Indian Acultafe Ilymeyiopiera. 545 



and colouring, thej are very difficult to separate. I have 

 tiierefore made out the following key to assist in their 

 identification : — 



A. Median segment marked witli yellow N. decorata, 5 • 



B. Median segment not marked with yellow. 

 a. Head and thorax chiefly red. 



a^. Abdomen with second and following seg- 

 ments black and yellow K, pviscilla. 



h^. Abdomen with second and following seg- 

 ments red, or red and yellow. 



fl^. Length over 10 millim N. heata. 



V. Length under 10 millim. 



a'. Whole abdomen smooth, impuncfate. 

 ii}. Enclosed space at base of median 



segment striate N. lusca. 



b*. Enclosed space finely rugosely punc- 

 tured N. rndiata, 5 . 



h^. Bases of second and following segments 



punctured N. adusta. 



c'. Abdomen with second and following seg- 

 ments red, with black and yellow markings. N.Jlavozonata, $ , 

 b. Head and thorax chiefly black. 



c(}. Second and following abdominal segments 

 red, with yellow markings. 

 «-. Head and thorax with red markings .... N. radiata, (J. 

 i*. Head and thorax with yellow markings. , N. decorata, cf . 

 b\ Second and following abdominal segments 

 black, with yellow, or red and yellow, 

 markings, 

 a^. Legs more or less yellow. 



a^. Abdomen fijiely punctured N.Jluvozonata, (f. 



P. Abdomen impunctate N. soUtaria. 



b^. Legs red, or red and black. 



fl^. Scutellum with two large yellow 



maculae N. arida. 



¥, Scutellum immaculate. 



a-*. Front with golden pubescence N. lucilla. 



5*. Front with long fuscou-s hairs N. ceylonica, 



Osmia gulmargensis, sp. n. 



? . Head and thorax very finely and closely, abdomen 

 closely and still more minutely punctured ; clypeus rounded 

 anteriorly, large and convex; abdomen scarcely longer than 

 thorax, the segments very slightly constricted at apex. 

 Head, thorax, and legs dark green, shining ; flagellum of 

 antennee black ; abdomen lighter metallic green ; tibial 

 calcaria and apical joints of tarsi rufous ; head, thorax, basal 

 segment of abdomen, and legs as far as the apex of the tibiae 

 with greyish pubescence, longest on the thorax; remainder 

 of abdomen, the tarsi, and scopa with light red or reddish- 

 golden pubescence, especially thick on the inside of tarsi. 

 Ann. cf; i%. N. Hist. Ser. 7. Vol. xi. 38 



