ARABIAN HYMENOPTERA. 23 



reddish tips. Wings cinereous ; veins black. Length of the body 

 4 lines. 



Wady Ferran. 



110. Tachytes decoratds. Female. — Black, with cinereous 

 tomentum. Head broader than the thorax ; face and palpi yellowish 

 white. Antennae red, subclavate, first joint yellowish white. Fore 

 border of the prothorax, tegulae and an abbreviated band at the 

 base of the metathorax yellowish white. Petiole red, with an 

 abbreviated yellowish white band on its hind border ; five posterior 

 yellowish white bauds, the first excavated on each side ; under 

 side with yellowish white lateral dots. Legs yellowish white ; coxae 

 red ; four anterior femora piceous, with a yellowish white streak 

 beneath ; hind femora black ; four anterior tibiae reddish beneath ; 

 hind tibiae black beneath. Wings pellucid ; veins black, reddish at 

 the base. Length of the body 4 Hues. 



Wady Ferran. 



111. Tachytes cephalotes. Male. — Black, with cinereous 

 tomentum. Head broader than the thorax ; front with gilded 

 tomentum. Mouth and first joint of the autennse red. Petiole 

 black, very short. Abdomen red, elongate-oval, black towards the 

 tip, not longer than the thorax. Legs red ; coxae black ; femora with 

 a black streak above. Wings pellucid ; veins pale testaceous, black 

 towards the tips ; stigma black. Length of the body 82 lines. 



Harkeko. 



112. Tachytes albonotatus. Female. — Deep black, punctured. 

 Front with silvery tomentum. Prothorax with four white dots on 

 the fore border. Tegulae white. Metathorax with a longitudinal 

 furrow, its hind part perpendicular. Petiole sometimes red. Abdo- 

 men elhptical ; first segment occupying nearly half the surface, its 

 hind border white ; a transverse white dot in the disk near the tip. 

 Tibiae with an elongated white spot above at the base; hind tarsi 

 with three white dots above ; four anterior tarsi whitish. Wings 

 blackish ; veins black. Length of the body 2i lines. 



Harkeko. 



113. Tachytes mutilloides. FemaJe. — Black. Head red 

 behind, pale gilded yellow about the eyes and in front. First joint 

 of the antennae white beneath. Thorax red. Pectus black. Abdo- 

 men fusiform, longer than the thorax ; three white bands ; first 

 interrupted and abbreviated ; second much excavated in the middle 

 part of its fore side ; third entire. Four anterior legs red ; fore 



