494 Mr. G. Meade-Waldo on 



entirely clothed with ferruginous pilosity. Scopa ferruginous. 

 Intermediate tarsi altogether and metatarsus iii. on the inside 

 clothed with ferruginous hair. Head subnitidulous, massive, 

 wider than the thorax ; clypeus Hat, twice as broad as long ; 

 mandibles thick, 4-toothed. The whole insect uniformly 

 covered with fine punctures, but only the head nitidulous ; 

 the thorax glabrous. 



1 ?• 



Length 20 mm. 



Hob. Nyasaland: Mlanje, 4. xii. 1912 (S. A. Neave). 



The following species have a strong superficial resemblance 

 to one another, owing to the general similarity in the colora- 

 tion of their pubescence. They may be separated as 

 follows : — 



Black ; rnetathorax with whitish and abdo- 

 men with a varying amount of whitish 

 and reddish pubescence; wings fuscous. 



1. (2) Head very massive. Length 20 mm. Cly- 



peus considerably broader than long; 

 mandibles massive, 4-toothed ; seg- 

 ments 2-6 clothed with reddish 

 pubescence ; scopa reddish M. mlanjensis, sp. n. 



2. (1) Head normal. Length 13-17 mm. 



3. (4) Clypeus with a longitudinal carina. 



Length 13 mm M. silverlocki, sp. n. 



4. (3) Clypeus without a carina. Length 15- 



17 mm M. nigrifacies, Vach. 



( = ? cradockensiSjFx.). 



M. chrysorrhoea, Gerst., and M. luangvjce, M.- Waldo (sub- 

 genus Eumegachile), belong to this group as regards colour- 

 pattern. 



Meg a chile {Eumegachile) sankisice, sp. n. 



2 . Nigra, cyliudrica, nitida, vix punctata, griseo-hirta ; mandibulis 

 intus aureo-, clypei lateribus, area postoculari, pleuris, metanoto, 

 abdominis fasciis apicalibus, pra?cipue lateribus, scopaque griseo- 

 pubescentibus ; tarsis intus pallide flavis ; alls subfuscis, basi 

 hyalinis ; mandibulis forcipatis, apice latioribus, vix deutatis ; 

 terg. 2 d ° et 3 tio sulcis transversis mediis instructis ; labro rugoso, 

 sulco longitudinali, lato, subnitido. 



Long. 15 mm. 



J . Similis § , sed tarsis anterioribus dilatatis coxisquo anteriori- 

 bus inermibus ; antonuarum articulo ultimo spatulato, acuto. 



Black, shining, especially the mesonotum and abdomen ; 

 mandibles within fringed with bright golden-brown hairs ; 



