On new Species c/Apidae. 491 



castaneous, postcoital margin, apical and inner margins 

 narrowly fuscous, bases of first, second, and third apical 

 areas infuscated ; wings with narrow fuscous margins as in 

 tegmina, the venation pale castaneous ; ulnar areas to 

 tegmina about half as long again as apical areas ; rostrum 

 reaching the intermediate coxa3 ; face broad, narrowly 

 centrally sulcated, the transverse ridges acute ; anterior 

 femora strongly spined beneath. 



Long., excl. tegm.j ? 31 mm. ; exp. tegm. SG mm. 



Hab. N.W. Australia, Cue (77. W. Brown, type in Brit. 

 Mus.). 



LXT. — Four neio Species of Apida? (llymenoptera), with 

 Notes on other Species. J3y Geoffkey Meade- Waldo, 

 M.A. 



(Published by permission of the Trustees of the British Museum.) 



In the following paper four new species of Apidse (subfam. 

 Alegachilinre) are described. The most interesting addition 

 is Thaumatosoma lurneri, which brings the number of species 

 in this curious genus up to three, all described from the male 

 sex. Three species of Megachile are also described from 

 Tiopical Africa. A number of notes on various species and 

 points in synonymy which have arisen at various times are 

 published now for the first time. 



All types are in the British Museum, except where stated 

 to the contrary. 



Thaumatosoma, F. Sm. 



Thuumatosoma tumeri, sp. n. 



d . Niger, punctatus ; antennis infra mandibulisque flavis ; capite, 

 thorace pedibusque plerumque albido-pilosis, abdominis seg- 

 ments 1-3 fasciis apicalibus interruptis albidis ; abdominis seg- 

 mentis 4-6 plerumque ferrugineis, segmento sexto apice dentibus 

 parvis instructo ; alis hyalinis. 

 Long. 7 mm. 



S . Black; antennae beneath (except the spatulate thirteenth 

 joint) and mandibles yellowish ; anterior legs on the inner 

 side, tergites 4 and 5 apically, both tergite and sternite 6 

 wholly red ferruginous. Face and clypeus covered with a 

 long and dense, postorbits with a sparser, whitish pile; ante- 

 rior margin of prothorax with two small spots of pale pubes- 

 cence; pleura and surface of truncation of median segment 

 somewhat densely clothed with pale pubescence. Abdomen 



35* 



