cy Die Bienen Afrikas nach dem Stande unserer heutigen Kenntnisse. Ißn 



Halictus interstitinervis Cam. 

 1905 Halictus interstitinervis Cameron, $, in: Tr. S.-Afr. Phil. Soc, Vol. XV, p. 240. 



$. Black; the hair and pubescence dense and white except on the under side of the tarsi where it is 

 bright red ; anal rima fuscous in the centre ; wings clear hyaline, the Stigma f uscous, the nervures black ; the first 

 recurrent nervure interstitial. L. 6 — 7 mm. 



Antennae brownish beneath towards the apex. Clypeus shining, distinctly punctured, the punctures large 

 and clearly separated ; the centre of the face raised, minutely punctured ; the front and vertex closely and finely 

 punctured. Mandibles shining, black. Mesonotum and scutellum closely, distinctly, finely punctured; the basal 

 half of the former with a distinct, clearly defined furrow in the centre; the postscutellum thickly covered with 

 griseous hair. Metanotal area irregularly striated to near the apex; the Striae in the middle forming almost 

 reticulations. Pleurae alutaceous. The second and third cubital cellules in front are almost equal in length; the 

 third transverse cubital nervure roundly curved; the first recurrent nervure interstitial; the second received in 

 the apical fourth of the cellule. Abdomen shining, closely, microscopically punctured; the base of the segments 

 with a band of greyish powdery pubescence; above it is almost without hair; the ventral scopa clear white. 



Kapland — Stellenbosch. 



Halictus jucundus Sm. 



1853 Halictus jucundus Smith, #$, in: Cat. Hym. Br. Mus., Vol. I, p. 56. 



1903 „ „ Vachal, $, in: Ann. Soc. ent. France, T. LXXII, p. 388. 



1908 „ „ subsp. benguellensis Cockerell, $, in: Entomologist, p. 121. 



$. Brassy green, very finely and closely punctured, face and cheeks covered with pale pubescence, that 

 on the vertex fulvous; flagellum rufo-testaceous beneath. The disk of the thorax thinly clothed with fulvous 

 pubescence; wings hyaline, nervures and tegulae pale testaceous, tarsi ferruginous, as weh as the anterior tibiae 

 in front, pubescence on the tibiae and tarsi pale fulvous. Abdomen ovate, thinly covered with pale pubescence, 

 margins of the segments depressed and having a band of pale yellow pubescence, the anal rima fulvous. 

 L. 3V 2 lines (= 7V2 mm). 



S closely resembles the ?, apex of the clypeus, labrum and mandibles yellow, the latter ferruginous at 

 their apex, flagellum fulvous beneath, tibiae and tarsi of a reddish yellow, margins of the segments much 

 depressed. L. ?. 



Kap, Sierra Leone. 



Vachal sagt: 



„2 ? de Libreville VIII 97 et de Rio Mouny print. 98 (Bouyssou), coli. Vachal. 



Tres semblable ä H. virescens Lep., en differe par la partie de l'aire dorsale du segment mediaire qui 

 entoure la lunule tres finement ponctuee, non brillante, et l'armure de l'eperon composee de quatre epines 

 obliques, la basale longue, les autres decroissantes, la quatrieme tres courte." 



Cockerell schreibt: 



$. Agreeing with H. jucundus Smith, from Willowmore (Kapland), except that the wings are strongly 



dusky and the nervures and stigma are darker. The insect is larger than H. virescens Lep. from Bozen, Tirol 



(Friese), and differs, as Vachal has indicated, in the teeth of the hind spur. The metathoracic character 



mentioned by Vachal is scarcely distinctive for the Benguela form. Smith described H. jucundus from the 



Cape and Sierra Leone, but the former must be taken as the type locality, as it is given first, and the wings 

 Jenaische Denkschriften. XIV. 8 Schultze, Forschungsreise in Südafrika. IL 



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