Myrsidea carmenae Soto Madrid & Sychra, 2020

Ramon, Madrid, Soto, Old, Sychra, rich, Benedick, Suzan, Edwards, David P., Efeykin, Boris D., Fandrem, Marte, Haugaasen, Torbjørn, Teterina, Anastasia, Tomassi, Suzanne & Tolstenkov, Oleg, 2020, Diversity and host associations of Myrsidea chewing lice (Phthiraptera: Menoponidae) in the tropical rainforest of Malaysian Borneo, International Journal for Parasitology: Parasites and Wildlife 13, pp. 231-247 : 235-236

3.1.2. Myrsidea carmenae Soto Madrid & Sychra , new species

( Fig. 2A–D , 6A–B ).

Type host. Hypothymis azurea ( Boddaert, 1783) – Black-naped Monarch ( Monarchidae ).

Type locality. YSFMA in Sabah, MALAYSIA (4 ◦ 58 ′ N, 117 ◦ 4 ′ E) .

Type material. Holotype, ♀, MALAYSIA: YSFMA in Sabah (4 ◦ 58 ′ N, 117 ◦ 4 ′ E), ex Hypothymis azurea , 7.viii.2015 (Ram´on Soto Madrid) ( MMBC) . Paratypes, 1♀, 16 with the same data as holotype .

Other material. 1♀, 16, MALAYSIA: YSFMA in Sabah (4 ◦ 58 ′ N, 117 ◦ 4 ′ E), ex Terpsiphone affinis ( Blyth, 1846) – Blyth’ s Paradise-flycatcher ( Monarchidae ), 6.viii.2015 (Ram´on Soto Madrid) ( MMBC).

Diagnosis. According to male genital sac sclerite ( Fig. 2D ) M. carmenae sp.n. is morphologically closest to Myrsidea ishizawai Uchida (1926) from Zoothera dauma ( Latham, 1790) . Both sexes of M. carmenae can be easily separated from those of M. ishizawai by: 1) small number of outer dorso-lateral setae of first tibia (4 vs. more than 10), 2) smaller number of setae on sternites III–V (13–30 vs. 35–81), and 3) conspicuously smaller dimensions (for example TW 0.38–0.44 vs. 0.49–0.61; and TL of male 1.09–1.17 vs. 1.43–1.64, and TL of female 1.28–1.30 vs. 1.79–2.17).

Female (n = 3). As in Figs. 2A and 6A . Hypopharyngeal sclerites fully developed. Shape of head as in Fig. 2B . Length of DHS 10, 0.04–0.05; DHS 11, 0.09–0.10; ratio DHS 10/11, 0.38–0.48. Ls5, 0.05–0.06 long, latero-ventral fringe with 9–10 setae. Gula with 4–6 setae on each side. Pronotum with 6 setae on posterior margin and 3 short spiniform setae at each lateral corner. Prosternal plate with rounded anterior margin ( Fig. 2A ). First tibia with 3 outer ventro-lateral and 4 dorso-lateral setae. Mesonotum divided. Metanotum not enlarged, with 4–6 marginal setae; metasternal plate with 6–7 setae; metapleurites with 3 short strong spiniform setae. Femur III with 12–15 setae in ventral setal brush. Tergites not enlarged, all with straight posterior margin. Abdominal segments with well-defined median gap in each row of tergal setae ( Fig. 2A ). Tergal setae (postspiracular setae and on tergites II–VIII also short associated setae are not included): I, 9–11; II, 9–10; III, 9–11; IV, 10–12; V, 9–10; VI, 7–9; VII, 4; VIII, 4. Postspiracular setae very long on II, IV, VII and VIII (0.39–0.54); long on I (0.24–0.31); and short on III, V and VI (0.14–0.19). Inner posterior seta of last tergum longer than anal fringe setae with length 0.10–0.13; length of short lateral marginal seta of last segment, 0.05–0.06. Pleural setae: I, 5–6; II, 5–7; III, 6–9; IV, 7–8; V, 6–7; VI, 5; VII, 4–5; VIII, 3. Pleurites with only short spine-like setae. Pleurite VIII with inner setae (0.06–0.10) as long as outer (0.04–0.06). Anterior margin of sternal plate II with a medial notch. Sternal setae: I, 0; II, 4 in each aster, aster setae length: s1, 0.08–0.09; s2, 0.06–0.09; s3, 0.05–0.06; s4, 0.03–0.04; with 10–12 marginal setae between asters, 4–6 medioanterior; III, 20–21; IV, 23–26; V, 28–30; VI, 21–25; VII, 9–10; VIII–IX, 8–12; and 8 setae on deeply serrated vulval margin; sternites III–VII without medioanterior setae. Anal fringe formed by 27–32 dosral and 26–30 ventral setae.

