TEMTHREDINID.T.. LYDA. 101 



Head pale ochreous, with 2 subquadrate black spots on the face and 6 on the 

 crown; mandibles dusky at the tip; thorax of a paler tint, with a black 

 streak in the middle in front, 1 on each side at the base of the wings, 3 

 confluent ones on the middle of the disc before the scutellum, and the 

 metathorax entirely black ; collar and pleurae yellow ; sternum black ; 

 abdomen yellow beneath, black above, v.'ith the margin of each segment 

 narrowly edged with pale yellow, expanding into a small dot on the sides, 

 which are brighter yellow ; legs pale yellow, with a black streak on all the 

 femora behind ; apex of the tibiae and the tarsi rather orange ; antennse 

 luteous, with the 2 basal joints yellow, and spotted with black above ; 

 wings hyaline, with a slight yellowish tinge ; nervures and stigma very pale 

 yellow. 

 Apparently very rare: I have seen but my own specimen, which 



was taken in the vicinity of the metropolis, in June. 



Sp. 15. aurita. Atra capitis clypeo maculaqiie genarum, antennis pedihus abdo- 



mineque flavis. (Long. corp. 5 lin. ; Exp. Alar. 10 lin.) 

 Ly. aurita. Klug.—Steph. Catal 340. iV^o. 3968. 

 Head black, with the clypeus and a spot on the cheeks yellow; thorax black; 



abdomen yellow, its 1st segment and a spot on the 2nd black ; legs and 



antennae yellow ; wings hyaline, with the nervures and stigma yellow. 



Also rare, and found near London in June. 



Sp. 16. depressa. Capite tlwraceqne nigra Jlavoque variis. abdomine pedibusque 



Jiavescentibus. (Long. corp. 4i lin. ; Exp. Alar. 9^ lin.) 

 Te. depressa. Schrank.—Ly. depressa. Steph. Catal. 340. No. 3970. 

 Head and thorax varied with yellow ; sternum black, with an oblique yellow 



streak on both sides; abdomen yellowish, with the 1st and 2nd segments 



occasionally black; legs luteous-yellow ; wings yellow, with the nervures 



and stigma of a saffron hue; antennae luteo-testaceous. 



Rare: taken at Coombe, Darenth, and Birch woods, and near 

 Manchester in June and the beginning of July. 



Sp. 17. flaviventris. Capite thoraceque luteo nigroque variis, pedibus abdomineque 

 Jiavescentibus, hoc basi supra nigro. (Long. corp. 5— 6§ lin.; Exp. Alar. 



Hi— 12Uin.) 

 Te. flaviventris. Ret%ius.—Ly. flaviventris, Steph. Nomen. 2d edit. Appendix. 

 Antennae fuscous, luteous at the base ; head and thorax black, varied with 



fSp. 14. flava. Lutea, ocuHs nigris. 



Te. flava. LinnL—Turton (!)-Ly. flava. Steph. Catal 340. No. 3972, note. 



Entirely yellow, with black eyes; body inflated; wings somewhat hyaline, 



with the nervures and stigma pale testaceous. 

 Introduced as British by Turton, but improperly. 



