132 MR. CLAUDE MORLEY ON AFRICAN 



7. GRACILATOR, Sp. n. 



Face obsolete]}' punctate ; mesonotum apically simple ; meta- 

 notum striate and not dull, A\itli areola waiiting and transcarina 

 distinct tliougli fine; scutellum not longer than basally broad, 

 apically elevated and carinate tbroughont ; postpetiole slender 

 and very gradually explanate towards its apex ; legs testaceous, 

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

 J 5 . Differs from the last species solely in the presence of the 

 apical metanotal transcarina and the very slender postpetiole. — 

 A common species, of which I have seen a dozen examples from 

 the Durro Forest, Mabira Forest, and Buddu on the west shore 

 of the Victoria ISTyanza at 3500 to 4500 feet during July, Sep- 

 tember, and October, in Uganda ; and from a few miles east of 

 Mumias in the Maramas District of British East Africa at the 

 latter altitude in the middle of June 1911. 



8. STRIATOR, sp. n. 



Yery closely allied to the next species and differing from it 

 only in its simple mesonotal apex, its flavidous frontal orbits, 

 basally rufescent flagellar disc and somewhat shorter wings ; from 

 this and the whole remainder of the genus it differs in having 

 the head f idly as broad as the thorax and the metanotum strongly 

 trans-striate from its apical transcarina to base. Length, 15 mm. 

 5 only. — The type, which alone I have seen, was captured on 

 17th February, 1911, by W. A. Lamborn, in Lagos. 



9, BIPAPILLATOR, Sp. n. 



Face evenly punctate ; mesonotum apically elevated on either 

 side into an obtuse tubercle ; metanotum shining and trans- 

 striate, areola rectangular and obsolete, transcarina distinct ; 

 scutellum not longer than basally broad, apically elevated and 

 carinate throughout ; postpetiole stout and gradually dilated ; 

 legs testaceous, with hind tarsi nigrescent. Length, 15-17 mm. 

 J only. Instantly known in this genus by the apically bituber- 

 culate mesonotiun ; the large size, dark hind tai'si, and latei-aliy 

 somewhat rounded abdomen are also distinctive.- — The largest 

 species of the genus and apparently rare in LTganda, whence I 

 have examined four examples, taken by C. C. Gowdey, all at 

 Chagwe in the Mabira Forest between the 17th-20th July, 1911, 

 and on 3rd July, 1913. 



10. coLLiPER, sp. nov. 



Face irregularly punctate; mesonotvun apically simple; meta- 

 notum dull and not striate, ai-eola rectangular and obsolete, 

 transcarina wanting ; scutellum distinctly a little longer than 

 basally broad, apically elevated and carinate throughout ; post- 

 petiole slender and gradually dilated towards apex ; legs testaceous, 

 with hind tarsi entirely nigrescent. Length, 15 mm. c? $■ — A 

 very distinct species, differing from all the above in its iriegularly 



