New species of Kalimantanossus Yakovlev, 2011 (Lepidoptera, Cossidae: Cossinae) from Laos with the genus catalogue Author Yakovlev, Roman V. Altai State University, pr. Lenina 61, RUS- 656049 Barnaul, Russia. & Tomsk State University, pr. Lenina 36, RUS- 634050 Tomsk, Russia. Author Prozorov, Alexey M. 0000-0002-5668-0741 University of Sciences, Techniques and Technology of Bamako, BP 1805 Bamako, Mali. E-mail: alexeymprozorov @ gmail. com; https: // orcid. org / 0000 - 0002 - 5668 - 0741 Author Prozorova, Tatiana A. 0000-0003-3466-5249 Karl Marx st. 41, RUS- 432001 Ulyanovsk, Russia. E-mail: tatianaaprozorova @ gmail. com; https: // orcid. org / 0000 - 0003 - 3466 - 5249 Author Müller, Günter C. 0000-0002-5668-0741&0000-0002-7024-0179 University of Sciences, Techniques and Technology of Bamako, BP 1805 Bamako, Mali. E-mail: alexeymprozorov @ gmail. com; https: // orcid. org / 0000 - 0002 - 5668 - 0741 & Kuvin Center for the Study of Infectious and Tropical Diseases, Hadassah Medical School, The Hebrew University, Kalman Ya’akov Man St., 91120 Jerusalem, Israel. E-mail: guntercmuller @ hotmail. com; https: // orcid. org / 0000 - 0002 - 7024 - 0179 * Corresponding author. E-mail: yakovlev _ asu @ mail. ru; https: // orcid. org / 0000 - 0001 - 9512 - 8709 text Ecologica Montenegrina 2023 2023-11-22 69 154 159 http://dx.doi.org/10.37828/em.2023.69.15 journal article 10.37828/em.2023.69.15 2336-9744 13246438 urn:lsid:zoobank.org:pub:3AB88122-5296-4A09-ABE1-CF5EB588C5FA Kalimantanossus kongkeoi sp. n. https://zoobank.org/ urn:lsid:zoobank.org:act: 7F36A367-702B-4BEF-A803- AD 8E77182394 Figs 1 , 6 Type material . Holotype , male, Laos , Xiangkhouang Province , 10 km E Phonsavan , 1130 m , 19.497844 N , 103.294464 E , 14.05– 30.06.2019 , leg. T . & A. Prozorovs (coll. Günter Müller , Freising ; slide Prozorov 2022-0367). Description . Male ( Fig. 1 ). Length of fore wing 12 mm . Antenna about half of fore wing in length, bipectinate, setae 2.5−3 times longer than antenna stem diameter. Thorax and abdomen densely covered with brown scales. Fore wing light-creamy with poorly expressed brown pattern: poorly noticeable strokes along costal margin, round spot on wing basally, wide light-brown spot along anal margin of wing, poorly expressed wide oblique light-brown band postdiscally, series of tiny light-brown strokes submarginally, border very thin, brown, fringe mottled (brown at veins, creamy between veins). Hind wing light-brown without pattern, fringe mottled (brown at veins, creamy between veins). Male genitalia ( Fig. 6 ). Uncus tapered, wide, slightly narrowing to apex, apically semicircular; gnathos arms thick, short; gnathos robust, slightly narrowing in medium third, densely covered with tiny spikes; valve with well developed sacculus, two basal thirds of valve sclerotized, apical third of valve lanceolate, membranous; on costal edge of valve on border between medium and apical thirds – small sclerotized crest with uneven edge; transtilla process long, hook-like, poorly narrowing from basal end to apex, apex acute; juxta scaphoid with thin lamellar lateral processes; saccus well developed, wide, semicircular; phallus slightly shorter than valve, of medium thickness, slightly narrowing from basal end to apex, strongly curved in medium third, vesica aperture in dorso-apical position, about half of phallus in length, vesica without cornuti. Female unknown. Diagnosis . The new species clearly differs from K. microgenitalis in the series of characters: - the poorly developed brown pattern on the fore wing (in K. microgenitalis , the brown portion on costal margin of the fore wing is significantly wider and more contrasting, there are round brown spots on the costal margin of the fore wing, the submarginal reticulated pattern is more pronounced); - the uncus apically more extended, semicircular (in K. microgenitalis , the uncus is slightly more narrow, sharply narrowing to apex, apically acute); - the phallus strongly curved in medium third (in K. microgenitalis , the phallus is almost straight). Etymology . The species is named after Kongkeo Keomalavong (Phonsavan, Laos ), great friend and our host in Laos . Distribution . Central Laos . Flight period . June. Catalogue of the Genus