Hypoaspis integer Berlese 1911
Creators: name: Trach, V. A.
name: Joharchi, O.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Mesostigmata
Laelapidae
Hypoaspis
Hypoaspis integer

description: <i>Hypoaspis integer</i> Berlese, 1911 <i>Hypoaspis integer</i> Berlese, 1911: 186. Material. Ukraine, Odesa Region, Kiliya District, vicinity of Primorske (45.53 N, 29.67 E), meadow, on <i>Polyphylla fullo</i>, 15.07.2002, 3 &amp;female; (M. O. Son); Bilgorod-Dnistrovsky District, vicinity of Zatoka (46.02 N, 30.40 E), Black Sea Coast, on <i>P. fullo</i>, 4.07.2010, 11 &amp;female;, 2 Ơ (V. A. Trach). D i s t r i b u t i o n. Czech Republic (Costa, 1971); France (Samši&amp;ncaron;ák, 1960); Germany (Costa, 1971); Kyrgyzstan (Karg, Rössner, 1999); Poland (Haitlinger, 2012); “Prussia” (Costa, 1971); ”Southern Russia ” (possibly Ukraine) (Costa, 1971); Spain (Karg, Rössner, 1999); Ukraine (<b>first record</b>). Hosts. <i>Oryctes nasicornis</i> (Linnaeus, 1758) (Berlese, 1911; Samši&amp;ncaron;ák, 1960; Costa, 1971); <i>Polyphylla fullo</i> (Costa, 1971; Karg, Rössner, 1999; Haitlinger, 2012; this study); <i>P. tridentata</i> Reitter, 1890 (Karg, Rössner, 1999). <b>Redescription.</b> Adult female (n = 5) (figs 1–9) Idiosomal dorsum (fig. 1). Dorsal shield oval; 828–911 long and 409–493 maximum width at <i>r5</i>; shield smooth in central part and reticulate along antero-lateral and post-lateral margins. Dorsal shield with 38 (or 39) pairs of setae; 21 (or 22) pairs of setae on podonotal shield (<i>j1–j6</i>, <i>z1–z5</i>, <i>s1–s6</i>, <i>r3–r6</i>), seta <i>z6</i> bilaterally present in 1 specimens, unilaterally present in 3 and completely absent in 7 from investigated 11 mites; 17 pairs of setae on opisthonotal shield (<i>J1–J5</i>, <i>Z1–Z5</i>, <i>S1–S5</i> and 2 pairs of <i>Zx</i> setae) and 21 pairs of distinguishable pores. Soft cuticle with setae <i>R1</i> <i>– R7</i>. All dorsal setae smooth and pointed; setae <i>Z4</i>, <i>R6</i> and <i>R7</i> wavy; seta <i>Z4</i> longest; measurements of some setae: <i>j1</i> 63–92, <i>j6</i> 71–84, <i>J5</i> 38–59, <i>z1</i> 25–34, <i>z4</i> 151–197, <i>Z1</i> 63–76, <i>Z5</i> 101–113, <i>s5</i> 143–176, <i>R5</i> 105–160, <i>R6</i> 210–252, <i>R7</i> 147–189. Idiosomal venter (fig. 2). Tritosternum with paired pilose laciniae, base elongated, 50–59 long, 25–29 wide at base, laciniae free for most of total length (134–151), and fused for 13–21 long. Pre-sternal area weakly sclerotised. Sternal shield fused with endopodal platelets of coxae I/II and coxae II/III; 126–139 long midline, 185–218 wide at level of endopodal platelets of coxae I/II, 210–239 wide at level of endopodal platelets of coxae II/III, 118–130 wide at narrowest level between coxae II; with slightly concave anterior margin and concave irregular posterior margin; with 3 pairs of setae (<i>st1</i> 46–55, <i>st2</i> 46–59, <i>st3</i> 42–55), setae <i>st1</i> and <i>st2</i> not reach base of next posterior setae; sternal shield bearing 2 or 3 pairs of pores (<i>iv1</i>, <i>iv2</i> located on shield, <i>iv3</i> located on shield or on soft cuticle); surface of shield with reticulation. Metasternal platelets absent; setae <i>st4</i> (42–50) located on soft cuticle. Endopodal platelets formed between coxae III and IV. Genital shield tongue-shaped; length 269–319, maximum width 126–151, posterior margin rounded, surface with reticulate ornamentation, genital setae <i>st5</i> (38–46) on edge of the shield; genital pores placed off shield. Parapodal platelets free. Anal shield rounded triangular; 126–134 long and 92–109 maximum wide; smooth; bearing pair of para-anal setae (46–59) and unpaired post-anal seta (43–42); cribrum well developed. Soft cuticle around of anal shield with 2–3 pairs of elongate metapodal platelets, 13 pairs of setae (<i>JV1–JV5</i>, <i>ZV1–ZV4</i>, 2 pairs setae of <i>UR</i> - series) and 5 pairs of distinguishable pores. All ventral setae smooth and pointed; setae <i>JV4</i> and <i>JV5</i> wavy; measurements of some setae: <i>JV1-JV3</i>, <i>ZV1-ZV3</i> 50–92, <i>JV4</i> 105–139, <i>JV5</i> 210–286, <i>ZV4</i> 147–210, <i>UR</i> 84–147. Peritrematal shields free from exopodal plate; with 5 pairs of distinguishable pores; peritreme extending from anterior margin of coxa IV to mid-level of coxa I. Spermathecal apparatus not seen. Gnathosoma (figs 3–6). Epistome triangular, irregularly denticulate (fig. 3). Subcapitulum 185–227 wide at widest level. Hypostomal groove with 6 rows of 12–20 denticles, and smooth anterior and posterior transverse lines (fig. 4). Hypostome with 4 pairs of smooth and pointed setae; seta <i>hp3</i> longest (97–105), <i>pc</i> 38–55, <i>hp1</i> 34–50, <i>hp2</i> 38–50. Corniculi entire, symmetrical, robust and horn-like, reaching mid-level of palp femur. Internal malae with two pairs of lobes; inner lobes longer, pointed, with serrated edges, projecting beyond tips of corniculi; outer lobes shorter than corniculi, with serrated edges. Labrum strongly projecting beyond tips of internal malae. Palp length from trochanter to tarsus 252–277; setal formula: 2–5–6–14–15; palpfemoral seta <i>al</i>, palpgenual setae <i>al1</i> and <i>al2</i> weakly spatulate, palptarsal apotele 2-tined, other setae simple (figs 4, 5). Fixed cheliceral digit with large median and preapical teeth, small 10–15 teeth, pilus dentilis, curved dorsal seta, dorsal and lateral pores; movable digit with 2 large teeth and fringed arthrodial corona; second cheliceral segment length 218–231 (from base to apex of fixed digit), movable digit length 92–105 (fig. 6). Legs (figs 7–9). Lengths: I 725–809, II 586–688, III 623–763, IV 846–1042. Leg chaetotactic formulae normal for genus: leg I: coxa 2 (0 0/1 0/1 0), trochanter 6 (1 0/1 1/2 1), femur 13 (2 3/1 2/3 2), genu 13 (2 3/2 3/1 2), tibia 13 (2 3/2 3/1 2); leg II: coxa 2 (0 0/1 0/1 0), trochanter 5 (1 0/1 0/2 1), femur 11 (2 3/1 2/2 1), genu 11 (2 3/1 2/1 2), tibia 10 (2 2/1 2/1 2); leg III: coxa 2 (0 0/1 0/1 0), trochanter 5 (1 1/1 0/2 0), femur 6 (1 2/1 1/0 1), genu 9 (2 2/1 2/1 1), tibia 8 (2 1/1 2/1 1); leg IV: coxa 1 (0 0/1 0/0 0), trochanter 5 (1 1/1 0/2 0), femur 6 (1 2/1 1/0 1), genu 9 (2 2/1 3/0 1), tibia 10 (2 1/1 3/1 2). Tarsi II–IV with 18 setae (3 3/2 1/1 3/2 3). Macrosetae present on femur II (<i>pd1</i> 202–294), femur III (<i>ad1</i> 218–302), genu III (<i>ad1</i> 92–176, <i>pd1</i> 105–164), femur IV (<i>ad1</i> 302–416), genu IV (<i>ad1</i> 239–290, <i>ad2</i> 88–122, <i>pd1</i> 139–193), tarsus IV (<i>ad2</i> 172–185, <i>pd2</i> 147–218, <i>pd3</i> 202–244). All setae smooth. Setae <i>av</i> on genu II, <i>av</i>, <i>pv</i> on tibia II, <i>av2</i>, <i>mv</i>, <i>pv2</i> on tarsus II, <i>av</i>, <i>pv</i> on genu III, <i>av</i>, <i>pv</i>, <i>pl</i> on tibia III, <i>av2</i>, <i>mv</i>, <i>pv2</i> on tarsus III, <i>av</i> on genu IV, <i>av</i>, <i>pv</i>, <i>pl1</i> on tibia IV, <i>av1</i>, <i>av2</i>, <i>mv</i>, <i>pv1</i>, <i>pv2</i>, <i>pl1</i>, <i>pl2</i>, <i>pl3</i> on tarsus IV thickened. Setae <i>al1</i> and <i>pl1</i> on tarsus II blunt and thickened. All pre-tarsi with pair of claws and thin membranous ambulacrum. Adult male (n = 2) (figs 10–12). Idiosomal dorsum. As in female. Dorsal shield 725–809 long and 400–419 maximum width at <i>r5</i>. Idiosomal venter (fig. 10). Tritosternum as in female, 151–160 long. Pre-sternal area weakly sclerotised. Sternal shield, genital shield, endopodal and parapodal platelets fused into a single reticulate plate, posterior margin of this shield concave and irregular; 399– 407 long midline; bearing 8–9 pairs of setae (<i>st1–st5</i>, <i>JV1</i>, <i>ZV1</i>, <i>ZV2</i>; seta <i>JV2</i> may be absent or placed off shield) and 4 pairs of distinguishable pores. Anal shield free, rounded triangular; 113–118 long and 80–97 maximum wide; smooth; bearing one pair of para-anal setae, and unpaired post-anal seta; cribrum well developed. Soft cuticle around of anal shield with 2 pairs of elongate metapodal platelets, 6 pairs of setae (<i>JV3–JV5</i>, <i>ZV3</i>, <i>ZV4</i>, <i>UR</i>) and 3 pairs of distinguishable pores. All ventral setae smooth and pointed; setae <i>JV5</i> and <i>ZV5</i> wavy; measurements of ventral setae: <i>st1–st5</i> 34–46, <i>JV1-JV3</i>, <i>ZV1-ZV3</i> 38–71, <i>JV4</i> 118– 151, <i>JV5</i> 244–273, <i>ZV4</i> 172–181, <i>UR</i> 59–71. Peritrematal shields as in female. Gnathosoma. Fixed cheliceral digit with one large median tooth; movable digit with one large preapical tooth, 0–2 small teeth and long slender spermatodactyl; second cheliceral segment length 172–181, movable digit length 63–67 excluding spermatodactyl and 126–134 including spermatodactyl (fig. 11). Other details as in female. Legs. Lengths (from base of coxa to apex of tarsus, excluding ambulacrum): I 651–707, II 549–605, III 623–651, IV 828–902. Legs chaetotaxy and macrosetae as in female. Ventral setae on femur–tarsus II more thickened than in female, especially seta <i>pv1</i> on femur II (fig. 12). Setae <i>av</i>, <i>pv</i> on genu III, <i>av</i>, <i>pv</i>, <i>pl</i> on tibia III, <i>av2</i>, <i>mv</i>, <i>pv2</i>, <i>al1</i> on tarsus III, <i>av</i> on genu IV, <i>av</i>, <i>pv</i>, <i>pl1</i> on tibia IV, <i>av2</i>, <i>mv</i>, <i>pv2</i>, <i>pl2</i>, <i>pl3</i> on tarsus IV thickened. Setae <i>al1</i>, <i>pl1</i> on tarsus II and seta <i>pl1</i> on tarsus III blunt and thickened. Remarks. Females and males <i>Hypoaspis integer</i> display morphological variability (Costa, 1971). Thus, the seta <i>z6</i> is often absent on the dorsal shield. Our data agree with the data of the previous study (table 1). Costa (1971) noted that only one of the 14 studied male specimens had a free anal shield. Both our specimens do not have a free anal shield. From other Ukrainian species of the genus <i>Hypoaspis</i>, <i>H. integer</i> differs by the presence on genu IV three long macrosetae (<i>ad1</i>, <i>ad2</i>, <i>pd1</i>), other species have one relatively short macroseta <i>ad1</i>.
description: Published as part of <i>Trach, V. A. &amp; Joharchi, O., 2018, Mites Of The Family Laelapidae (Acari, Mesostigmata) Associated With Scarab Beetles In Ukraine, pp. 217-228 in Vestnik Zoologii 52 (3)</i> on pages 219-224, DOI: 10.2478/vzoo-2018-0022, http://zenodo.org/record/6454731
description: {"references": ["Berlese, A. 1911. Alcuni Acari entomofili nuovi. Redia, 7, 183 - 186.", "Samsinak, K. 1960. Kurze Bemerkungen uber Mesostigmata (Acari). Casopis Ceskoslovenske Spolecnosti Entomologicke, 57 (3), 275 - 284.", "Karg, W., Rossner, E. 1999. Phoresie von Raubmilben (Arachnida, Acari, Gamasina) mit palaarktischen Blatthornkafern (Col., Scarabaeidae). Entomologische Nachrichten und Berichte, 43 (3 / 4), 224 - 227.", "Haitlinger, R. 2012. Mites associated with insects in Poland. In: Gwiazdowicz D. J., ed. Selected problems of acarological redearch in forests. Wydawnictwo Uniwersytetu Przyrodniczego, Poznan, 113 - 125."]}