428 APIDJE. 



737. Halictus protens, Vachal, Ann. Mus. Civ. Gen. (2») xiv, 1894, 



p. 488, 2 d CO- 



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

 punctured, the punctures on the basal abdominal segment some- 

 what sparser, the segment highly polished, glabrous ; head trans- 

 verse, the front slightly elongate, flat, an impressed vertical line 

 from the anterior ocellus to between the bases of the antennae ; 

 median segment truncate posteriorly, the sides convergent, 

 margined above, the lunate space at base rugose. Black, with an 

 obscure greenish tint in certain lights, the pubescence very pale 

 fulvous ; the clypeus and front, the pronotum and sides of the 

 thorax sparsely pubescent, the postscutellum and transverse bands 

 at the base of abdominal segments 2-4 covered with dense 

 pubescence ; legs with a long soft covering of pale glittering 

 pubescence; anal rima testaceous; wings hyaline, nervures and 

 tegidae testaceous. 



cT (?). The face densely covered with fulvous pubescence ; the 

 apical half of each femur, the tibiae and tarsi, and the apex of the 

 clypeus yellow ; the base of segments 2-4 of the abdomen with 

 lateral maculae of fulvous pubescence ; the wings hyaline and 

 vividly iridescent, nervures and tegulae testaceous. 



Ilab. Tenasserim. $ . Length 7 ; e,vp. 12 mm, cJ . Length 7'5 ; 

 ex2}. 13 mm. 



738. Halictus subopacus, Smith, Cat. i, p. 63, $ . 



2 . Head, thorax, and abdomen densely and finely punctured, 



gi'anular in appearance and 

 opaque ; head in front elongate, 

 front not carinate, eyes distinctly 

 convergent below ; clypeus very 

 convex, its anterior margin trans- 

 verse and with some coarse punc- 

 tures ; median segment roundly 

 steep at the sides, truncate in 

 Fig_ 135. the middle posteriorly, the space 



Halictus subopacus, $. |. at base rugose. Black ; the sides 



of the thorax, the sides and apex 

 of the median segment, and the upper half of the legs with pale 

 fulvous pubescence ; the tibiae and tarsi with rich golden fulvous 

 pubescence, the base of the abdomen and the base of segments 

 2-4 with fulvous-white pubescence ; anal rima fulvous ; wings 

 pale flavo-hyaline, nervures and tegulae testaceous. 



Hah. Sikhim ; Upper Burma ; China. $ . Length 10-11 ; eccp. 

 20 mm. 



739. Halictus taprobanae, Cam. Mem. Maneh. L. Ph. Soc. xli, 1897. 



cS . Closely allied to and resembling H. garrulus (p. 434) : differs 

 in having the vertex of the head flatter above ; the thorax longer, 

 not so compact, the enclosed space at the base of the median 