Dimensions: TW, 0.42–0.44; POW, 0.33–0.35; HL, 0.28–0.29; PW, 0.26–0.27; MW, 0.36–0.38; AW, 0.50–0.52; ANW, 0.17–0.18; TL, 1.28–1.36.

Male (n = 2). As in Fig. 6B . Similar as female except as follows. Length of DHS 10, 0.03–0.04; DHS 11, 0.08–0.09; ratio DHS 10/11, 0.35–0.45. Ls5, 0.04–0.05 long, latero-ventral fringe with 9 setae. Gula with 4–5 setae on each side. Metanotum not enlarged with 3–4 marginal setae (the most posterolateral setae are not counted); metasternal plate with 5–6 setae; metapleurites with 3 short spiniform strong setae. Femur III with 10–12 setae in ventral setal brush. Abdominal segments with well-defined median gap in each row of tergal setae. Tergal setae (postspiracular setae and on tergites II–VIII also short associated setae are not included): I, 5; II, 6–7; III, 6–9; IV, 6–9; V, 7; VI, 6; VII, 4; VIII, 4;

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length of longer inner tergal seta on abdominal segment VII (as defined in Hellenthal and Price, 2003), 0.06. Postspiracular setae very long on II, IV, VII and VIII (0.31–0.51); long on I (0.20–0.26); and short on III, V and VI (0.10–0.19); Length of inner posterior seta of last tergum, 0.03–0.05; short lateral marginal seta of last segment, 0.02. Pleural setae: I, 3–4; II, 5–6; III, 5–6; IV, 5; V, 5; VI, 4–5; VII, 3–4; VIII, 3. Pleurites with only short spine-like setae. Pleurite VIII with inner setae (0.04) as long as outer (0.03). Anterior margin of sternal plate II with a medial notch ( Fig. 2C ). Sternal setae: I, 0; II, 4 in each aster, aster setae length: s1, 0.07–0.08; s2, 0.06; s3, 0.05–0.06; s4, 0.03–0.04; with 8–9 marginal setae between asters, 4–6 medioanterior; III, 13–14; IV, 13–20; V, 20–25; VI, 15–16; VII, 5–7; VIII, 4; remainder of plate, 6; and with 4 setae posteriorly; sternites III–VII without medioanterior setae. With 8 internal anal setae. Genital sac scleriteas in Fig. 2D .

Dimensions: TW, 0.38–0.42; POW, 0.30–0.33; HL, 0.27–0.28; PW, 0.23–0.25; MW, 0.31–0.34; AW, 0.39–0.42; GW, 0.10; GL, 0.36–0.38; ParL, 0.07–0.08; GSL, 0.30–0.32; TL, 1.09–1.17.

Etymology. This species epithet is named in honor of Carmen Madrid Martínez, mother of the first author.

Figures

Fig. 2. Myrsidea carmenae sp.n. A, dorso-ventral view of female thorax and abdomen; B, head shape; C, male metasternal plate and sternites I–II; D, male genital sac sclerites.

Fig. 6. Habitus. Myrsidea carmenae sp.n. A-B, holotype female (A), paratype male (B). Myrsidea franciscae sp.n. C-D, holotype female (C), paratype male (D).