Peromyia dissona species group

Diagnosis:

Male antennal flagellomeres bear 2 whorls of hair-shaped translucent sensilla, one distal whorl of long sensilla and one basal whorl of shorter sensilla (Fig. 1A). Position of hair-shaped sensilla at the very bases of the flagellomere nodes is an unusual character state among peromyias, even though there are instances of sensilla that irregularly intermingle with the short subbasal setae that are universally present (see, for instance, Fig. 8A). Postocular bristles are usually arranged in 2 rows. Male terminalia have a diverse, often unusual structure, which is less pronounced in the representatives from Tasmania. This group gathers several species of previously uncertain affin-

ity: Peromyia dissona JASCHHOF, 2004 and P. praeclara JASCHHOF, 2004, both from New Zealand, P. ayaensis JASCHHOF, 2001 and P. valens JASCHHOF, 2001, both from Japan, and P. albicornis (MEIGEN, 1830), known to occur in the western Palaearctic and possibly Japan. Four new species from Tasmania also belong here.