Da. Polhemus, NYSIUS AA (HETEROPTERA, LYGAEIDAE), A NEW SPECIES OF MICROPTEROUS WEKIU BUG FROM THE SUMMIT OF MAUNA-LOA VOLCANO, HAWAII, Proceedings of the Entomological Society of Washington, 100(1), 1998, pp. 25-31
Nysius aa, a micropterous lygaeid bug, is described from the upper slo
pes of Mauna Loa volcano on the island of Hawaii. This new species app
ears to be the sister species of Nysius wekiuicola Ashlock and Gagne,
which is endemic to aeolian desert habitats in the summit region of ad
jacent Mauna Kea volcano. Detailed morphological comparisons between t
he two species are presented, accompanied by a distribution map and fi
gures of key characters.