116 TENTHREDOPSIS INOKNATA. 



and apical segments ; the hinder tibiae and apex of 

 femora are fuscous, four apical joints of hinder tarsi 

 pale, antennae pitchy, and the metapleuro3 are not 

 altogether black. 



A species intermediate between inornata and nigri- 

 ceps. From the former it may be known by having 

 the metapleurae black, coxaa blacker, and (as well as 

 the trochanters) more distinctly marked with white, 

 antennas and spurs longer ; from the latter by its 

 longer antennae and spurs, lighter-coloured antennae, 

 luteous tegulae, pale trochanters, and entirely luteous 

 femora. 



Apparently rare. I have it from Kingussie, have 

 a specimen from the Manchester district, and have 

 seen another in Shuckard's collection, while Mr. 

 Bridgman takes it at Norwich. 



19. TENTHREDOPSIS INOENATA. 

 PI. XVIII, fig. 4, Saw. 



Tenthredopsis inornatus, Cam., Tr. Ent. Soc., 1881, 571. 



Dark testaceous; mandibles, clypeus, labrum, scutellum and scu- 

 tellar spots yellow ; back of abdomen with an interrupted black band ; 

 hinder tarsi fuscous, apical joints of antennae fuscous ; vertex in centre, 

 coxse, trochanters and hinder femora at base, and metapleurse largely 

 marked with black. The middle suture on vertex is absent ; there is no 

 distinct furrow between the ocelli, only a depressed space, frontal area 

 depressed, antennal fovea wide. Wings hyaline. 



The $ black ; labrum, clypeus, and orbits of eyes broadly, and 

 tegulae and edge of pronotum yellowish-white ; front coxse with a white 

 spot below, the rest and the posterior coxse and base of femora black ; 

 trochanters pale. Legs and abdomen reddish, the latter with the apex 

 and a band in the centre black. 



Compared with nassata it is smaller, the antennae 

 are shorter and thicker in the middle, with the third 

 joint longer in proportion to the fourth ; the colour is 

 darker, pubescence (especially on mesonotum) is much 

 denser, hinder tarsi shorter in proportion to the tibias, 

 and the wings shorter. Nassata, too, wants the black 

 on legs and pleurae, and the head projects more behind 



