Semia Matsumura, 1917: 195

Yang, Mingsheng & Wei, Cong, 2014, New species of the cicada genus Semia Matsumura (Hemiptera: Cicadidae) from China and a phylogeny of Semia spp. and their relatives based on molecular data, Journal of Natural History (J. Nat. Hist.) 48 (37 - 38), pp. 2307-2323 : 2308-2310

Semia Matsumura, 1917: 195

Type species: Leptopsaltria watanabei Matsumura, 1907

Remarks

This genus is very similar to Terpnosia but it differs from the latter in having no claspers behind the uncal lobes of the pygofer and the acutely pointed distal shoulder of pygofer. This genus is also similar to the Pomponia linearis species group, but it can be distinguished from the latter by the following characters: hind wing with zigzag infuscation along bases of apical cells 1 – 3; male abdomen widest across abdominal segment 4; and basal lobe of pygofer absent ( Lee 2012b) or short; uncus bifurcate, forming a pair of uncal lobes.

Key to species of Semia (based on males)

1. Hind wing with continuous infuscation along hind margins of apical cells 1 – 6 ................................................................................................... 2

– Hind wing without infuscation along hind margins of apical cells ............. 4

2. Timbal cover developed, longer than wide, timbal slightly exposed in dorsal view ........................................................................................... S. klapperichi

– Timbal cover rudimentary, wider than long, timbal mostly exposed in dorsal view ............................................................................................................. 3

3. Uncal lobe of pygofer tapering to subapex, with apex roundly expanded and slightly twisted longitudinally ………………………………… .... S. majuscula

– Uncal lobes of pygofer broad and parallel from bases to truncated apices ... ....................................................................................... S. tibetensis , sp. nov.

4. Abodomen with a broad central, brown band; uncal lobe of pygofer with two apical spines ................................................................................... S. spinosa

– Abodomen without central band; uncal lobe of pygofer without spines ..... 5

5. Uncal lobe of pygofer with a large projection protruding from below uncus and parallel with uncal lobe ................................................ Semia gialaiensis

– Uncal lobe of pygofer without projection protruding from below uncus ..... 6

6. Timbal cover developed, with timbal slightly exposed in dorsal view ......... ........................................................................................................ S. lachna

– Timbal cover rudimentary, with timbal mostly exposed in dorsal view ..... 7

7. Uncal lobes of pygofer short, semicircular and widely separated from each other ........................................................................... S. brevidilata , sp. nov.

– Uncal lobes of pygofer long, touching each other from bases to apices ..... 8

8. Pronotal collar without median black stripe; timbal cover without darker margin; uncus with a large triangular median cleft between bases of uncal lobes of pygofer ............................................................. S. hainanensis

– Pronotal collar with median black stripe; timbal cover with darker margin; uncus without triangular median cleft ....................................... S. watanabei