the Apidte in the British Museum. Alf) 



sides of the emargination produced to form two tubercles ; 

 maudiblcs massive, 4-tootbed. Whole insect somewhat 

 sparsely aud evenly punctured, metatarsus iii. broader than 

 tibise. 



Length 15 mm. 



^ . Similar to female^ but smaller. Face and clypeus 

 clothed with pale hair. First joiut of anterior tarsi dilated, 

 anterior coxse armed with spines. 



2 ? ?,1 c?. 



Gambia (F. Smith Coll.), (^ ? (type) ; Zungeru, N. Ni- 

 geria {Dr. W. Morrison) , $ . 



Most nearly allied to M. bituberculata, l^'\ts.,=f>jdstedti, 

 Fr., but at once separated from that species by the red legs 

 and black ventral scopa. The species bore a MS. laljcl 

 " cyanipennis, Guer./' in F. Smith's Coll., and it certainly 

 bears a superficial resemblance to that species. 



Key to the Australian Species of Megachile described 

 by F. Smith. 



22. 



1 . f Clypeus very sliort, 3-4 times as broad 

 I as long, more or less armed with tu- 



J bercles at apex. Scopa pale, black 



] species with pale pubescence 2. Subg. Eumegachile. 



I Clypeus normal, 1-2 times as broad as 



1^ long ; variously coloured insects .... 5. Subg. Megachile. 



2. f Clypeus truncate, the apex armed with 

 I a small tubercle or tubercles 3. 



Clypeus with a broad, medic-apical, sub- 

 quadrate lobe, or else porrect, with the 

 I apex semicircular ; wings fusco-hya- 

 l^ line 4. 



3. f Apex of clypeus with small lateral tu- 

 bercles ; head very massive ; wings 

 fuscous ; abd. tergite 1 witli white 

 pubescence ; scopa pale testaceous. 

 L. 21 mm. (Champion Bay.) monstrosa. 



Clypeus with a small medio-apical 



tubercle ; head normal ; wings fusco- 



hyaline ; abd. tergites 1 and 2 with 



white pubescence ; scopa pale yellow. 



i^ L. 18 mm. (Adelaide.) . , semiluctuosa. 



4. f Apex of clypeus with a broad, medio- 

 apical, subquadrate lobe; face covered 

 with dense golden pubescence ; abd. 

 tergite 6 with silver-grey pubescence. 

 L. 13 mm. ("New Holland.") .... aurifrons. 



Clypeus porrect, the apex semicircular ; 

 face sparsely clothed with grey hairs ; 

 abd. tergite 6 with golden pubescence. 

 1^ L. 12 mm. (Champion Bay.) unsutn. 



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