442 ARKIV FÖR ZOOLOGI. BAND 1. 



The posterior margin of the pronotuni slightly arcuate. 

 The median segment a little broader than long, rounded be- 

 hind and a little sinuated in the middle. 



The basal nervure on the fore-wings and the cnbital one 

 on the hind-wings interstitial. The third cnbital cell larger 

 than the second one and a little more triangulär. The an- 

 terior margin of the second cell longer than that of the 



third one. 



The legs with numerous short and long spines. The lon- 

 gest tibial spnr on the posterior legs a little longer than 

 the half of the metatarsus. The claws with a short tooth in 

 the middle. 



Length 13 mm. Exp. 25 mm. 



Fam. Crabronidae. 



Ampulex Jur. 



Jurine, Nouv. méth. class. Hymén. 1807, p. 132. 

 . Kohl, tTber Ampulex Jur. (s. 1) und die damit enger ver- 

 wandten Hymenopteren-Grattungen. Ann. naturh. Hofmus. 

 Wien. Bd 8, 1893, p. 455. 



A. dives Kohl. 



Kohl 1. c. p. 464. 



A single female. — The specimen is very agreeing with 

 the description published by Kohl. 

 Length 16 mm. Exp. 22.5 mm. 



Geographical Distribution. — Africa: G-abun. 



Scelipliron Klug. 



Klug, Neue Schriften Ges. naturforsch. Freunde, III. 1801. 



Se. spirifex L. 



Several females from Ekundu ( 22 /ia 1890). 

 This species is among the most common ones of the Cama- 

 roons. It builds its nest 1 of earth and loam on walls and 



x Conf. Lucas, Les Hyménoptéres in Exploration scientinque de 1'Algérie. 

 Zool. 3: 2, 1850, p. 273. 



