90 ¢... F. D. Morice on 
The following diagnosis indicates the chief structural 
characters which I notice in nitrariae. It will be seen 
that they agree to a surprising extent with those of a very 
differently-coloured species, viz. luctwosa, Costa. The latter, 
however, besides differing from aitvariae in colour, has a 
very much stronger and closer puncturation, as will be 
seen at once if the abdomens of the 2 2 in the two species 
are looked at side by side. 
2. Clypeus apice in medio acute bidenticulato. Carina inter- 
antennalis usque ad ocellum anticum prolongata. Propodei area 
media laevis, nitidissima, impressione lineari longitudinaliter divisa. 
Petiolus transversus, cum sequentibus 4 segmentis ante apicem 
evidenter impressus vel sulcatus (longitudinaliter), area pygidialis 
subovalis, apice et basi angustatis, deinde subtruncatis, lateribus 
subdense fimbriatis. Segmentum ventrale 2° basi hand elevatum, 
penultimum (quantum video) simplex. Punctatura mediocriter 
fortis, nusquam rugosa, intervallis punctorum subnitidis ; partim 
(e.g. in scutello) fere dispersa dici potest. 
Collare lateribus gibbose elevatis in medio depressum, angulis 
inferis spiniformibus. Antennarum articuli 3 et 4 latitudine sua 
plusquam duplo longiores. Flavescens vel partim albescens, verticis 
fascia lata antice biramose producta nigra. Nigra sunt etiam— 
occiput (non autem tempora) mesonotum cum parte pleurarum, 
propodei area media (nonnunquam etiam areae laterales partim), et 
segmentorumn abdominis dorsalium maculae basales subtriangulares 
(interdum obsolescentes). 
¢ feminae simillimus, crassius punctatus, flavedine magis 
restricta. Caput postice nigrum, pone oculos flavo binotatum ; 
thoracis latera tota (plerumque etiam propodeum totum) nigra ; 
abdominis fasciae flavae angustiores quam in 92. Antennarum 
articulus ultimus leniter curvatus, dein recte truncatus. Clypei 
margo apicalis evidenter dentatus. 
Oculorum margines interni in utroque sexu fere paralleli. Alae 
hyalinae apicibus fuscis. 
222,19. Biskra, “visiting Mitraria edentata,” 19. v, 
97, A. E. E. 
282,229. Biskra, on Ammi visnaga, 15. v to 8 vii, 97. 
KE. E. 
CERCERIS QUADRIMACULATA, Duf. 
1 2. Constantine, 16. vi, 94. A. E. E. 
629. Constantine, 14-18. vi, 98. F.D.M 
