112 TENTHREDOPSIS FULVICEPS. 



of abdomen yellow. Legs testaceous; coxae, middle femora at base, 

 and hinder pair entirely black ; coxae broadly marked with yellowish - 

 white ; trochanters white ; hinder tarsi more or less fuscous ; the third, 

 fourth, fifth, and sixth segments of abdomen with a triangular spot 

 on the side, which is occasionally extended to the ventral surface, 

 and, more rarely, across the junction of the segments above. 



The $ has the antennae longer and pale testaceous beneath; the 

 mouth and orbits of the eyes broadly yellow ; the testaceous spots on 

 sides of abdomen narrower ; the white marks on coxae also narrower ; 

 the trochanters marked with black ; hinder tibiae somewhat piceous, and 

 tarsi fuscous. The tegulae are pale ; the fovea on anal segment is very 

 deep at the apex, and the depression does not reach the base of the 

 segment. 



Length 4 5 lines. 



This species is not unlike caliginosa, but it is readily 

 separated by the pale colour on pronotum and base of 

 legs, besides being a narrower and more slender insect, 

 with somewhat shorter antennse ; from lividiventris it 

 is known by the head and pleurae wanting the testa- 

 ceous colour, and the abdomen is only testaceous at 

 the sides, not through its entire extent. 



Not common. Near London (Stephens), Clydes- 

 dale, Lochaweside, Aberdeen (Trail). 



13. TENTHREDOPSIS FULVICEPS. 



Tenthredo fulviceps, Ste., 111., vii, 75, 8. 



Tenthredopsis fulmceps, Cam., Tr. Ent. Soc., 1881, 568. 



Black; mandibles, labrum, clypeus, scutellum and scutellar spots 

 yellow ; orbits of eyes broadly pale testaceous ; the eyes on inner side 

 with a thin yellow line, and there is a broader and longer yellow mark 

 behind them ; the third to sixth segments of abdomen beneath and at the 

 sides dark reddish-testaceous. Legs dark testaceous ; coxae, trochanters, 

 and hinder femora black ; hinder tibiae testaceous at base, the rest of it 

 piceous ; hinder tarsi pale ; coxae and trochanters streaked with white ; 

 calcaria scarcely reaching to middle of metatarsus. The middle furrow 

 on vertex is scarcely indicated behind, but a little behind the ocelli is 

 seen as a deep groove, which is prolonged between the ocelli, while at 

 the base of these there is a transverse groove, so that the two furrows 

 form a well-marked cross; the frontal area is distinct, wide, and 

 shallow; antennal fovea deep; clypeus slightly incised. Antennae 

 black, dark testaceous on under side, thickish, attenuated at the apex. 

 "Wings hyaline ; tegulae black. 



Length 4| lines. 



* 



A stouter, broader insect than tristis ; antennse 

 thicker and shorter, abdomen broader, more inflated, 



