OECANTHIDI BLANCHARD, 1845

Campos, Lucas Denadai De, Dias, Pedro Guilherme Barrios De Souza, Audino, Jorge Alves, Desutter-Grandcolas, Laure & Nihei, Silvio Shigueo, 2023, The fifth family of the true crickets (Insecta: Orthoptera: Ensifera: Grylloidea), Oecanthidae defin. nov.: phylogenetic relationships and divergence times, Zoological Journal of the Linnean Society 197 (4), pp. 1034-1077 : 1050-1051

SUPERTRIBE OECANTHIDI BLANCHARD, 1845 SUPERTRIB. NOV.

Oecanthites Blanchard, 1845: 245. Saussure, 1874: 428. Saussure, 1878: 590.

Type genus: Oecanthus Serville, 1831 .

Distribution: Worldwide.

Diagnosis: Small to medium and generally slender crickets; head prognathous; pronotum longer than wide, caudal margin wider than cephalic margin in dorsal view; FWs generally hyaline; when present, mirror well developed, generally divided by two straight and parallel veins ( Fig. 6B ; Supporting Information, Fig. S3H ); apical field generally absent or sometimes shorter than mirror; auditory tympana oval and large present on inner and outer face of TI; inner ventral apical spur of TI and TII absent; FIII thin, proximal portion with similar width of distal portion in lateral view; dorsal spines of tarsomere of leg III absent ( Fig. 7A ); claws bifid ( Fig. 6C ; Supporting Information, Fig. S6G ). Male genitalia: ectophallic arc curved anteriorly; ectophallic apodeme generally short (Supporting Information, Fig. S8G ).

Included tribes: Oecanthini Blanchard, 1845 , Xabeini Vickery & Kevan, 1983

Incertae sedis: Paraphasius Chopard, 1927 , Apiculatus Yuan, Ma & Gu, 2022 (fossil), Birmanioecanthus Yuan, Ma & Gu, 2022 (fossil).

Figures

Figure 3. Time-calibrated phylogenetic tree of Oecanthidae. Divergence-time analysis under Bayesian inference based on four DNA markers and six fossil calibrating internal nodes (red asterisks). Red numbers are the mean ages of the nodes. Bars indicate 95% highest posterior density intervals for nodes of interest. Posterior probabilities different from 1 are indicated in black numbers on nodes. Inset A, lineages-through-time plot.

Figure 6. A, Neoxabea breƲipes, head dorsal view. Oecanthus sp.: B, male, pronotum and FW; C, claw. Scales: 1mm.

Figure 7. Neoxabea breƲipes. A, hind tibia and tarsi; B, hind tibia distal margin and tarsi, inner view; C, hind tibia distal margin and tarsi, outer view. Scales: 1mm. Abbreviations: see Material and methods.

Figure 8. Diatrypa (Diatrypa) tuberculata. A, female; B, male.