Vanduzea arquata nymphs

1. Egg. 2. Egg mass. 3. Longitudinal section of stem showing position of egg at base of old bud scale. 4. First instar. 5. Second instar. 6. Third instar. 7. Fourth instar. 8. Fifth instar. 9. Adult female. 10. Adult male.

These drawings and captions are from the work of Professor W.D. Funkhouser, and first appeared in the journal Psyche. Funkhouser was one of the greats of entomology, and taught at Cornell University.

Funkhouser provided these lengths:

• Egg, 1.4 mm
• First instar nymph, 1.2 mm
• Second instar nymph, 2.0-2.5 mm
• Third instar nymph, 3.5-3.5 mm
• Fourth instar nymph, 3.0-4.5 mm
• Fifth instar nymph, 4.5-5.5 mm
• Adult female, 5.7 mm
• Adult male, 4.6 mm

Elsewhere on this site are photographs of the adults of Vanduzea arquata, the nymphs, and the attending ants.