Hymenoptera aculeata collected in Algeria: the Sphegidae. 105 
clear testaceous. The front metatarsi with a comb of 
seven long pale spines, the two basal ones shorter than 
the others.” 
TACHYSPHEX PSAMMOBIUS, Kohl 
1 . Constantine, “ visiting Hehiwm caeruleum,” 16, v. 95. 
A. E. E. 
TACHYSPHEX CAPITALIS, Saunders } 
Described in Trans. Ent. Soc. 1910, Part IV. 
Oe Biskra: 9! vir 98.0" FD, M, 
TACHYSPHEX PIAGETIOIDES, Saunders 
Described in Trans. Ent. Soc. 1910, Part IV. 
io. Biskray 12>vi.98..- Ho. MM. 
TACHYSPHEX, sp. ? 
3 $2, probably belonging to one species, and unde- 
scribed ; but without the other sex, and possessing as they 
do no striking characters, it seems impossible to deal with 
them satisfactorily. 
Biskra, 6.—12:'v, 98. F. D. M. 
TACHYSPHEX, sp. ? 
A single f with the antennae evidently deformed. 
Biskra, 14: vy, 98.2 2. D.: M. 
ANCISTROMMA EUROPAEA, Mercet 
19. Azazga (at an altitude of 1600 feet), 22. ix, 93. 
A. E. E. 
This species, and also the Genus to which it is referred, 
are very recent additions to the Palaearctic Fauna. Both 
were introduced along with a second species (A. maligna) 
by Sefior Mercet in February 1910. Mr. Eaton’s specimen 
was taken some years before the earliest capture yet re- 
corded of a Palaearctic Ancistromma, and is also (I believe) 
the only one hitherto recorded as occurring elsewhere than 
in Spain. Previous to 1910 the genus was known only 
as North American ; and it was first established (by W. J. 
Fox) in 1903—the same year in which Mr, Eaton made 
his capture! (Cf. Kohl Die Gattungen der Sphegiden, 
Genus 38.) 
