<i>Neurostigma xanthopterum</i> New, 1980 (Psocodea: Psocoptera: Epipsocidae): updated diagnosis, description of a female specimen, morphological variations and a checklist of all known species of the genus

Reategui, Natália Soares; Rafael, José Albertino; Silva-Neto, Alberto Moreira da

doi:10.11606/1807-0205/2022.62.052

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ARTICLE • Pap. Avulsos Zool. 62 • 2022 • https://doi.org/10.11606/1807-0205/2022.62.052 linkcopy

Neurostigma xanthopterum New, 1980 (Psocodea: Psocoptera: Epipsocidae): updated diagnosis, description of a female specimen, morphological variations and a checklist of all known species of the genus

Authorship SCIMAGO INSTITUTIONS RANKINGS

The holotype of the Neurostigma xanthopterumNew, 1980 is here illustrated based on photographs. We also describe and illustrate a previously unknown female individual that is assigned to this species. New records for five localities in the Brazilian state of Amazonas, one in the Brazilian state of Acre and another in the Brazilian state of Amapá, are presented. The mouthparts of both sexes are here describe and illustrate. Thirteen types of variation and anomalies in the fore-hindwing veins were found. We found unique patterns in the number and shape of transverse veins in the pterostigma between individuals. We also identified a large variation in the denticles present in the lacinia. Therefore, we suggest these variable characteristics (fore-hindwing veins and lacinia denticles) are not to be used for the diagnosis of species of this genus. A revised diagnosis of N. Xanthopterum is also presented.

Keywords:
Biodiversity; Epipsocetae; Neotropics; Taxonomy

Species	Sexes known	Distribuition
N. chaetocephalum Enderlein, 1900	Male	Peru
N. dispositum Roesler, 1940	Both	Brazil (Amazonas, Mato Grosso, Santa Catarina, São Paulo), México, Peru
N. enderleini New, 1980	Male	Brazil (Amazonas)
N. paucivenosum New, 1980	Male	Brazil (Amazonas),
N. Xanthopterum New, 1980	Male	Brazil (Amazonas), Colômbia
N. roesleri New, 1980	Female	Brazil (Amazonas)
N. furcivenula Badonnel, 1986	Female	Colômbia
N. radiatum Mockford, 1991	Male	Brazil (Roraima)
N. garcialdretei Mendivil-Nieto, Gonzalez-Obando & Carrejo-Gironza, 2020	Male	Colômbia
N. lienhardi González-Obando, Carrejo-Gironza, Mendivil-Nieto & Garcia-Aldrete, 2021	Male	Colômbia
N. mockfordi González-Obando, Carrejo-Gironza, Mendivil-Nieto & Garcia-Aldrete, 2021	Male	Colômbia
N. newi González-Obando, Carrejo-Gironza, Mendivil-Nieto & Garcia-Aldrete, 2021	Male	Colômbia
N. thorntoni González-Obando, Carrejo-Gironza, Mendivil-Nieto & Garcia-Aldrete, 2021	Male	Colômbia
N. valderramae González-Obando, Carrejo-Gironza, Mendivil-Nieto & Garcia-Aldrete, 2021	Male	Colômbia

Specimens of N. Xanthopterum	Right forewing	Left forewing	Rigth hindwing	Left hindwing
Male I	LFwH	LFwH	HwH	HwH
Male II	Type 5	Type 2	Type 10	Type 13
Male III	Type 6	Type 5	Type 9	Type 11
Male IV	Type 5	Type 5	Type 12	Type 11
Male V	Type 5	Type 4	Type 8	Type 9
Male VI	Type 5	Type 7	Type 11	Type 11
Male VII	LFwH	LFwH	HwH	HwH
Male VIII	Type 2	Type 1	Type 9	Type 9
Male IX	LFwH	LFwH	HwH	HwH
Male X	LFwH	LFwH	HwH	HwH
Male XI	LFwH	LFwH	HwH	HwH
Male XII	LFwH	LFwH	HwH	HwH
Male XIII	Type 5	Type 5	Type 12	Type 9
Male XIV	LFwH	LFwH	HwH	HwH
Female I	LFwH	LFwH	HwH	HwH
Female II	LFwH	LFwH	HwH	HwH
Female III	LFwH	LFwH	HwH	HwH
Female IV	LFwH	Type 3	HwH	HwH
Female V	LFwH	LFwH	HwH	HwH

Specimens of N. Xanthopterum	Number of pterostigma crossveins of right forewing	Number of pterostigma crossveins of left forewing
Male I	12 (Fig. 8A)	11 (Fig. 8B)
Male II	8 (Fig. 8C)	8 (Fig. 8D)
Male III	7 (Fig. 8E)	8 (Fig. 8F)
Male IV	9 (Fig. 8G)	7 (Fig. 8H)
Male V	9 (Fig. 8I)	9 (Fig. 8J)
Male VI	10 (Fig. 8K)	10 (Fig. 8L)
Male VII	12 (Fig. 8M)	14 (Fig. 8N)
Male VIII	9 (Fig. 9A)	9 (Fig. 9B)
Male IX	11 (Fig. 9C)	12 (Fig. 9D)
Male X	10 (Fig. 9E)	10 (Fig. 9F)
Male XI	13 (Fig. 9G)	12 (Fig. 9H)
Male XII	13 (Fig. 9I)	13 (Fig. 9J)
Male XIII	10 (Fig. 9K)	9 (Fig. 9L)
Male XIV	7 (Fig. 9M)	8 (Fig. 9N)
Female I	14 (Fig. 7A)	12 (Fig. 7B)
Female II	10 (Fig. 7C)	10 (Fig. 7D)
Female III	11 (Fig. 7E)	13 (Fig. 7F)
Female IV	12 (Fig. 7G)	12 (Fig. 7H)
Female V	11 (Fig. 7I)	11 (Fig. 7J)

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