Insectolaelaps diaperi Mašán, 2025, sp. nov.
Year: 2025
Type: other
Abstract: Insectolaelaps diaperi sp. nov. (Figures 14–27) Diagnosis Idiosoma broadly oval, with mostly strong, acicular and similarly long setae; setae j1, r2 and r3 on soft integument in deutonymph. Shield surface completely (dorsal and ventrianal shields, ventral shield of male) or only laterally reticulate (sternal and sternogenital shields), or punctate (anal shield) or smooth (genital shield, sternal shield of deutonymph). In females, sternal setae st1–st3 somewhat thicker than others, bases of st3 conspicuously close together; in deutonymph, st2 and st4 unusually placed on soft integument. Ventrianal shield with four pairs of opisthogastric setae (Jv1–Jv3, Zv2), strongly widened in anterior part, with distinct punctation near anus. Peritremes of adults short, reaching level between coxae II and III. Movable cheliceral digit with six to seven teeth in females and five to seven teeth in deutonymphs; male spermatodactyl thin, apically narrowed, moderately curved and longer than movable cheliceral digit. Genu III and tibia III with eight setae each; genu IV and tibia IV without conspicuously elongated dorsal setae. Male legs II and IV spurred, as in Figs 22A–C, 22E, 23; subapical spur of tarsus II well developed, with rounded apex. Description Female (Figs 14A, 15–17, 18C, 19A, 19B, 20A–20C, 21C, 27A). Dorsal idiosoma (Figs 14A, 15). Idiosoma 530– 660 μm long, 365–445 μm wide (n = 5), weakly dorso-ventrally flattened, elongate, suboval to obovate, completely covered by two dorsal shields. Podonotal shield 240–305 μm long, 350–440 μm wide, semicircular, strongly convex anteriorly, moderately curved laterally and almost straight or slightly convex posteriorly, with four weakly indicated medial scleronodules at level of setae r5, reticulate pattern on surface in anterior and lateral parts, and 22 pairs of setae (j1–j6, z1–z6, s1–s6, r2–r5). Opisthonotal shield 295–350 μm long, 350–440 μm wide, subpentagonal, widest at level between setae S1 and S2, with straight to slightly convex anterior margin, curved lateral margins slightly expanded ventrally, well-rounded posterior margin, reticulate surface and finely punctate medial area between setae J4 and J5; 20 pairs of opisthonotal setae, of which only R1 is located on the soft integument outside the shield. Most dorsal setae relatively stout, acicular and similar in length, except for short, needle-like setae z1 and J5 and elongate, whip-like setae Z5 and S5. Lengths of selected dorsal setae: j1 28–35 μm, j2 37–47 μm, j3 47–54 μm, j4 35–42 μm, j5 34–40 μm, j6 36–44 μm, z1 10–20 μm, z5 34–44 μm, s1 20 –29 μm, s5 and s6 54 –63 μm, r2 26–34 μm, r3 44–54 μm, J1 41–47 μm, J2 39–48 μm, J3 35–43 μm, J4 29–39 μm, J5 15–23 μm, Z1 57–63 μm, Z2 55–64 μm, Z3 39–46 μm, Z4 29–36 μm, Z5 125–175 μm, S1 50 –59 μm, S2 55 –66 μm, S3 49 –58 μm, S4 46 –52 μm, S5 140–190 μm, R1 25–35 μm, R2 25–33 μm, R3 27–38 μm, R4 29–37 μm, R5 32–40 μm. Ventral idiosoma (Figs 16, 17). Tritosternum normal for the genus. Presternal plates weakly sclerotized, transversely striate and separately connected to anterolateral margins of sternal shield. Sternal shield shorter than wide, 68–85 μm long in its better sclerotized part, 98–115 μm wide at the narrowest part between coxae II, with well-developed anterolateral and lateral corners, straight medial anterior and deeply concave posterior margins; lateral surface reticulate or with longitudinal lines, medial surface smooth or sometimes with very faint reticulate pattern in its anterior part; four pairs of sternal setae (st1–st4) and three pairs of slit-like lyrifissures (iv1–iv3), of which st1 on weakly sclerotized anterior part of shield; sternal setae st1–st3 similar in length and thickness, slightly thicker than st4 and other ventral setae, with following distances between them: st3↔st3 (48–60 μm) ≤ st1↔st1 (55–69 μm) <st2↔st2 (92–104 μm)
Author: Mašán, Peter
Language: English
Topic: Study of Mite Species
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W6912054780
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