Hymenoptera aculeata collected in Algeria: the Sphegidae. 99 
nunc hac, nune illa, modo apparente, modo oculos fallente). Area 
pygidialis pilis rufescenti-aureis vestita. 
g. Pilositas dispositione similis, sed pallidior; neque argenteo- 
(facie excepta) neque aureo- tam distincte ac conspicue quam in 9 
micans. 
Long. 17 mm. (¢ )-22 mm. (? ). 
1 7, 1 9. Bone, on Statice, 30. vii, 97. A. EK. E. 
2274, 1. Bone, visiting Cynanchum acutum, 17. 18., and 
20. vii, 97. A. E. E. 
Mr. Eaton has noted that in life the eyes of the ? are 
greenish, those of the ¢ “ pitch-black.” 
TACHYTES MACULICORNIS, Saunders 
Described in Trans. Ent. Soc. 1910., Part IV. 
2 $4,1 9. Biskra, on Ammi visnaga, 24. and 28. v and 19. 
yi, 9%. AEE. 
S 5,0 29%. Biskra; 18.v to 4. vi; 98,, .F. D. M. 
The ¢ taken by Mr. Eaton was stylopised. 
TACHYTES AENEA, Saunders 
Described in Trans. Ent. Soc., /. ¢. 
2 ¢¢. Biskra, “near railway, kilom. 199,” 25. iv, 97. 
A. E. E. 
TACHYTES FREYGESSNERI, Kohl 
38 4. Bone, “on sandy ground,” 29. vii, 97. A. E. E. 
229. Médéa, on Daucus setifolius, 30. vii and 2 viii, 93. 
A. E. E. 
229. Biskra, on Ammi visnaga, 18, vi and 2. viii, 97. 
A. E. E. 
“ Hyes of f dull green”... “eyes of 2 green” (A. E. E. 
MS.). 
TACHYTES BISKRENSIS, Saunders 
Described in Trans. Ent. Soc., 1. ¢. 
1 3,19. Biskra, on Ammi visnaga, 22. vi, 97. A. E. E. 
(In the Coll. the # is accidentally ticketed as a 9.) 
TACHYTES SIMILLIMA, Kohl 
394,499. Biskra. “Eyes caesious, visits Zizyphus 
(abusincoxdy, Oi A 
OFidew poe Biskra; 9.cy-L1.vi, 98.;. FD: M. 
H 2 
