Hymenoptcra acnlcata collected in Algeria. 249 



OSMIA TRICOLOR, n. sp. 



Nigra, clypei apice, vertice, mesdnoto et postscutello Itete fulvo- 

 hirtis, clypei basi, thoracis et propodei lateribns niveo hirtis, area 

 propodeali nitida. Abdomen nitiduni punctatum, niarginibus posticis 

 fasciis latis, in segmentis 1, 2, 3 late interruptis in 4 et 5 completis 

 niveis ornatis, scopa albida. 



$ . Black. Mandibles outwardly, apex of clypeus, vertex, meso- 

 notum including the scutellum, and also the postscutellum clothed 

 with bright fulvous red hairs, base of the clypeus, face, thorax at the 

 sides and sides of the propodeum, a short, rather wide lateral band 

 at the apex of the 1st, 2nd and 3rd abdominal segments, and an 

 entire band on the 3rd and 4th clothed with snowy-white hairs, 

 wings dusky, nervures rufo-testaceous at the base, brown otherwise, 

 teguhe bright rufo-testaceous, legs clothed with white hairs, apical 

 joints of the tarsi testaceous, ventral Ijrush whitish. Head closely 

 punctured, mandibles tridentate, antenna3 short, 1st joint of the 

 tlagellum longer than the 2nd, 2nd wider than long, 3rd twice as 

 wide as long, the following joints lengthening in their proportions 

 the penultimate joint nearly quadrate, surface of thorax where 

 visible slightly shining, largely punctured, the punctures nearly as 

 wide as the intervals, propodeal area shining ; abdomen shining 

 finely punctured. 



Long. 6|-7 mm. 



A small compact species, whose colour will distinguish 

 it from any other which I can find described. 

 $ 3. Biskra, on Reseda, 21, iii, 97. {A. E. E.) 



OsMlA MORlCEF, Friese. 



$ 2. Biskra, Route des Ziban, on Ammi visnaga, 



18, V, 98. {A. E. E.) 

 $ 1. „ grounds of Chateau Landon, on Ammi 



visnaga, " eyes sap green," 24, v, 93. 



(A. E. E.) 

 %\. • „ road to Hamman es Salahin, visiting 



Pegaiium harmala, 22, iv, 95. 

 $ 1. ,, near railway, Kilom. 199, 12, iv, 95. 



{A. E. E.) 

 ^ 3, $ 8. „ 4 to 7, V, 98. (E. D. M.) 



OSMIA TRANSCASPICA, Mor. 



^ 2, $ 9. Biskra, on Antirrhinum ramosissimum, 1, iii 

 and 21, iii, 97. (A. E. E.) 



