A new species and a new record of Zoicinae Lehtinen & Hippa, 1979 (Araneae: Lycosidae) from Sumatra Island, with notes on miniaturization in wolf spiders

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  A new species and a new record of Zoicinae Lehtinen & Hippa, 1979 (Araneae: Lycosidae) from Sumatra Island, with notes on miniaturization in wolf spiders Abstract A new species of wolf spider, Zoica veloxilla sp. nov., from Sumatra (Indonesia) is described based on both sexes. Lysania pygmaea Thorell, 1890 is recorded from Sumatra for the first time, and its male is illustrated and redescribed. A distribution map for Zoica and Lysania is provided. The problem of miniaturization in wolf spiders is briefly discussed. Based on an analysis of the literature, 32 minute species of wolf spiders in four subfamilies and eleven genera have been reported. The smallest wolf spider known worldwide seems to be Zoica minuta (McKay, 1979) from Australia. Omelko, M.M. & Fomichev, A.A. (2026) A new species and a new record of Zoicinae Lehtinen & Hippa, 1979 (Araneae: Lycosidae) from Sumatra Island, with notes on miniaturization in wolf spiders. Zootaxa, 5869 (2), 339–350. https://doi.o...

A NEW SPECIES OF THE GENUS Macrinus SIMON, 1887 (ARACHNIDA: ARANEAE: SPARASSIDAE) FROM NORTHERN BRAZIL

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A NEW SPECIES OF THE GENUS Macrinus SIMON, 1887 (ARACHNIDA: ARANEAE: SPARASSIDAE) FROM NORTHERN BRAZIL

Abstract

The genus Macrinus Simon currently includes six species occurring mostly in South America, with records from the island of Tobago, Venezuela, Guyana, Ecuador, Bolivia and Brazil. A single species is found in the Mohave desert in California, USA. In this paper, I describe a new species of Macrinus based on a single female from the state of Pará, northern Brazil. The new species can be easily distinguished from its congeners by the shape of the median septum in the epigyne resembling a chess pawn. In addition, I provide new records for M. succineus Simon, M. pollexensis (Schenkel) and M. jaegeri Rheims and an updated distribution map for all South American species.

Rheims, C. A. (2025) “A NEW SPECIES OF THE GENUS Macrinus SIMON, 1887 (ARACHNIDA: ARANEAE: SPARASSIDAE) FROM NORTHERN BRAZIL”, Boletín de la Sociedad Zoológica del Uruguay, 34(1), p. e34.1.4. doi: 10.26462/34.1.4.