334 On the Apidse in the British Museum. 



(S similis, sed hirsutior ; tarsis anticis simplicibus, tergite apicali 

 concavo, apice rotuiide bilobato ; tergitibus 4 apice et 5 rufo- 

 aurantiacia. 



Long. 11 mm. 



Black, the inner orbits, prothorax, and postscutellum with 

 pale fuscous hair ; postorbits, pleuras, and four spots on 

 raesonotum with whiti-sh pubescence ; basal tergite with some 

 long pale hair, tergites 2-i with apical fasciaB of pale scale- 

 like hairs, rather broken in the middle. Ventral scopa white. 

 Legs sparsely clothed with griseous pubescence ; tarsi reddish 

 within, Tergite 6 (and sometimes tergite 5 at apex) densely 

 clothed with ferruginous-red pubescence. 



Mandihles massive, the cutting-edge irregularly serrate, 

 the base without distinct sculpture, but with two conspicuous 

 carinje converging towards tiie apex. 



Clypeus flat, subquadrate, the apex truncate. 



The head and thorax are covered with fine even punctures, 

 the thorax with somewhat coarser granular punctures ; tergites 

 2-4 have distinct transverse sulci towards the base. 



Wings suffused with fuscous. 



Length 11 mm. 



(J . Very similar to ? in general appearance, but with 

 much longer hair j the pale markings on abdomen are 

 entirely lateral ; the reddish-ferruginous pubescence is on 

 tergites 4 (apically) and 5. Anterior tarsi simple, apical 

 segment of abdomen roundly bilobed. 



Length 11 mm. 



S.W. Australia: Yallingup, Nov. 1913-Jan. 1914; 

 Busselton, Jan. 1914 {R. E. Turner). A long series of 

 females and five males. 



Comes very near to M. ferox, Smith j for differences see 

 Jcey to the species. 



Thaumatosoma, Smith. 

 Thaumatosoma duhoulayi, Smith. 



S.W. Australia: Yallingup, 14. x. 1913 (1 S) and 

 1. xi. 1913 (1 ? ) {R. E. Turner). 



This is the first-recorded female in this interesting genus, 

 the four species known at the present time being all described 

 from males. 



For a key to the species see Ann. & Mag. Nat. Hist. (8) 

 xii. p. 492 (1913); T. testaceicorne, Cam, (1908), described 

 from Matheran, N. India, is omitted from this key. 



