snowy tree cricket
Oecanthus fultoni

Drawings of (A) egg puncture of previous year healed over in apple bark, (B) recent egg puncture without plug, (C) egg puncture with plug, (D) egg in raspberry, (E) projection of egg cap, (F) egg cap, (G) egg in apple bark, by B. B. Fulton.
Fig 14, from Fulton 1915.