Ueonuh of lic^s. 2^\ 



sixtli «('<,'moiil) Itroudly lomiiK-cl, Hli<j;litly croniilate, ^voakly 

 einar;;iiiatc in mitldk', with a dcpn'ssidrj or pit just in tVoiit 

 of the einar<;iiinti()n ; no ventral spine. 



/lah. Cairns, Queensland, " Kur. 1. 02 " {Turner). Hritisli 

 Aluseuin. Mr, 'I'urnrr took Af. ustulttfd, Sni., ?, and M. 

 v<ysiacea (Fabr.), ^J , also at Kuranda. 



I do not think .)/. ustuhiti/onnis can he the male of ustulatii, 

 because the female ustuiuta, a^^reeinor perfectly with Smith's 

 ilescription aiul my notes from Smitli's type, has the shining 

 vertex with large widely scattered punctures. It also has 

 the wini^'s darker, the second s.m. longer and the marginal 

 cell deep'jr than in ustulafi/orini's. 



Megachile micrerythrurd, sp. n. 



$ . — Length 7 mm. 



Not so robust as M. ahdominaUs ; head and tliorax black, 

 abdomen red, the colour tegumentary ; hair of head and 

 thorax scanty, white, a little yellowish on vertex ; mandibles 

 black, tridentate, not ver}' broad; clypeus and supraclypeul 

 area shining but closely punctured; the disc of the broud 

 short clypeus with a pair of low mammiform protuberances; 

 flageilum dark reddish beneath ; vertex, mesothorax, and 

 scutellum very densely rather coarsely punctured ; tegulie 

 very dark reddish. Wings clear, nervures and stigma 

 reddish brown ; legs black, with light hair, small joints 

 of tarsi bright ferruginous ; abdomen well punctured, with 

 scanty short yellowish hair, not forming bands or spots; 

 ventral scopa entirely creamy wiiite. 



Allied to M. ahdoviinalisj but smaller and narrower, with 

 proportionately longer eyes, and other differences. In size 

 and shape it resembles M. semicandtns, C'kl!. 



^. — Looks like the female; face covered with shining 

 white hair ; anterior tarsi simple ; anterior coxie not spined; 

 middle and hind tarsi and small joints of anterior ones red ; 

 thorax above with six white hair-spots, one at each corner of 

 mesothorax, and two in scutello-mesothoracic suture ; abdo- 

 men red, with the lower border of basin of first segment 

 broadly black ; apex (sixtli segment) broadly emarginate or 

 very obtusely bilobed (in semicandens it is bidentate) ; no 

 ventral s})ine. 



Hub. Port Darwin, Nov. and Dec. 1902, 1 ? , 2 cT {Tar- 

 ner). British Museum. 



The cheeks in the female are narrower than the eyes and 

 rough ; in abdoniinalis they are broader and shining. Super- 

 ticially this s|>ecie8 looks just like Osinia seniirubru. 



Ann. tt- May. X. Hinl. Ser. ii. JW. vi. ly 



