taxonID	type	description	language	source
03D887FD2A0DFF9AFC1C59843FAF7FEC.taxon	description	(Figs. 2, 3; Gregory et al., 2012: 12, fig. 2) Zoobank: urn: lsid: zoobank. org: act: 3 D 8 DCDF 5 - B 8 E 0 - 4980 - A 492 - 802 D 7 A 223 D 3 B Type material. Holotype: male (MNCN 20.04 / 20602), 27 May 2022, Fradelos, Braga, Portugal, (41 ° 21 ’ 16 ” N 8 ° 36 ’ 22 ” W), coll. L. P. da Silva. Paratypes: 2 females (INV 18000, INV 18001), 27 March 2022, same data as holotype; 1 male (JC 667), same data as holotype; 4 females (INV 18002, INV 18003, JC 668, MNCN 20.04 / 20568), same data as holotype. Diagnosis. Dark red coloration. Eye apparatus composed of single large ocellus. Integument with granulations. Antennae with scaly tubercles and 3 flagellar segments. Male pereopods 1 and 7 with sexual dimorphism. Male pleopods: endopod I with large triangular distal lobe; exopod I trapezoidal, with 2 very different hairy protuberances; endopod II very wide, narrowing sharply near tip; exopod II trapezoidal, lacking inner tip. Description. Maximum observed length: female 2.5 mm, male 2.1 mm. Coloration intense dark red (Fig. 2 A, B), stable in ethanol for at least 6 months, interrupted by light color from muscle attachments. Tegument covered by granulations (Fig. 2 A, B) with large triangular scale-setae with crenated edge surrounded by accessory scales (Fig. 3 A). Cephalon with 5 granulation rows, including 1 row on posterior edge. Pereon with 3 rows on first pereonite and 2 rows on remaining pereonites, plus another row on posterior edge of each tergite. These granulations fading towards posterior region. Pleon with row of small granulations on posterior edge of all pleonites. Eye apparatus formed by large ocellus (Fig. 2 B) in black pigmented spot. Antennules with 3 segments, last one with group of 3 long aesthetascs (Fig. 3 B). Antennae short, and not reaching posterior edge of 2 nd pereon tergite and presenting hairy tubercles (Fig. 3 C). Antennal flagellum composed of 3 segments, first the shortest, second with group of long aesthetascs inserted in middle and extending behind insertion of 3 rd segment. Pereopod 1 of both sexes bearing fan-shaped group of setae in carpus tip (Fig. 3 D). Male sexual characters: Pereopod 1 merus and carpus with hyaline scales (Figs. 2 C, 3 D), but in merus only present in distal half. Pereopod 7 merus with strong curved hook (Figs. 2 D, 3 E) inserted in middle and with small seta at hook tip. Pleopod I: endopod triangular, with large distal lobe (Fig. 3 F); exopod trapezoidal, with 2 hairy protuberances of very different sizes, internal one very small, external one very long and thick, getting progressively thinner until ending in sharp tip (Figs. 2 E, F, 3 G). Pleopod II: endopod surrounded by hyaline membrane (Figs. 2 G, 3 H), with distal segment 3 times longer than basal segment, sharply narrowing at two-thirds of its length, ending in fine but flattened tip (Figs. 2 H, 3 H); exopod trapezoidal, lacking distal tip and bearing small hairy protuberance surrounded by many fan-shaped setae; these setae also on inner and outer edges (Figs. 2 G, 3 I). Etymology. The specific epithet is a reference to gallaecus, a Latin word used by the Romans to identify the indigenous peoples who lived north of the Douro River in Portugal and a large part of Galicia (Spain). Ecology. Epigean species found below (or within) deep moist litter (usually> 10 cm), mostly composed of dead leaves of Q. robur. It was found together with Porcellio herminiensis Vandel, 1946 a, Porcellio debueni Dollfus, 1892, and Trichoniscus pusillus s. l. Brandt, 1833. Gregory et al. (2012) mentioned that it can also be found beneath dead wood and stones among leaf-litter. Distribution. The species is so far known from the northwest of Portugal, in the Minho region, and in the southwest of Galicia, Spain (Fig. 1). Remarks. Gregory et al. (2012) found females of 3 mm length and males of 2.25 mm. They also mentioned that all pigmentation is rapidly lost after preservation in alcohol.	en	da Silva, Julio Cifuentes Luis P. (2023): A new epigean species of Trichoniscoides (Isopoda: Oniscidea: Trichoniscidae) from the northwest of the Iberian Peninsula. Nauplius (e 2023016) 31: 1-9, DOI: 10.1590/2358-2936e2023016, URL: https://doi.org/10.1590/2358-2936e2023016
