Panorpa longititilana Issiki, 1929b
Diagnosis: Vertex of head and nota of thorax uniformly dark brown to black. Male hpovalves narrow, with medial cleft reaching almost to base of 9th sternite; hypovalves do not reach apex of basistyles. Ventral parameres branched at base, with medial branches obliquely angled to almost touch medially; lateral branches evenly curved, extending beyond basal tooth of dististyles, with apical cluster of long setae. Dorsal valves divided into sclerotized medial portion and membranous lateral portion with indentation between them, with dark mass at base of medial cleft between dorsal valves. Basal lobe of dististyle with three teeth.
Distribution – Geographical: Mt. Rantaisan, 21 May 1928, S. Issiki, 2♂♂, 3♀♀ (depository ?).
Distribution – Temporal: Only known from late May.
Ecology: This species appears to inhabit cool, moist, montane forests.
Biology: Nothing is known of immature stages or life cycle.
Notes: This species is very similar to Panorpa nokoensis. However, Issiki (1929b) pointed out five differences between the two species: Panorpa longititilana has 1) a row of very fine hairs along the inner margin of the branches of the hypandrium [ = hypovalves], 2) apical branches of epiandrium [9th tergite] a little longer and narrower, 3) basal teeth along the inner edge of the dististyles more pronounced, 4) ventral valves longer, more curved; medial branch somewhat shorter, 5) the membranous portion of dorsal valves more prominent, That being said, Issiki (1929b) suggested that these differences may only be subspecific variations.
Issiki & Cheng (1947) designated a ♀ allotype, but no lectotype was ever designated.
The name “longititilana” refers to the long lateral branches of the male ventral parameres.
Issiki, S. 1929b. Descriptions of new Mecoptera from the Japanese Empire. Transactions of the Natural History Society of Formosa 19:260-314.
Issiki, S. and F.-Y. Cheng. 1947. Formosan Mecoptera with Descriptions of New Species. Memoirs of theCollege of Agriculture, national Taiwan University, 1:1-17