ICHNEUMONINiE IN THE BRITISH MUSEUM. 131 



Neave in the Durro Forest at Toro, on Mount Kokaiijero to the 

 S.W. of Elgon, at Mbnvara in southern Toi'O, the Bugoma Forest 

 at Unyoro, and in nortliern Buddu at altitudes ranging fi-oni 

 3500 to 4500 feet during July and October. 



4. TItUNCATOR, Sp. n. 



• Face obsoletely punctate ; niesonotuni apically simple ; meta- 

 notum dull and not striate, with both areola and transcarina 

 wanting ; scutellum not longer than basall}' broad, apically de- 

 pressed and there abruptly truncate though not carinate ; 

 postpetiole slender and gradually dilated ; legs testaceous, with 

 hind tarsi infuscate towards their apices. Length, 12-14 mm. 

 (5 2 • 1''^^ only species with apex of scutellum truncate. — I have 

 seen but a single pair, of which the male is from the Mabira 

 Forest by Chagwe in July, and the female from Mbarara in 

 southern Toi'o during October, both at about 3800 feet in 

 Uganda. 



5. iNERMis Mori. 



Face evenly punctate ; mesonotum apically simple; metanotum 

 dull and not striate, areola rectangular and obsolete, transcarina 

 wanting; scutellum not longer than basally broad, apically 

 elevated and carinate throughout ; postpetiole slender and 

 gradually dilated ; legs testaceous, hind tai'si infuscate towards 

 their apices. Length, 12-14 mm. c? § . — This is the first of a 

 homogeneous group of species with the scutellum itself somewhat 

 flat, though the stout carina, which entirely surrounds its apex, 

 is distinctly elevated and conspicuous ; fi'om its allies, the rectan- 

 gular and dull areola will distinguish it. — It was first described 

 by me in the female sex from Cape Colony, whence it appears to 

 extend as far as Uganda and British East Africa, in both of which 

 its range is co-extensive with that of X. rotundator ; I have seen 

 ten examples from the Mabira Forest, the Budongo Forest, near 

 Unyoro, Entebbe, Ilala in the Maramas District at 4500 feet, 

 and from the S.E. slopes of Mount Kenya between 6000 and 7000 

 feet during March, June, July, Febi nary, and December, 1911 

 to 1914. 



6. EXPLANATOR, sp. n. 



Face obsoletel)^ punctate ; mesonotum apically simple ; meta- 

 notum shining and trans-striate, with both areola and transcarina 

 wanting ; scutellum not longer than basally broad, its apex 

 elevated and carinate throughout ; postpetiole subcircular and 

 abruptly explanate basally ; legs testaceous, with hind tarsi 

 infuscate towards their apices. Length, 14 mm. (S only. — Dis- 

 tinct in the finely trans-striate metanotum Avhich it shares with 

 the next species, and unique in the abrupt dilation of the post- 

 petiole. — 1 have only seen the type of this species, which was 

 captured in the Gold Coast by W. P. Lowe and presented to the 

 British Museum in 1911. 



9* 



