New psocids (Psocodea: Prionoglarididae, Psyllipsocidae) from Cretaceous Burmese amber deposits

Corentin Jouault (1) , Kazunori Yoshizawa (2) , Marina Hakim (3) , Diying Huang , André Nel (4)

1 GR - Géosciences Rennes
2 Hokkaido University [Sapporo, Japan]
3 Chinese Academy of Sciences [Nanjing Branch]
4 ISYEB - Institut de Systématique, Evolution, Biodiversité

Palaeosiamoglaris hkamtiensis sp. nov. of the family Prionoglarididae is described from Hkamti amber (ca. 110 Ma), together with Psyllipsocus myanmarensis sp. nov., the third fossil psyllipsocid species described from from Noije Bum Hill (ca. 98 Ma). Based on the current observations of Palaeosiamoglaris hkamtiensis sp. nov., we discuss the synapomorphic characters proposed to define the tribe Siamoglaridini. Palaeosiamoglaris hkamtiensis sp. nov. is, inter alia, characterized by the maxillary palpomere 3 ca. 0.66 time as long as maxillary palpomere 4, the second anal vein concavity turned toward posterior wing margin in forewing, Sc reaching R1 nearly at middle of radial cell. The new species Psyllipsocus myanmarensis sp. nov. is, inter alia, characterized by antennae with 11 segments, the radial cell closed and six-angled, and the quadrangular pterostigma.

Keywords: Insecta; Psocodea; Prionoglaridetae; Psyllipsocetae; Hkamti

Domains: Paleontology

Corentin Jouault, Kazunori Yoshizawa, Marina Hakim, Diying Huang, André Nel. New psocids (Psocodea: Prionoglarididae, Psyllipsocidae) from Cretaceous Burmese amber deposits. Cretaceous Research, 2021, 126, pp.104890. ⟨10.1016/j.cretres.2021.104890⟩. ⟨insu-03227758⟩