NEMATUS ALBIPENNIS. 175 



84. NEMATUS ALBIPENNIS. 

 PI. XXY, fig. 3, Saw. 



Nematus albipennis, Htg., Blattw., 196, 22 ; Tlioms., Hym. 



Scand., i, 88, 8 ; Opusc., 616, 4 ; 

 Br. and Zad., Schr. Ges. Konig., 

 xxiv, 318, 64 ; Andre, Species i, 

 208; Cat., 24;* Cam., Fauna, 

 38. 



Drewseni, Dbm., Consp., 8, 76. 



confusus, Foerster, Yerh. pr. Rhein., 280. 



Black, shining, mouth, pronotum, abdomen, and legs, luteous. An- 

 tennae thickish, tapering towards the apex; the third and fourth joints 

 equal. Head thickish, scarcely narrower than the thorax, black, 

 shining, pentagonal area scarcely visible ; fovea between the antennae 

 large, conspicuous, forehead projecting between the antennae ; eyes oval, 

 lower part of the face covered with long hairs ; apex of clypeus, labrum, 

 and palpi (except at the base, where the colour is darker), luteous ; 

 mandibles brownish ; the apex of the clypeus is broadly notched. 

 Pronotum luteous, meso- and metanotum half shining, black, covered 

 with greyish pubescence; the breast and pleurae smooth, shining, 

 slightly pubescent ; cenchri large, white ; scutellum strongly punctured. 

 Abdomen inflated in the centre, apex rounded, bright luteous ; cerci 

 small, pale luteous ; the blotch large, surrounded with black ; saw slightly 

 projecting, black and pilose. Legs luteous, a little whiter at the base ; 

 the posterior tarsi with the apex of tibiae thickened ; posterior tarsi 

 shorter than the tibiae ; the spurs less than one-quarter the length of 

 metatarsus ; claws toothed. Wings yellowish, clearer at the apex ; the 

 costa and stigma luteous ; the first transverse cubital nervure is dis- 

 tinct, the third cubital cellule a little more than double the length of 

 the second, which has a horny point near the apex ; the second recurrent 

 nervure is almost joined to the second transverse cubital. The tegulse 

 are luteous. 



Length 3 3 lines. 



The eyes are occasionally surrounded with a yellow 

 border. The <$ I have never seen. It is stated by 

 Thomson to have the antennas dilated and compressed 

 at the base, the breast entirely black, and the dorsal 

 lobe of the eighth abdominal segment widely produced 

 in the middle. 



The strongly punctured elevated scutellum will 

 readily distinguish this species. 



Dours (Cat. 13) adopts the name of albipennis for 



