'X\4: On the Apidai in the British Museum. 



(S aimilis, sod hirautior ; tarsis anticia simplicibus, tergite apicali 

 coiicavo, apioe rotunde bilobato ; tergitibua 4 apice et 5 rufo- 

 nuraiitiacia. 



Long. 11 ram. 



Black, the inner oihits, protliorax, and postscutellum with 

 pale t'uscous hair ', postorbit^^, pleurie, and four spots on 

 mesonotiim with whiti:<h j)iibescence ; basal tergite with some 

 long pale hair, tergites 2-4 with apical fasciaj 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) denselj 

 clothed with ferruginous-red pubescence. 



Mandibles massive, the cutting-edge irregularly serrate, 

 the base without distinct sculpture, but with two conspicuous 

 parinae converging towards the apex. 



Clypeus flat, subquadrate, the apex truncate. 



The head and thorax are covered with fine even punctures, 

 the thorax with son^ewhat coarser granular punctures ; tergites 

 2-4 have distinct transverse sulci towards tlie base. 



Wings suffused with fuscous. 



Length 11 mm. 



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

 much longer hair ; 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-J:ui. 1914; 

 Bugselton, Jan. 1914 {li. E. Turner). A long series of 

 females and five males. 



Comes very near to M. ferox, Smitli ; for differences see 

 key to the species. 



THAUMATOSOMA, Smith. 

 lliaumatosoma 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. 



