ARABIAN IIYMENOPTERA. 27 



entire ; imclcr side \^-itli a yellow quadrate spot near tbe base. Legs 

 yellow ; femora towards tlie base and coxre black ; four posterior tarsi 

 piceous towards the tips. Wings blackish ; veins black. Length of 

 the body 4h lines. 



Cairo. 



131. Crabro confinis. Male and female. — Black. Head Avitli 

 silvery tomentum in front. First and second joints of the antennae 

 yellow. Thorax ^Yith two yellow calli on the fore border and with 

 one on each side. Abdomen with three yellow bauds ; first and 

 second widely interrupted ; third entire ; under side wholly black. 

 Legs yellow ; femora towards the base and cox;b black ; tarsi with 

 piceous tips. Wings blackish ; veins black. Length of the body 

 2J— 3 lines. 



Cairo. 



132. Crabro rjerpusillus. Male. — Black, smooth, shining. 

 Head with silvery tomentum towards the mouth. Tibife and tarsi 

 piceous ; hind tibi;T3 yellow towards the base. Wings blackish ; veins 

 black. Length of the body ^J lines. 



Cairo. 



Genus EHOPALUM, Kirbi/. 



133. Ehopaluji FRATERXDii, Smith. 

 Cairo. 



Genus CERCERIS, Latr. 



134. Cerceris tyraknica, Smith, Cat. Hijm. iv. 447. 

 Dahleck. Tajura. 



Inhabits West Africa. 



135. Cerceris HisTRioNicA, Kill//, Symh. Phys. pi. 47, f. 9. 

 W^ady Genneh. Wady Ferran. Mount Sinai. 



136. Cerceris exoelleks, Kluy, Symh. Phys. pi. 47, f. 15. 

 Harkeko. 



137. Cerceris pulchella, King, Symh. Phys. pi. 47, f. 14. 

 Harkeko. Tajura. 



138. Cerceris vidua, Khuj, Symh. Phys. pi. 47, f. IL 

 Harkeko. Tajura. Wady Ferran. 



^ 139. Cerceris alboatra. Male. — Black, roughly punctured. 

 Front of the head with three large yellowish white spots ; first and 

 second spots elongated, longitudinal, with a yellowish white line 



