or 
126 Rev. F. D. Morice on 
eulis que humeralibus: pedes que (exceptis coxarum  basibus). 
Scutellum in exemplaribus hisce omnibus rufescit potius quam 
flavet: postscutellum omnino nigrum est. Segmenta abdominis 
dorsalia aut tota flava sunt, aut flavo-latissime fasciata, flavedine in 
medio non aut vix interrupta, sed in segmentis 1™ et 2% antice 
plus minusve emarginata vel excisa. Segmenti 1™ basis declivis 
tota nigra, etiamque incisurae duo punctiformes in ipso margine 
fasciae segmenti huius flavae. Segmentorum 2-5 fasciae flavae una- 
quaeque utrinque ante apicem suum punctum quoddam vel guttam 
nigram subovalem transversam includit. Pilositas corporis albida. 
Q. Mari similiter sed multo opulentius picta. Nigredo fere 
omnino deficit, vel in colorem rufum transit. Antennae usque ad 
apices testaceae (nusquam obscuratae) scapis antice flavis ; facies tota 
flava. Vertex inter ocellos posticos rufescenti-flavo biguttatus. 
Occiput in medio et pars temporum pone oculos colore simili. 
Mesonotum lateribus basique in medio flavis, etiam in disco utrinque 
vitta lineari rufa ornatur. Flavent quoque collare totum, meso- 
pleurae (mesosternum vero nigrum !), scutellum, postscutellum, 
propodei pars basalis, abdominisque fasciae (ut in ¢) latissimae, sed 
segmentorum 1 et 2 bases, itemque series supra descriptae macu- 
larum ovalium flavedine inclusarum in segmentis 2-5, rufae sunt 
(non nigrae). 
Long. g 15-17 mm., 9? 19 mm. 
SPHECIUS CLARIPENNIS, n. sp. 
Ae Sle Oe Biskra, all on Ammi visnaga, “eyes light 
yellowish green,” 18. v to 18. vi, 97. A. E. E. 
Big el 2. Biskra, 26. v, 98. F, D. M. 
6 fg. Biskra, 25. v to 3. winiess') EDM. 
The males are very like those of the last species, but 
seem to be on an average rather larger. They are easily 
separated by having entirely fulvous antennae, bright 
yellow (not reddish) scutellum,* and the bases of the 
abdominal segments more widely black, the yellow fasciae 
consequently being reduced so much as sometimes to 
encircle the black oval side-spots only behind, and later- 
ally allowing them to become confluent with the blackness 
at the base. These mere colour-characters by themselves 
might seem unimportant, and those of the abdomen are 
subject to variation within certain limits—in fact in some 
* Unless darkened by cyanide as in some of Mr, Eaton’s speci- 
mens, in which case the other yellow markings are reddened also. 
In all mine the scutellum is distinctly yellow. 
