292 NEW YORK STATE MUSEUM 



Plate III. 

 Diplosis setigera. 



The Hairy Melan-vine Midge. 



Fig. I. — Normal segment of male antenna; a. a, arched filaments^ 

 ■• filets arques;" jc, s, ordinary setse. 



Fig. :. — Two normal segments of female antenna showing the ar- 

 rangement of the setae and special sense organs, two of 

 which are shown in projection at y, v. 



Fig. 3. — Extruded ovipositor ; c, tip much more enlarged. 



Fig. 4. — Lateral aspect of empodium and claws. 



All figures greatly enlarged. 



Plate IV. 

 Map, showing the Upper Austral Life-Zone in the State of New York^ 



Plate V. 

 Cottonwood beetle collecting machine, to be drawn by a horse. 



Plate Vl. 



Cottonwood beetle collecting machines, to be propelled by hand. 



Plate VU. 

 Collecting the Cottonwood beetle from a field of willows. 



Plate VI IL 



Fig. I. — The apple-tree bark-louse, MytiLt^sis J^marum (Bouche), on 

 apple bark. (After Comstock.) 



Fig. a. — The scurfy bark-louse, Cki<^nas^sis fitrfitms (Fitch): c?, the 

 female scales, and ^, the male scales, in natural size on twigs; 

 r, the female scale, enlarged ; dy the male scale, enlarged. 

 (h>om the Division of Kntomology, U, S. Dept. Agr. at 

 Washington.) 



Fig. 3. — The s^curfy bark-louse ; [«?]. the male; t, the young larva;/, 

 the male pupa; ,if, the (ewxale, from beneath — all enlarged; 

 K dy ^y ky. Structural delaiils of leg$ and antenoa, in greater 

 ealargemeut. (Kr<,)m the Pivision of Katomology, Washing- 

 ton. U. C.) 



