Hymenoptera aculeata collected in Algeria. 517 



(altitude 3177 feet); and a mule-track west of and parallel 

 with the main road to Algiers near the town. [A large 

 part of the woods above Tib Harin was accidentally or 

 malevolently burned (I believe) this summer.] 



The environs of Medea to the right of the Route d' Alger 

 and north of the Route de Laghouat yielded many inter- 

 esting species. The best sites were along a mule-track 

 leading to the hill marked 991 (3250 feet) above the 

 railway-station ; the heads of ravines on the northern 

 slopes of the ridge, near Md. Ben Omar (2730 to 3130 

 feet) ; and in vineyards, etc., along the northern flanks of 

 Koudia Sma (2700 to 3180 feet, the summit) ; the upper 

 parts of this hill were less productive. 



South and east of the town, as far as the stream Oued- 

 el-Harch (about 1900 feet) and Damiette (about 3000 feet), 

 are several excellent collecting-sites : — Plateau d'Ouzaneau, 

 Aine Mekra (2700 feet) and Aine Souk. Farther east- 

 wards are Hassen-ben-Ali and Kef-el- Ahmeur. 



Plants cited. — Malvacete ; Malva sylvestris (vi.). Cary- 

 opJiyllem; Dianthus serrulatus (vi. 27). Zeguminosse ; 

 Sarothamnus arboreus (vi.). Umbelliferse ; Eryngium tri- 

 quetrum (vi. to vii. 12), tricuspidatum, in woods (viii. 17, 

 21), Daucus setifolius, in woods (vii. 30; viii. 2), carota 

 [maximus], seldom attractive to bees (vii. 8). Dipsacese ; 

 Scabiosa maritima (vi. to vii. 11). Composite ; Pulicaria 

 dysenterica (vii. 5), Carlina racemosa (viii. 17, 21), 

 Atractylis gummifera (viii. 12), Centaurea nicseensis 

 (vi.), calcitrapa (vii. 5-21), Microlonchus salmanticus 

 (vii. 11-30), Onopordon macracanthum (vi. to vii. 5), 

 Cirsium giganteum (vii. 5), Scolymus hispanicus (vi. to vii. 

 11), Sonchus arvensis (vii. 28). ConvolvulacesB ; Convolvu- 

 lus arvensis (vi.). Boragineaz ; Echium sp. — (vi. — vii. 3). 

 Labiatte ; Mentha rotundifolia (vii. 11 to viii. 11). Verbena- 

 cese; Verbena officinalis (vii.). Thymelese; Daphne gnidium 

 (viii. 21). Liliacem ; Asparagus sp. — (vi. 28), Allium sp. 

 (vii. 14). 



In Kabylie, Tizi-Ouzou, Azazga, and Fort National were 

 visited. 



Tizi-Ouzou (Oct. 30th, Nov. 8th to 11th, 1892), when 

 Hymenoptera were not prime specialities ; and June 13th to 

 15th, 1893. — Sites of captures made in neighbourhood 

 range in altitude from about 160 feet to 800 feet, but 

 mostly lie between 300 and 600 feet. 



Subsidiary places and sites. — Dra-ben-Kredda or Mira- 



