3 66 the entomologist. 



Megachile derelicta, sp. n. 



5 . Length about 12 ram,, anterior wing nearly 7, the wings 

 relatively short ; black, elongated and parallel-sided, the abdomen 

 widest at fourth segment ; hair of head and thorax rather scanty, but 

 conspicuously white at sides of face, around the shining tubercles, on 

 under side of thorax and on metathorax ; on the broad vertex, the 

 mesothorax and scutellum, the thin hair is pale fuscous-tinted ; head 

 rather large, with broad cheeks ; clypeus short and broad, the lower 

 edge straight, but above the edge is a pair of large semicircular 

 shining hollows, each one surmounted above by a small tubercle, the 

 median space between the hollows occupied by a large tubercle ; 

 upper part of clypeus, face and front densely punctured, vertex with 

 the punctures sufficiently separate to have shining margins ; man- 

 dibles long, the apical margin with three short teeth, the inner 

 margin with a low angular projection ; labrum with a small red sub- 

 apical tubercle, and its lateral apical corners acutely pointed; flagellum 

 obscurely reddish beneath ; hind ocelli much nearer to each other 

 than either is to the occipital margin ; mesothorax and scutellum 

 shining, but very closely punctured ; area of metathorax dullish, 

 depressed in middle ; tegulse dark rufous ; wings dilute brownish, 

 nervures piceous ; legs black, with pale hair, the tarsi reddish 

 apically ; abdomen closely punctured, second and third segments 

 with a deep transverse depression ; sides of first abdominal segment 

 with conspicuous white hair; hind .margins of second and third seg- 

 ments with dense bands of pale yellowish hair, failing in middle, 

 becoming white at sides ; extreme basal margins of third and fourth 

 segments with an ochreous line ; fourth segment entirely without 

 hair bands or spots ; fifth and sixth segments, except at sides, covered 

 with pale yellow tomentum (between dilute orange and ochreous) ; 

 ventral scopa white, on the last segment fuscous-tinged. 



$ . Length about 9 mm. ; hair of face entirely white ; anterior 

 coxae with tubercles in place of spines ; tarsi dark red, the anterior 

 ones simple ; tegulae rufopiceous ; bands on second and third abdo- 

 minal segments broadly interrupted in middle, and with very little 

 yellowish ; pale yellow apical hair-patch including fifth segment and 

 a broad apical band on fourth (except at sides), and the base of sixth ; 

 sixth segment rather obtusely bidentate, the teeth broad-triangular ; 

 no apical ventral spine. 



Female (type) from Windsor, Victoria {French ; Froggatt 

 coll., 198) ; male from Victoria {French ; Froggatt coll., 50). 

 Allied to M. tomentella, Ckll. (male), but differing by the dusky 

 wings and conspicuous hair-bands. The female may be com- 

 pared with M. heriadiformis, Sm., but it has no bands on the 

 fourth abdominal segment. The species is also somewhat allied 

 to M. trichognatha, Ckll. 



Megachile hackeri, sp. n. 



I had identified this as M. apicata, Sm., but comparison with 

 the genuine apicata, from Victoria, shows it to be quite distinct. 



? . Length, 8| mm. ; similar to apicata, but the three clypeal 

 teeth very low and widely spaced ; flagellum dark (bright red beneath 



