MEQACHILE. 479 



841. Megachile mystacea*. 



Api.s ra\v<tacea, Fahr. Si/xt. E?tt. p. 385 (Apis). 



Mefracliile nifiventris, Guer. Voy. BeUvnger, Zool. p. 502, Atlas, Ins. 



pi. 4, fig. 5 ; Smith, Cat \, p. 178. 

 Megachile luculeuta, Biuffh. Jour. Bomb. N. H. Soc. 1890, p. 249, $ . 



2 . Head and thorax densely and rather coarsely punctured ; 

 clypeus triangular, depressed inwards, its anterior margin trans- 

 verse, waved, and having in the middle two short teeth, and above 

 near the base a + -shaped carhia ; mandibles large, powerful, longi- 

 tudinally rugose. Black, the front between the antennae with 

 tufts of black pubescence ; the sides of the pro- and mesonotura, the 

 meso- and metapleurae, scutellutn, and median segment on both sides 

 with erect fusco-griseous pubescence ; legs black with fuscous 

 pubescence, the inside of the posterior pair fulvous ; abdomea 

 covered with dense rich ferruginous-red pubescence, very often 

 black on the 1st segment ; pollen-brush ferruginous ; wings dark 

 fuscous to fusco-hyaline, in by far the commonest variety flavo- 

 hyaline, fuscous along their apical margins. 



6 similar, smaller, with some white pubescence on the front of 

 the head and clypeus. The calcaria in both sexes red. 



Hah. India ; Isle of France (Smith) ; • Burma ; Tenasserim, 

 extending into the Malayan and Australian regions. 5 . Length 

 15-20 ; ex2). 24-40 mm. d . Length 12-13 ; exp. 22 mm. 



842. Megachile conjuncta, Smith, Cat. i, p. 175, $ c? . 



2 . Head, thorax, and abdomen very minutely and closely 

 punctui-ed ; clypeus more sparsely punctured, with an impunctate 

 space down the middle, its anterior margin transverse, the front 

 between the antennae and the base of the clypeus moderately 

 convex, the latter anteriorly depressed, the occiput roundly 

 emarginate ; abdominal seguients 1-5 with their apical margins 

 very narrowly depressed, the anal segment large, the pygidium 

 convex with a medial longitudinally-impressed line. Black, a little 

 fuscous pubescence on the clypeus and apical segment of the 

 abdomen, the depressed margins of segments 2-5 with transverse 

 narrow bands of the same ; the sides of the prothorax, the median 

 segment, and the basal segment of the abdomen clothed with white, 

 at the sides of the last sometimes with yellowish pubescence ; 

 pollen-brush bright fulvous ; wings hyaline, broadly light fuscous 

 towards their apex ; legs castaneous brown, covered with glittering 

 pale hairs, the tarsi of the intermediate and posterior legs with 

 ferruginous pubescence. 



c? similar, smaller, with some white pubescence on the front 

 and clypeus. 



* Radoszkowski (Wiadora. z nauk Przyrod. pt. ii, p. 78) describes a species 

 under the name M. si/ckimi from Sikbim, which is cither identical Mrith the 

 above or closely allied to it. 31. sik/cimi differs principally in having the 

 pubescence on the thorax and basal segment of the abdomen entirely black. 



