present paper. The parts of it for which 
I am solely responsible—besides the above purely editorial 
work—are these. (1) The introductory remarks, viz. every- 
thing preceding the list itself. (2) All descriptions of new 
or otherwise remarkable forms—Saunders’s own work of 
this kind having appeared already in the 1910 volume of 
these Transactions. (8) The arrangement in order of the 
Genera represented, and the occasional addition of sub- 
generic names in brackets. In all such matters I have 
* The authorities of the Natural History Museum, who now 
possess all the Hymenoptera of the Saunders Coll., most kindly 
allowed the Sphegidae to remain in my charge till this paper should 
be completed. Otherwise it would have been practically impossible 
for me to write it. 
