Journal of Insect Biodiversity

**Resurrection and redescription of Crematogaster discinodis Emery, 1893 stat. rev. and Crematogaster latipetiolata Karawajew, 1935 stat. nov. (Hymenoptera: Formicidae)**

SHINGO HOSOISHI — 2026-03-05

Crematogaster discinodis Emery, 1893 stat. rev. is raised to the species rank from the subspecies of Crematogaster subnuda. Crematogaster latipetiolata Karawaiew, 1935 stat. nov. is raised to the species rank from the subspecies of Crematogaster brunnea. The worker castes of C. discinodis and C. latipetiolata are redescribed based on nest series samples collected from Southeast Asia. We also provide information on the intraspecific morphological variations of C. discinodis and C. latipetiolata.

**Two new species of Neurigona Rondani, 1856 (Diptera: Dolichopodidae) from Sakhalin, Russia, with a key to species from the Palaearctic Far East**

IGOR YA. GRICHANOV — 2026-03-05

Neurigona polevoii Grichanov sp. nov. and Neurigona humalai sp. nov. from the southern part of the Sakhalin Island in the Russian Far East are described and illustrated and associated with the Neurigona pallida species group. A key to twenty five Neurigona Rondani species known from the Palaearctic Far East is provided. The World fauna of the genus contains now 170 species and the Palaearctic fauna has increased to 44 species. In all, 77 long-legged flies are known from the Island of Sakhalin.