HALICTTJS. 423 



6'. Atdomen impimctate. 



a'-. Clypeus with a mediau vertical 

 carina. 

 a^. Mediau segment truncate and 



margined at apex H. intricatus, p. 438. 



b^. Median segment truncate but not 



margined at apex //. reticulatiis, p. 438. 



b'.. Clypeus not carinate. 



a^. Basal two abdominal segments 



with ti'ausverse narrow furrows. H. senescens, p. 438. 

 b^. Basal abdominal segment only 



with transverse furrow H. xystonotus, p. 439. 



c^. None of the abdominal segments 

 transvei'sely furrowed. 

 «*. Front above base of anteunte 



striate H. amitimis, p. 439. 



b^. Front striate. 



a'. Median segment vertically 



carinate S. rufozonatus, p. 439. 



5*. Median segment not carinate. 

 aP. Mesouotum reticulate . . S. liodomus, p. 440. 

 b^. Mesouotum not reticu- 

 late ; punctured. 

 a'. Legs covered with 



\\osivj pubescence . . H. dissimulandus, p. 440. 

 b~. Legs covered with 

 golden yellow pubes- 

 cence jy, so'enus, p. 440. 



725. Halictus splendidulus, FacMl, Ann. Mm. Civ. Gen. (2*) xiv, 

 1894, p. 432, 2 6. 



5 . Head iu front closely punctured, opaque and slightly pubes- 

 cent; thorax and abdomen smooth, brilHantly polished and 

 shining; the mesouotum with fine regular, not very close punctures; 

 postscutellum covered with a short pubescence ; median segment 

 narrowed posteriorly, the apex transversely truncate and margined 

 above, the space at base with outwardly radiating fine striae ; 

 abdomen with the base of the 2nd segment slightly constricted. 

 Dark castaneous brown, nearly black, the legs with a glistening 

 pale golden pubescence ; the bases of segments 2-5 with traces 

 of transverse fasciae, broadest at the sides, of pale pubescence ; 

 wings hyaline and iridescent, nervures and tegula) pale testaceous. 



cf similar, but with the clypeus much produced. 

 Hah. Karen Hills, Burma. $ . Length 5 ; exp. 9 mm. S 

 slightly smaller. 



72G. Halictus albescens. Smith, Cat. i, p. 61, 2 6- 



Halictus albozonatus, Smith, Neiv Sp. Hym. B. M. p. 32, $ . 



$ . Head closely and finely, thorax more sparsely punctured ; 

 median segment at the sides and apex and the abdomen smooth, 

 shining; front flattisb, not carinate, elongate; eyes distinctly 

 convergent below ; median segment with the sides compressed, the 

 apex concavo-truiicate, with a medial vertical carina; lunate space 

 at base restricted, with outwardly divergent stria? ; 1st and 2ad 



