Problepsis Lederer 1853
Creators: name: Xue, Dayong
name: Cui, Le
name: Jiang, Nan
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Geometridae
Problepsis

description: Key to Chinese Problepsis species
1. Male antennae bipectinate............................................................................... 2
- Male antennae dentate................................................................................. 12
2. Vertex white.......................................................................................... 3
- Vertex black.......................................................................................... 4
3. Ocellus of hind wing almost pyriform............................................................. P. plagiata
- Ocellus of hind wing indistinct, with two silvery white lines.......................................... P. apollinaria
4. Ocellus of each wing incomplete.............................................................. P. transvehens
- Ocellus of each wing complete........................................................................... 5
5. Ocellus of forewing rounded or almost rounded.............................................................. 6
- Ocellus of forewing inverted pyriform or oval, posterior part narrower than anterior part............................. 8
6. Male antenna with pectinations about three times the diameter of shaft; internal margin of apex of tegumen with acute spines in male genitalia; ductus brusae without sclerite extending to corpus bursae in female genitalia.................. P. albidior
- Male antenna with pectinations slightly longer than diameter of shaft; internal margin of tegumen without spines in male geni- talia; ductus brusae with a large sclerite extending to corpus bursae in female genitalia............................... 7
7. Female antenna dentate; ocellus on underside of the forewing densely diffused with dark greyish brown scales.. P. eucircota
- Female antenna filiform; ocellus on underside of the forewing without any greyish brown scales........ P. stueningi sp. nov.
8. Internal margin of tegumen with spines in male genitalia...................................................... 9
- Internal margin of tegumen without spines in male genitalia................................................... 10
9. Male antenna with pectinations longer than two times diameter of shaft; male hind tarsus about one-half the length of tibia; length of ductus brusae more than twice of its width in female genitalia................................... P. vulgaris
- Male antenna with pectinations slightly longer than diameter of shaft; male hind tarsus about one-third or shorter than one- third the length of tibia; length of ductus brusae less than twice of its width in female genitalia................. P. paredra
10. Underside of both wings mostly with heavy dark greyish brown suffusions.................... P. delphiaria auriculifera
- Underside of both wings mostly with white or greyish white suffusions.......................................... 11
11. Ocellus of each wing with smooth outer margin; anterior margin of juxta free from sacculus in male genitalia... P. subreferta
- Ocellus of each wing without smooth outer margin; anterior margin of juxta fused to sacculus in male genitalia.............................................................................................. P. batangnesis sp. nov.
12. Vertex black......................................................................................... 13
- Vertex white......................................................................................... 14
13. Grey band between ocellus of fore- and hind wing continuous, extending to anal margin................... P. conjunctiva
- Grey band between ocellus of fore- and hind wing incontinuous...................................... P. crassinotata
14. Underside of both wings with distinct dark greyish brown postmedial lines; Socii with lateral lobes in male genitalia.................................................................................................... P. diazoma
- Underside of both wings with indistinct or invisible postmedial lines; Socii without lateral lobes in male genitalia........ 15
15. Postmedial line of forewing broadened on costa............................................................ 16
- Postmedial line of forewing narrow and weak or invisible on costa............................................. 18
16. Ocellus of forewing very large, extending outwards, often covering postmedial line....................... P. phoebearia
- Ocellus of forewing normal not very large, not contacting with postmedial line.................................... 17
17. Submarginal spots of both wings smaller, ligher, not fused; fringes white mixed with grey........ P. discophora discophora
- Submarginal spots of both wings larger, darker, partly fused; fringes mostly dark grey to blackish grey.................................................................................................... P. discophora kardakoffi
18. Postmedial line of hind wing situated far from ocellus................................................. P. shirozui
- Postmedial line of hind wing close to ocellus........................................................ P. superans
description: Published as part of Xue, Dayong, Cui, Le & Jiang, Nan, 2018, A review of Problepsis Lederer, 1853 (Lepidoptera: Geometridae) from China, with description of two new species, pp. 101-127 in Zootaxa 4392 (1) on page 103, DOI: 10.11646/zootaxa.4392.1.5, http://zenodo.org/record/1195157