Semia
Creators: name: Emery, David L.
name: Lee, Young June
name: Pham, Hong-Thai
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadidae
Semia

description: Key to the males of the species of Semia
1. Fore wing radial crossvein not parallel but about right-angled to outer margin of fore wing; timbal cover well developed, dis- tinctly longer than tergite 2.................................................... 2 (S. klapperichi species group)
- Fore wing radial crossvein nearly parallel to outer margin of fore wing; timbal cover about as long as or shorter than tergite 2....................................................................................................3
2. Inner area of pronotum largely light coloured; uncal lobes with rounded apices........................... S. klapperichi
- Inner area of pronotum mostly black; uncal lobes with distinctly narrowed apices..................... S. magna sp. nov.
3. Body without median fascia continued from head to abdomen; uncal lobes without multiple spines.................... 4
- Body with median black to dark brown fascia continued from head to abdomen; uncal lobes with multiple spines on each lobe............................................................................................. S. spinosa
4. Uncal lobe without long extended projection protruding laterally from underside of uncus............................ 5
- Uncal lobe with long extended projection protruding laterally from underside of uncus, being laterally parallel to uncal lobe........................................................................................... S. gialaiensis
5. Hind wing with continuous infuscation along hind margins of apical cells 1–6.................................... 6
- Hind wing without continuous infuscation along hind margins of apical cells..................................... 7
6. Uncal lobes comparatively slender, with length about four times the width, tapering to subapex, with apex roundly expanded and slightly twisted longitudinally, in ventral view................................................. S. majuscula
– Uncal lobes comparatively broad, with length about three times the width, and parallel to each other from bases to truncated apices, in ventral view......................................................................... S. tibetensis
7. Uncal lobes very long, with length more than four times the central width........................................ 8
- Uncal lobes short, with length less than four times the central width............................................. 10
8. Abdominal tergite 8 covered with white pollinosity; uncal lobe in similar width from base to apex.....................9
- Abdominal tergite 8 without white pollinosity; uncal lobe with much widened apex.......................... S. lachna
9. Fore wing ulnar cell 2 comparatively long, with length more than four times the width; uncal lobes widened apically in lateral view; abdominal tergites 6 and 7 seldom covered with white pollinosity................................. S. watanabei
- Fore wing ulnar cell 2 comparatively short, with length less than four times the width; uncal lobes narrowed apically in lateral view; abdominal tergites 6 and 7 thickly covered with white pollinosity............................... S. hainanensis
10. Timbal cover moderately or well developed, with its anterior margin at similar level of or more anteriorly positioned than antero-median margin of tergite 2........................................................................ 11
- Timbal cover rudimentary, very short, with its anterior margin far behind (far more posteriorly positioned than) antero-median
margin of tergite 2.................................................................................. 12 11. Abdomen shorter than 1.6 times the length of head and thorax together; uncal lobes triangulate with narrowed apices, in ventral view.............................................................................. S. spiritus sp. nov. - Abdomen longer than 1.8 times the length of head and thorax together; uncal lobes wide, wider in apices than in bases, in ventral view............................................................................... S. pallida sp. nov.
12. Uncal lobes comparatively long, with length more than twice the width, nearly parallel to each other........................................................................................................ S. albusequi sp. nov.
- Uncal lobes very short, with length much less than twice the width, widely separated from each other........ S. brevidilata
description: Published as part of Emery, David L., Lee, Young June & Pham, Hong-Thai, 2017, Descriptions of four new species of Semia Matsumura (Hemiptera: Cicadidae: Psithyristriini) from Vietnam, with a key to the species of Semia, pp. 153-166 in Zootaxa 4216 (2) on pages 165-166, DOI: 10.5281/zenodo.230748