liccords of Bees. 101 



pale, but brownish tinted ; nietatliorax formed as in H. kalu- 

 (one, >\Jth tlie same jieenbar basal area; upp;n' side of 

 jiotliorax laterally (UmiscIv liiiiiy; tegulic hyaline testaeeons. 

 AViiius dusky iiyaliue, sti^jjma and nervnres tostaeeous ; 

 seeond s.m. narrow ; first r. n. joining second t.-e. ; third 

 t.-e. Avitli a sinjjle very slight curve. Legs with pale hair, 

 including outer side of tibial ; liinil spur with four long 

 spines. Abdomen broad, fir>t segment smooth and shining, 

 the others appearing minutely granular; second and tiiird 

 segments with dense basal bands at sides, rapidly narrowing 

 to a |)oint mesad ; venter with long hair. 



Hab. Sigiri, Ceylon, March 1910 {E. Comber). 



{'Evidently related to H.kalutar(e,h\xi smaller, with normally- 

 formed head. 



Halictus semisculptus, sp. n. 



5 . — Length about 8 mm. 



Robust, bUick, with very pale ochreous pubescence ; head 

 bi-oad; elypeus shining, longitudinally grooved, with punc- 

 tures in rows ; supraclypeal area convex, dullish, hardly 

 sculptured ; i'ront dull, minutely granular ; vertex shining ; 

 checks normal, broad, hairy; antennae black, flagelluui 

 faintly brownish at apex ; mesothorax and scutelluni 

 granular-punctate, but moderately shining ; postscutellum 

 (but not hind border of mesothorax) covered with pale 

 tomentum ; basal area of metathorax large, shiny, rather 

 more than the basal half covered with irregular wrinkles, 

 tending to form a network ; posterior truncation well-defined, 

 the upper lateral angles greater than right angles, while from 

 them proceeds a ridge along each side of metathorax, running 

 a little upwards ; tegnke reddish testaceous. "Wings hyaline ; 

 nervnres and stigma dull testaceous ; third t.-c. and second 

 r. u. much weakened ; second s.m. broad, first r. n. reaching 

 extreme basal corner of third s.m.; hair on inner side of 

 tarsi bright ferruginous; hind spur with strong spines ; first 

 abdominal segment smooth and shining, with scattered 

 extremelv minute punctures ; the other segments shiniu"-. 

 but surface appearing more granular; second and third 

 segments with rather thin basal bands of greyish tomentum, 

 continuous right across; fifth segment dark reddish. 



Hab. Kalutara, Ceylon, March 1910 [E. Comber). 



Closely resembles some of the species inhabiting the north- 

 eastern United States, especially H.arcuatus parisus, Lovell. 



Halictus nasicensis, sp. n. 

 $ . — Length about 6 mm. 



