246 [November, 



joints, but not phenomenally so ; and very noticeably longer than the latter. 

 (Hence the antennae as a whole are elongate and only moderately setiform)... 



3. 



3. Antennae with joint 3 more or less distinctly curved in both sexes (convex above, 



concave below), and, in the <? , with its base projecting like a short tooth, or 

 at least swollen into a definite lump 4. 



— Antennae with joint 3 straight, and, in the <? , neither dentate nor particularly 



lumpy at tlie base 7. 



4. Abdomen and antennae black 5. 



— Abdomen and antennae red or orange Trichiocampus viminalis, Fall. 



5. Legs (including the whole of the femora) pale reddish-yellow. Antennae of $ 



fringed beneath with very long hairs. (Tlieir length quite double the breadth 

 of the joints that bear th.em !). Joint 3 witli a strong dentiform production 

 at its base Trichiocampu/s ulmi, L. (= rufipes, C). 



— At least part of the femora evidently black or fuscous. Antennae of $ fringed 



with much shorter hairs than in tilmi, and with a somewhat less prominent 

 (more rounded) knob at the base of joint 3 6. 



6. Femora at least partly yellow beneath, elsewhere than at the extreme apex... 



Trichiocampus dreivseni, Thomson (?) 



— Femora quite black above and beneath, except at the extreme apex, which (with 



the tibiae and tarsi) is brownisli-grey... Trichiocampus eradiatus, Hartig (?) 



7. Trochanters white. Wings, if clouded, are uniformly so throughout... 



Priophorus padi, L. 



— Trochanters nearly or quite black. Wings evidently clouded in the middle, with 



the apical half (and also the extreme base) noticeably clearer. (Antennae 

 rather shorter, and more shortly haired, than in padi. Head, as seen from 

 above, more quadrate behind the eyes ; the tempora being moi'e developed)... 



Priophorus tristis, Zadd. (^= brulkei, C). 



8. Larger. Head and thorax mostly red or orange. Eadial a. divided 9. 



— Smaller. Head and greater part of thorax black. Radial a. undivided ...10. 



9. Abdomen black Uemichroa alni, L. 



— Abdomen coloured like head and thorax, i. e., reddish... 



Uemichroa crocea, Geoff. (= rufa, C). 



10. Pronotum broadly bordered all round with white. Femora with distinct black 



markings. Stigma in all ray $ specimens greyish-white. Abdomen obscurely 

 pale at the apex only Leptocercus duplex, Lep. (=- apicalis, C). 



Pronotum only pale at its extreme edge above. Femora without black. Stigma 



dusky. Ventral surface of abdomen pretty lai'gely rufescent (not only at 

 apex) Leptocercus luridiventris, Fall. 



NOTES ON CERTAIN OE THE ABOVE SPECIES. 



Irichiocampus eradiatus and drewseni. — As to these species there is a 

 puzzle which I cannot thoroughly solve. Comparing the original 



