Two new species of Philopteroides (Phthiraptera: Ischnocera: Philopteridae) of the beckeri species-group, from New Guinean painted berrypeckers (Aves: Passeriformes: Paramythiidae)

Abstract

Two new species of the louse genus Philopteroides Mey, 2004 are described and illustrated from two host species of painted berrypeckers, endemic to New Guinea: Philopteroides sinancorellus n. sp. ex Oreocharis arfaki (Meyer, 1875) (tit berrypecker), and Philopteroides gigas n. sp. ex Paramythia montium De Vis, 1892 (crested berrypecker). Both louse species belong to the beckeri species-group based on their short, broad preantennal areas, and shallow median indentations of the hyaline margin. The description of these two new species brings the total number of Philopteroides species to 15. An amended key to the beckeri species-group is included.

Morphological revision of the hyperdiverse Brueelia-complex (Insecta: Phthiraptera: Ischnocera: Philopteridae) with new taxa, checklists and generic key

“…An extensive system of nomenclature for the chaetotaxy of the first three leg segments is proposed in Fig. 25, based on Najer et al (2016). Abdominal chaetotaxy (Fig.…”

New records of Philopterus (Ischnocera: Philopteridae) from Acrocephalidae and Locustellidae, with description of one new species from Regulidae

“…In addition, the presence of the ats (= anterior tergal seta), introduced by Cicchino & Castro (1996), is also assessed. In the head chaetotaxy the pts = posttemporal seta is added, which was not visible in material studied by Najer et al (2016). The ms = mental setae were not mentioned in any previous Philopterus-related literature but we observed them in all examined specimens, so we introduce the term here.…”

“…The terminology, dimensions taken and chaetotaxy of head and body follow Najer et al (2016). Leg chaetotaxy follows Gustafsson et al (2019).…”

“…To draw the figures, the following procedure was followed: drawings were made with (1) a CX21FS1 light wide-field upright microscope (Olympus, Tokyo, Japan) fitted with a drawing tube; after drawing, the illustrations were edited using Adobe Illustrator CS6 on a tablet PTZ-930 (Wacom, China); or (2) a Nikon Eclipse TI-E inverted light microscope (Nikon, Tokyo, Japan) fitted with an Andor Clara camera (Oxon, United Kingdom); background photos for the drawings were taken using NIS Elements 4.50.00 LO (Nikon, Tokyo, Japan); after drawing, the illustrations were edited using GIMP (available on https://www.gimp.org, downloaded in October 2018) on an Intuos 3 PTZ-1230 tablet (Wacom, China). All dimensions are given in millimeters and were taken using an optical scale in the light microscope, between the same points as explained in Najer et al (2016) and shown in Figs 2-3. The nomenclature of setae presented by Gustafsson & Bush (2017) for the Brueelia complex was partially applied here for setae that were not assessed in Najer et al (2016).…”

“…All dimensions are given in millimeters and were taken using an optical scale in the light microscope, between the same points as explained in Najer et al (2016) and shown in Figs 2-3. The nomenclature of setae presented by Gustafsson & Bush (2017) for the Brueelia complex was partially applied here for setae that were not assessed in Najer et al (2016). This concerns in particular the abdominal setae, with the difference that psps (postspiracular principal setae) and tps (tergal posterior setae) could not be distinguished in Philopterus from Acrocephalidae and Regulidae, so they are counted together and presented as tcs (tergocentral setae) in this paper.…”