Records of Bees. 279 



yellowish-white hind tibial spurs are very much larger ; the 

 middle tarsi are shorter, especially the last joint; the face 

 (covered with white hair) is a little broader. Tarsi and 

 coxse of anterior legs simple. 



Hah. Mackay, Queensland (Turner, 325). British Museum. 



The hind spur is 595 /j, long, minutely serrulate. That of 

 M. rhodura measures about 425 /a. 



Megachile mackayensis, sp. n. 



$ . — Length about 12 mm. 



Black, of the parallel-sided type, the hair of front, sides of 

 face, and a large patch covering the fifth and sixth and more 

 than apical half of fourth segments of abdomen, all very 

 bright fox-red. Head round seen from in front ; mandibles 

 broad, deeply grooved ; clypeus densely rugoso-punctate, 

 short but arched and prominent, the lower margin crenulate ; 

 antennae wholly dark ; eyes dark reddish ; vertex very finely 

 and densely punctured, with fuscous hair (some fulvous 

 posteriorly) ; cheeks with white hair ; mesothorax and 

 scutellum very closely punctured but shining, the hair of 

 scutellum and front and sides of mesothorax fuscous, but on 

 disc of latter mainly yellowish, though very thin and incon- 

 spicuous ; a tuft of creamy-white hair is at each posterior 

 corner of mesothorax, and a larger one just behind tubercles, 

 though the hair on the latter is black; hair of uppermost 

 part of pleura black or fuscous, otherwise dull white ; sides of 

 metathorax with much creamy-white hair; tegulse piceous. 

 Wings moderately dusky ; second s.m. very long. Legs 

 black, with white hair, that on the inner side of the moderately 

 broad hind basitarsus fulvous ; spurs brown, hind spur bent 

 at apex. Abdomen above, except for the large red patch, 

 black without bands or spots ; ventral scopa creamy white, 

 dark fuscous on last segment, and penultimate except at base. 

 Resembles M. erythropyga, Smith, but the red abdominal 

 patch is larger, and the basal segments have no white hair- 

 bands. 



cf. — Length about 10 mm. 



Face and front covered with bright rufo-fulvous hair; flagel- 

 lum long and slender, black; anterior tarsi simple; anterior 

 coxse not spined ; second and third abdominal segments with 

 the hind margins narrowly reddish, and at sides covered with 

 bright rufo-fulvous hair, forming narrow bands ; red patch 

 covering fifth segment, basal half of sixth, and apical two-fifths 

 of fourth; apex (sixth segment) obtusely bilobed. Compared 

 with M. erythropyga the head is smaller, the mesothorax more 



