208 Journal New York Entomological Society. [Voi. vii. 



EXPLANATION OF PLATE V, 



Fig. I. Larva, stage I, side view, X 60. 



Fig. 2. One of the branched horns (subdorsal tubercles of joints 4 to 12), en- 

 larged. 



Fig. 3. Rear view of the larva, stage I, showing the setce of the last~two seg- 

 ments. 



Fig. 4. I^arva, stage II, side view, X 4°- 



Fig. 5. One of the lateral tubercles more enlarged, showing setK and granules. 



Fig. 6. A lateral tubercle, stage III, much enlarged. 



Fig. 7. A subdorsal tubercle of the same stage. 



Fig. 8. A lateral depressed space (4) with skin granules, stage V. 



Fig. 9. The same, some of the granules more enlarged. 



Fig. 10. Skin gi'anules of stage VI, enlarged. 



Fig. II. Mature larva, .stage YII, dorsal view, X 5- 



Fig. 12. Skin granules of stage VII, enlarged. 



Fig. 13. Moth of Cochlidion avellaiia. 



A NEW GENUS OF COCHLIDIONID^ FROM 

 VIRGINIA. 



By Harrison G. Dyar. 



Isochaetes, gen. nov. 



Male antenna; shortly bipectinate to the tips, the pectinations longest centrally. 

 Palpi upturned, not reaching the vertex, yet nearly so, evenly, smoothly scaled, third 

 joint distinct, three times as long as wide. Legs slender, front and hind ones sparsely 

 hairy, middle legs densely tufted on tibia and two basal tarsal joints ; middle and hind 

 legs with long apical spurs. Venation as in Phobetron ; primaries with veins 2 and 3 

 separate, 7 from ape.x of cell, 8 to 10 stalked, veins all present; secondaries with 6 

 and 7 stalked, 8 anastomosing with cell to near middle ; costa conve.x ; pattern of 

 markings as in PJiobetron. 



I. beutenmulleri Hy. Edw. 



Male warm ochraceous ; thorax and fore wings marked ill-definedly with light 

 brown and dark purplish brown. Hind wings blackish, fringe and abdomen dull 

 ocherous. The pattern of markings recalls that of the female Phobetron pitheciuin. 

 The ocherous ground color is shaded with pale purplish; a brown, dentate t. a. line 

 on inner half of wing and a short basal streak ; a curved t. p. shaded band, traversed 

 by a small U-.shaped mark resting on veins 3 and 5, the open end outward ; this mark 

 and two dots on the fringe opposite the lower limb of the U, dark purple brown. 



