52 [August, 



Agallia. 

 (4) 1. Pronoturn twice, or nearly twice, as long as the crown. In- 

 sects macropterous. 



(3) 2. Pronotum faintly punctured puncticeps. 



(2) 3. Pronotum transversely striate venosa. 



(1) 4. Pronotum only slightly longer than the crown. Insect bra- 



chypterous brachyptera. 



Maceopsis. 



(2) 1. Elytra pale bluish-green, very finely punctured with black. 



Length, about If lines microcephala. 



(1) 2. Elytra bright green (?) or reddish-testaceous ( <J ). Length, 



about 3£ lines lanio. 



Idiocekus. 



(4) 1. 1st and 2nd apical areas of elytra sub-equal in length, i. e., their 



bases level, or nearly so. 



(3) 2. Cheeks densely white pubescent adustus. 



(2) 3. Cheeks bare lituratus. 



(1) 4. 1st apical area much longer than 2nd. 



(6) 5. 1st sub-apical area triangular or 5-sided, reaching the costa varius. 



(5) 6. 1st sub-apical area parallel-sided, not reaching the costa. 



(8) 7. Nerves of elytra chequered with black and white Heydeni. 



(7) 8. Nerves of elytra not chequered. 



9. Elytra with a white H on each H-album. 



10. Elytra white, their base, and a broad transverse band in the 



middle, brown tremulce. 



11. Elytra with a white transverse band beyond the apex of the 



clavus laminatus. 



(15) 12. Elytra yellow or greenish-yellow, generally with a reddish- 

 brown tinge. 



(14) 13. Side margins of face at most faintly sinuate. Antennal plate 



in g oval, abrupt pop nil. 



(13) 14. Side margins of face obtuse angularly indented. Antennal 



plate in £ gi'adual and very narrow ...fulgidus. 



(12) 15. Elytra white cowfusus. 



Bythoscopus. 



(4) 1. Face (seen in profile) somewhat flattened. 



(3) 2. Wings fumose in g , hyaline with a fumose border in $ . 



Genital plate in ? semicircularly emarginate alni. 



(2) 3. Wings hyaline, with a fumose border in both sexes. Genital 



plate in ? triangularly emarginate rufusculus. 



(1) 4. Face strongly rounded. Wings as in alni fiavicollis. 



Pediopsis. 



1. Elytra whitish, nerves of corium pale, of membi'ane dark nanus. 



2. Elytra whitish, nerves of coi'ium and membrane green virescens. 



3. Posterior tibiae with two short black streaks on the inner side, 



one near the apex, the other near the base tibialis. 



4. Posterior tibia? not as above. 



(14) 5. Face distinctly spotted with black. 



