Eumacrocyrtus robertfoxi, Enoplocyrtus angelalcalai, Analyn A. Cabras
Eumacrocyrtus robertfoxi and Enoplocyrtus angelalcalai. (Photos: Analyn A. Cabras)

In February 2024, descriptions of two new weevil species from the Philippines were published in ZooKeys.

๐™€๐™ช๐™ข๐™–๐™˜๐™ง๐™ค๐™˜๐™ฎ๐™ง๐™ฉ๐™ช๐™จ ๐™ง๐™ค๐™—๐™š๐™ง๐™ฉ๐™›๐™ค๐™ญ๐™ž

Distribution/habitat: Zambales, Luzon Island (holotype discovered in 1947)

Endemic: Yes

Distinctive traits: With a body length of 13.5 mm (close to the average size of a fingernail), ๐˜Œ. ๐˜ณ๐˜ฐ๐˜ฃ๐˜ฆ๐˜ณ๐˜ต๐˜ง๐˜ฐ๐˜น๐˜ช differs from the only other known species in the genus, ๐˜Œ. ๐˜ค๐˜ข๐˜ฏ๐˜ญ๐˜ข๐˜ฐ๐˜ฏ๐˜ฆ๐˜ฏ๐˜ด๐˜ช๐˜ด, in a number of ways, including a longer, thinner snout; a pronounced groove between the head and snout that gives it a discontinuous outline; a matte black exoskeleton (versus ๐˜Œ. ๐˜ค๐˜ข๐˜ฏ๐˜ญ๐˜ข๐˜ฐ๐˜ฏ๐˜ฆ๐˜ฏ๐˜ด๐˜ช๐˜ดโ€™s brown outer covering); and longer forewings.

Conservation status: Unspecified; known only by the type specimen

Described by: Analyn Cabras, Milton Medina, and Perry Buenavente

Etymology: The species is named after Robert Bradford Fox (1918โ€“1985), who collected the type material in Zambales. Fox was a pioneering anthropologist whose discoveries profoundly advanced our knowledge of pre-Hispanic Philippine history. Fox also discovered the remains of the โ€œTabon Manโ€ in Palawan, which, for a time, were regarded as the oldest human fossils in the country (until the age of ๐˜๐˜ฐ๐˜ฎ๐˜ฐ ๐˜ญ๐˜ถ๐˜ป๐˜ฐ๐˜ฏ๐˜ฆ๐˜ฏ๐˜ด๐˜ช๐˜ด a.k.a. โ€œCallao Manโ€ was determined via extensive testing).

๐™€๐™ฃ๐™ค๐™ฅ๐™ก๐™ค๐™˜๐™ฎ๐™ง๐™ฉ๐™ช๐™จ ๐™–๐™ฃ๐™œ๐™š๐™ก๐™–๐™ก๐™˜๐™–๐™ก๐™–๐™ž

Distribution/habitat: Palapag, Bontoc, Mountain Province (specimens discovered in 1985)

Endemic: Yes

Distinctive traits: With a body length of 8 to 8.2 mm (less than half the size of a 25-centavo coin), ๐˜Œ. ๐˜ข๐˜ฏ๐˜จ๐˜ฆ๐˜ญ๐˜ข๐˜ญ๐˜ค๐˜ข๐˜ญ๐˜ข๐˜ช is distinguishable from the only other known ๐˜Œ๐˜ฏ๐˜ฐ๐˜ฑ๐˜ญ๐˜ฐ๐˜ค๐˜บ๐˜ณ๐˜ต๐˜ถ๐˜ด species, ๐˜Œ. ๐˜ฎ๐˜ข๐˜ณ๐˜ถ๐˜ด๐˜ข๐˜ฏ, due to its corrugated, coarsely punctured thorax covering and forewings; tiny, almost hairlike white scales on some punctures; lance-shaped pale blue/pale turquoise scales on some parts of its body; and dark brown exoskeleton. Females have longer, wider wings; a narrower, flatter thorax covering; forelegs with flat middle segments; and a flatter abdominal segment.

Conservation status: Unspecified; known only from the type locality

Described by: Analyn Cabras, Milton Medina, and Perry Buenavente

Etymology: Named after National Scientist Angel Chua Alcala (1929โ€“2023), a pioneering marine scientist and herpetologist who, among other noteworthy accomplishments, identified over 50 species of reptiles and amphibians, authored over 160 journal publications, and significantly contributed to reef conservation in the Philippines. Additionally, the researchers credit Alcala as a source of inspiration for their work in Philippine biodiversity research and conservation.

Significance

After sitting undescribed for decades, the work done on identifying ๐˜Œ. ๐˜ณ๐˜ฐ๐˜ฃ๐˜ฆ๐˜ณ๐˜ต๐˜ง๐˜ฐ๐˜น๐˜ช and ๐˜Œ. ๐˜ข๐˜ฏ๐˜จ๐˜ฆ๐˜ญ๐˜ข๐˜ญ๐˜ค๐˜ข๐˜ญ๐˜ข๐˜ช sheds much-needed light on two of the many unique and unidentified specimens in the Zoological Collections of the Philippine National Museum. Prior to the description of ๐˜Œ. ๐˜ณ๐˜ฐ๐˜ฃ๐˜ฆ๐˜ณ๐˜ต๐˜ง๐˜ฐ๐˜น๐˜ช and ๐˜Œ. ๐˜ข๐˜ฏ๐˜จ๐˜ฆ๐˜ญ๐˜ข๐˜ญ๐˜ค๐˜ข๐˜ญ๐˜ข๐˜ช, their respective genera (๐˜Œ๐˜ถ๐˜ฎ๐˜ข๐˜ค๐˜ณ๐˜ฐ๐˜ค๐˜บ๐˜ณ๐˜ต๐˜ถ๐˜ด and ๐˜Œ๐˜ฏ๐˜ฐ๐˜ฑ๐˜ญ๐˜ฐ๐˜ค๐˜บ๐˜ณ๐˜ต๐˜ถ๐˜ด) each had only one species to represent them; in the case of ๐˜Œ. ๐˜ณ๐˜ฐ๐˜ฃ๐˜ฆ๐˜ณ๐˜ต๐˜ง๐˜ฐ๐˜น๐˜ช, its identification served as the first record of the ๐˜Œ๐˜ถ๐˜ฎ๐˜ข๐˜ค๐˜ณ๐˜ฐ๐˜ค๐˜บ๐˜ณ๐˜ต๐˜ถ๐˜ด genus in Luzon (Zambales), as ๐˜Œ. ๐˜ค๐˜ข๐˜ฏ๐˜ญ๐˜ข๐˜ฐ๐˜ฏ๐˜ฆ๐˜ฏ๐˜ด๐˜ช๐˜ด has only been recorded in Visayas (Negros). ๐˜Œ. ๐˜ณ๐˜ฐ๐˜ฃ๐˜ฆ๐˜ณ๐˜ต๐˜ง๐˜ฐ๐˜น๐˜ช and ๐˜Œ. ๐˜ข๐˜ฏ๐˜จ๐˜ฆ๐˜ญ๐˜ข๐˜ญ๐˜ค๐˜ข๐˜ญ๐˜ข๐˜ช highlight not only the value of natural history collections in scientific research, but also the urgent need for more scientists to closely study these overlooked treasures of the Philippines.โ€”MF


Reference:

Cabras AA, Buenavente PAC, Medina MN (2024) New species in the genera Eumacrocyrtus Schultze, 1923 and Enoplocyrtus Yoshitake, 2017 from Luzon Island, Philippines (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini). ZooKeys 1191: 23-33. https://doi.org/10.3897/zookeys.1191.110217

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