Psithyristria

Lee, Young June, 2010, Checklist of cicadas (Hemiptera: Cicadidae) of Luzon, Philippines, with six new species and revised keys to the species of Oncotympana Stål and Psithyristria Stål, Zootaxa 2621, pp. 1-26 : 15-16

Key to the species of Psithyristria

1 Forewing M4 derived from medial cell or junction of ulnar cell 3 and medial cell; medial cell larger than or about as large as ulnar cell 3 ...................................................................................................................................................... 2

- Forewing M4 derived from ulnar cell 3; medial cell distinctly smaller than ulnar cell 3 ................ simplicinervis Stål

2 Abdominal tergites without small round spots laterally; roundish spots on base of forewing M3 absent .................... 3

- Abdominal tergites 3–6 each with pair of small round spots laterally; distinct roundish spot on base of forewing M3 present ................................................................................................................................................... nodinervis Stål

3 Uncal lobe comparatively short, extending to about half length of pygofer, with or without spine on uncal lobes … 4

- Uncal lobe with pair of very long uncal lobes each deeply divided into two parts, lateral parts nearly extending to base of pygofer and with spine on their lateral margins, and medial parts about half as long as, and much thinner than, lateral parts ......................................................................................................................................................... 13

4 Anterolateral pronotal collar with distinctly protruding tooth..................................................................................... 5

- Anterolateral pronotal collar without well-protruding tooth, but sometimes with a few indistinct, minute teeth ...... 7

5 Timbal cover long and slender, length more than three times the median width; uncal lobes in ventral view with inner margins concavely curved at center, with tips flaring outward ............................................ grandis Lee & Hill

- Timbal cover short and comparatively wide, length less than three times the median width; uncal lobes in ventral view with inner margins not concavely curved ............................................................................................................ 6

6 Male abdominal tergites 7 and 8 densely covered with white pollinosity medially; forewing M+CuA less than onethird as long as forewing; uncal lobe simple, with one apex ............................................... albiterminalis Lee & Hill

- Male abdominal tergites 7 and 8 without white pollinosity; forewing M+CuA more than one-third as long as forewing; uncal lobe with pair of acute apices ................................................................................ incredibilis Lee & Hill

7 Anterolateral pronotal collar with a few minute, indistinct teeth; forewing M along medial cell very long, more than half as long as M+CuA; medial cell about 2.5 times as large as ulnar cell 3 .............................................................. 8

- Anterolateral pronotal collar with or without minute tooth; forewing M along medial cell short, less than half as long as M+CuA; medial cell less than twice as large as ulnar cell 3 .................................................................................. 9

8 Uncal lobe simple, with only one acute apex; distance across anterolateral margins of pronotal collar distinctly wider than head including compound eyes ...................................................................................................... specularis Stål

- Uncal lobe with pair of acute apices; distance across anterolateral margins of pronotal collar not wider than head including compound eyes .................................................................................................... paraspecularis Lee & Hill

9 Forewing CuA1 longer than or about as long as CuA2; R+Sc barely concave, M+CuA straight or barely curved ... 10

- Forewing CuA1 less than half as long as CuA2; R+Sc distinctly concave, M+CuA distinctly curved........................... ...................................................................................................................................................... peculiaris Lee & Hill

10 Junction of M3+4 and M4, if any, not enlarged; uncal lobes without spines or fin-like projections............................. 11

- M3+4 and M4 together forming nearly straight line, their junction enlarged and elevated; uncal lobe with one or two spines or fin-like projections ...................................................................................................................................... 12

11 Body comparatively smaller, 16.0–19.0 mm long; forewing nodal line distinct in medial cell; M2 derived from ulnar cell 3; CuA1 less than twice as long as CuA2; timbal cover very small, exposing most part of timbal .......................... .............................................................................................................................................................. tenuinervis Stål

- Body comparatively larger, about 22.2 mm long; forewing nodal line indistinct or absent in medial cell; M2 derived from ulnar cell 2; CuA1 about three times as long as CuA2; timbal cover well developed, covering most part of timbal ........................................................................................................................................................ paratenuis sp. nov.

12 Body comparatively larger, 20.2–22.1 mm long; uncal lobe without fin-like projections but with small lateral spine at about midway................................................................................................................................... crassinervis Stål

- Body comparatively smaller, about 18.7 mm long; uncal lobe with pair of narrow, sharply pointed fin-like projections extending downward from the apex and from the paramedian margin of the uncal lobe..... paracrassis sp. nov.

13 Ulnar cell 3 much less than twice as large as ulnar cell 2; distance between lateral edges of lateral part of uncal lobes about the same at the proximal ends and the distal ends; lateral parts of uncal lobes with thin and sharply pointed apex ........................................................................................................................................... moderabilis Lee & Hill

- Ulnar cell 3 about twice as large as ulnar cell 2; distance between lateral edges of lateral part of uncal lobes much greater at the proximal ends than the distal ends; lateral parts of uncal lobes with thick and blunt pointed apex ........ .......................................................................................................................................................... genesis Lee & Hill