Scolytocis Blair, 1928

Mo, Da-Rui & Xu, Ji-Shan, 2022, Two new species of the tribe Xylographellini (Coleoptera: Ciidae) from Yunnan Province, China, Zootaxa 5219 (3), pp. 295-300 : 298

Key to Australian and Oriental species of Scolytocis Blair, 1928 (adults)

Updated from Souza-Gonçalves & Lopes-Andrade (2017)

1 Metatibiae with outer edge straight to barely rounded, usually with a clear distinction between outer and apical edges; spines of outer edge separated by one spine-width or more. If distinction of outer and apical edges of metatibiae is not clear, then TL less than 1.16 mm ..................................................................................... 6

- Metatibiae with outer edge broadly rounded, without a distinction between outer and apical edges; spines of outer edge very close to each other at apical half and TL at least 1.26 mm ...................................................... 2

2 Apical antennomere of club longer than preceding two antennomeres together..................................... 5

- Apical antennomere of club shorter than preceding two antennomeres together.................................... 3

3 Prosternum with a conspicuous longitudinal carina in front of coxae. TL less than 1.40 mm. Known from the Philippines........................................................................ Sc. philippinensis Lopes-Andrade, 2008

- Prosternum devoid of a longitudinal carina in front of coxae. Known from Southwest China.......................... 4

4 First abdominal ventrite of the male with a sex patch. TL more than 2.1 mm. Gaoligong Mountain, Yunnan, China....................................................................... Sc. danae Lopes-Andrade & Grebennikov, 2015

- First abdominal ventrite of the male devoid of sex patch. TL less than 2.1 mm. Wuliang Mountain, Yunnan, China.......................................................................................... Sc. multispinus sp. nov.

5 Prosternum biconcave. TL more than 1.70 mm. Known from the Philippines........... Sc. thayerae Lopes-Andrade, 2008

- Prosternum concave. TL less than 1.70 mm. Known from Fiji..................... Sc. zimmermani Lopes-Andrade, 2008

6 Pronotum with a rugose border along the posterior edge....................................................... 9

- Pronotum lacking a rugose border along the posterior edge, the surface similar to that of pronotal disc.................. 7

7 CL/FL at least 1.80. Known from Malaysia..................................... Sc. malayanus Lopes-Andrade, 2008

- CL/FL 1.60 or less.................................................................................... 8

8 Metatibiae with a clear distinction between outer and apical edges; outer edge straight and bearing few spines (usually three). Known from Samoa and Guam....................................................... Sc. samoensis Blair, 1928

- Metatibiae without a clear distinction between outer and apical edges); outer edge slightly rounded and bearing much more than three spines. Known from the Pohnpei Island ( Micronesia)......... Sc. insularis Souza-Gonçalves & Lopes-Andrade, 2017

9 Pronotum with interspaces of punctures smooth. Known from Australia............................................................................................ Sc. australimontensis Souza-Gonçalves & Lopes-Andrade, 2017

- Pronotum with interspaces of punctures microreticulate...................................................... 10

10 Posterior pronotal edge with a narrow rugose border. Metaventrite bearing a conspicuous and long discrimen. Known from the Philippines................................................................ Sc. werneri Lopes-Andrade, 2008

- Posterior pronotal edge with a broad rugose border. Discrimen short, not reaching the middle of metaventrite. Known from Northern New Zealand................................................. Sc. novaezelandiae Lopes-Andrade, 2008