THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTOKY. 



[EIGHTH Sli^RlES.] 



" perlitoraspargite museum, 



Naiades, et cireiim vitreog consitiite foutes.; 

 Pollice virgineo teneros hic carpite flores : 

 Floribus et picUim, divse, replete canistrum. 

 At V09, o Nymphse Craterides, ite sub undas ; 

 Ite, recurvato variata corallia truncso 

 Vellite rauscosis e rupibus, et mihi conebas 

 Ferte, Deae pelagi, et piii{;ui conchylia sueco." 



N.Parthenii Giannettasi, Eol. 1. 



No. 115. JULY 1917. 



I. — A Revision of the Wasps of the Genus Tachytes inhabiting 

 the Ethiopian Region. By Kowland E, Turner^ F.Z.S., 

 F.E.S. 



The following notes on tlie Ethiopian species of Tachytes 

 are based on the collection in the British Museum, Mhich is 

 rich in species from Nyasaland and Uganda, but poor 

 in species from West Africa and the. dry regions of South 

 Africa. The species run very close, and are most easily 

 distinguished by the distance between the eyes on the vertex, 

 the sculpture of the vertex, the shape of the pygidial area in 

 the female, and of the seventh tergite and eighth sternite 

 in the male, by the colour and distribution of the pubescence^ 

 the colour of the legs, and by the number of spines on the 

 basal joint of the fore tarsus. In some of the larger females 

 the sculpture of the second and third sternites is also 

 important. The mouth-parts might also be of considerable 

 use, but I have not had sufficient material available to use 

 them as extensively as I could wish ; there is, however, 

 considerable variation in the palpi, in the length of the 

 galea, and in the form of the ligula. The details of neura^tion, 

 Ann. <& Mag. N. Hist. Ser. 8. Vol. xx. 1 ^ 



