17 
Another little set of 20 black-bodied insects, with a broad 
red band across the abdomen, affords an even more striking 
proof that the members of such mimetic groups exist inter- 
mingled ; for the whole of them were captured (July 15, 1901) 
by the Professor in a single sweep of the net, near the summit 
of Montserrat, near Barcelona. Nineteen of the specimens 
were found by Mr. Saunders to belong to five superficially 
similar species of the genus Sphecodes (S. fuscipennis 1, 
S.zibbus 3, S. subquadratus 7, S.reticulatus 7, S.rufiventris 1). 
The twentieth member of the group was a beautifully mimetic 
fly, Ocyptera brevicornts. All these little bees were males and 
therefore stingless, a fact which suggests that the Aculeata 
possess some other defence in addition to that from which 
their name is derived (Trans. Ent, Soc. Lond.,’ 1904, 
pp. 644-649). 
Other specimens added to the Bionomic series were 
Majorcan examples of Fossorial wasps and their prey :— 
viz. two examples of Philanthus triangulum together with 
the honey-bees which they were carrying off to their nests 
as food for their larvae, and one of Pompilus viaticus together 
with the spider it was dragging along, 
Other smaller groups in addition to the Hymenoptera 
Aculeata have also been worked out, catalogued, and in- 
corporated: viz. 11 Majorcan Chrysididae (Hymenoptera), 
named by Rev. F. D. Morice, M.A., Queen’s College; 12 
Majorcan and 29 Spanish Aszlidae (Diptera), named and 
incorporated in the collection by Col. J. W. Yerbury; 18 
Majorcan Slattidae and 1 from Spain, named and_incor- 
porated by Mr. R. Shelford, M.A. 
Further contributions to the bionomic series have also been 
catalogued and incorporated. They include the following 
examples of insects and their enemies, captured in Spain and 
Majorca in 1901. The Reduviid bug, Harpactor tracundus, 
devouring the bee Hlalictus scabiosae (near Soller, Majorca, 
July 4), captured and presented by the Professor; the same 
species devouring the ‘hair-streak’ butterfly Thecla ilicis 
(Montserrat, near Barcelona, July 14)—Mr. W. Holland: 
D 2 
