ALLOTEIA TRAPEZOIDEA. 255 



abscissa of the radius fully three times the length of 

 the third, the legs are pale testaceous, not reddish, 

 and are especially pallid at the joints. 



Bonar Bridge, Sutherlandshire ; Cladich, Loch Awe, 

 Dumfries. 



25. ALLOTRIA CITRIPES. 

 PL XVII, fig. 9. 



Allotria citripes, Thomson, Oef., xviii, 410, 18. 



Black ; the face and oral region piceous-red ; the antennae and legs 

 yellow ; wings hyaline, the nervures pallid yellow. The radial cellule 

 minute, not much longer than broad; the first abscissa of radius more 

 than half the length of the second ; cubitus obsolete beyond the short 

 stump ; the margin with a long fringe. Antennae longer than the body, 

 thickened very perceptibly towards the apex. 



Length scarcely 1 mm. 



Mull, Cladich, Loch Awe; Kenmuir Bank, near 

 Glasgow, Dumfries. 

 Sweden. 



26. ALLOTRIA TRAPEZOIDEA. 



Xystus trapezoideus, Htg., Germ. Zeits., iii, 352, 24. 



Dull black, inclining to piceous ; the head dull red, castaneous on the 

 top ; the basal five joints of the antennae and legs yellow ; wings hya- 

 line, the nervures thick, pallid yellow. Antennas a little longer than the 

 body, becoming gradually but distinctly thickened towards the apex, 

 the third joint a little longer than the fourth ; wings thickly pilose, the 

 fringe long ; radial cellule small, one-half longer than broad ; the 

 second abscissa of radius straight, three-fourths of the length of the 

 third, which is distinctly curved, especially towards the apex ; cubitus 

 a short but distinct stump. The wings are longer than the body ; the 

 median segment and base of abdomen moderately pilose ; the tips of 

 the tarsi blackish. 



Length f mm. 



There is no doubt, I think, that this species is dis- 

 tinct from citripes, it being somewhat smaller than it 

 and less stout ; the apical three-fourths of the antennae 

 distinctly blackish ; the colour of the legs has a 



