Wasps of the Genus Tachytes. 23 



distance between the recurrent nervures on tlie cubitus 

 slightly greater than the second abscissa of the radius. 



Hub. Pretoria (^Distant). 



Very nearly related to T. argenteovestita, Cam., and T. bulu- 

 ivayoensis, Bisch., but differs from both in only having five 

 spines on the basal joint of the fore tarsus, instead of six as 

 in those species; it also differs from buluwayoensis in the 

 colour of the pubescence on the pygidial area ; and from 

 argenteovestita in the colour of the tarsi and in details of 

 neuration. 



^23. Tachytes buluwayoensis, Bisch. 

 Tachytes bultaoayoensis, Bisch. Arch, f, Naturges. A. 3, p. 68 (1913). 



? . Diff'ers from distanti in having six spines on tlie basal 

 joint of the fore tarsus, and in having the pygidial area 

 clothed with reddish-brown setae, 



Hab. S. Rhodesia, Bembesi; January. 



■^24. Tachytes argenteovestita, Cam. 

 Tachytes argenteovestita, Cam. Ann. Transvaal Mus. ii. p. 130 (1910), 



Differs from distanti in having six spines on the basal 

 joint of the fore tarsus, and in the much shorter second 

 abscissa of the radius, also apparently in the colour of the 

 tarsi. 



I am doubtful if Imluivayoensis is really distinct from 

 argenteovestita, the details of neuration as to the comparative 

 length of the abscissae of the radius being very unreliable 

 in this genus, and the other diff"erences given by BischofF 

 may be due to very slight inaccuracies in Cameron's 

 description. 



Hab. Transvaal, Pietersburg ; December. 



25. Tachytes dilaticornis, Turn. 



Tacht/tes dilaticornis, Turn. Ann. & Mag. Nat, Hist. (8) xvii. p. 446 

 (1916). J. 



5. ]Srigra ; capite argenteo - pubescente ; thorace segmentoqiie 

 mediano pallide et sparse aureo-pilosis ; abdomine laete aureo- 

 pubescente, segmentis dorsalibus fascia apicali densius aureo- 

 pvibescente, segmentis dorsalibus et ventralibus apice late brun- 

 neis ; tegulis fuscis ; alis flavis, apice latissime infumatis, vcnis 

 testaceis. 



