Chanteius contiguus (Chant)

Kreiter, Serge, Payet, Rose-My, Mouigni, Hadji, Douin, Martial, Tixier, Marie-Stéphane & Azali, Hamza Abdou, 2021, New records of phytoseiid mites (Acari: Mesostigmata) of Grande Comore Island (Comoros Archipelago), Acarologia 61 (2), pp. 241-273 : 260-262

Chanteius contiguus (Chant)

Typhlodromus (Typhlodromus) contiguus Chant 1959: 29 .

Typhlodromus (Diadromus) contiguus, Athias­Henriot 1960: 62 .

Typhloseiopsis contiguus, Muma 1961: 294 .

Chanteius (Chanteius) contiguus, Wainstein 1962: 9 .

Typhlodromus contiguus, Hirshmann 1962: 2 .

Typhlodromus (Typhloseiopsis) contiguus, Pritchard & Baker 1962: 222 .

Diadromus contiguus, Chant & Yoshida­Shaul 1986: 2030 , Moraes et al. 1986: 184.

Chanteius contiguus, Moraes et al. 2004b: 261 , Chant & McMurtry 1994: 239.

Chanteius lieni ( Tseng 1976) : 97 (synonymy according to Chant & Yoshida­Shaul 1986).

This species belongs to the contiguus species group ( Chant and McMurtry 1994) and its biology remains totally unknown.

World distribution: Anjouan Island, China, Hong­Kong, Japan, Madagascar Island, Mayotte Island, Mohéli Island, Philippines, Singapore.

Specimens examined: 37 specimens (27 ♀♀, 7 ♂♂ and 3 imm.) collected during this study. Mdé, INRAPE (51 m aasl, lat. 11°44 ′ 12 ″ S, long. 43°14 ′ 59 ″ E), 1 ♀ on Acacia mangium Willdenow (Mimosaceae) , 1 ♀ on an unknown host plant, 1 ♂, 3 ♀♀ and 1 imm. on Acalypha wilkesiana Müller Argoviensis (Euphorbiaceae) , 1 ♂ on Artocarpus heterophyllus Lamarck (Moraceae) , 1 ♀ on Clerodendrum speciosissimum Van Geert ex. Morren ( Verbenaceae ), 2

♀♀ on Theobroma cacao L. ( Malvaceae ) and 4 ♀♀ and 1 imm. on Mangifera indica L. ( Anacardiaceae ), 6/XII/2018 ; Mvouni, University of Comoros (434 m aasl, lat. 11°43 ′ 11 ″

S, long. 43°16 ′ 31 ″ E) and 1 ♀ on Myristica fragans Houttuyn (Myristicaceae) , 1 ♀ on Litchi sinensis Sonnerat (Sapindaceae) , 6/XII/2018 ; Ivembeni, Banda Samlini (791 m aasl,

lat. 11°29 ′ 22 ″ S, long. 43°19 ′ 36 ″ E), 2 ♀♀ on M. indica , 7/XII/2018 ; Moroni, Le Kalyptus Hotel (24 m aasl, lat. 11°40 ′ 58 ″ S, long. 43°15 ′ 45 ″ E), 1 ♂ on Citrus sp. (Rutaceae) , 7/XII/2018 ; Moroni (171 m aasl, lat. 11°40 ′ 47 ″ S, long. 43°16 ′ 27 ″ E), 1 ♀ and 1 imm.

on Carica papaya L. ( Caricaceae ) and 1 ♂ on Clidemia hirta (L.) Don ( Melastomataceae ), 9/XII/2018 ; Djoumoichongo (230 m aasl, lat. 11°48 ′ 34 ″ S, long. 43°17 ′ 37 ″ E), 1 ♀ on Syzygium aromaticum (L.) Merrill and Perry ( Myrtaceae ), 10/XII/2018 ; Mdjoiyezi (230 m aasl, lat. 11°50 ′ 19 ″ S, long. 43°18 ′ 29 ″ E), 1 ♂ on Vitex doniana Sweet (Lamiaceae) and 4 ♀♀ on M. indica , 10/XII/2018 ; Mdé, INRAPE (51 m aasl, lat. 11°44 ′ 12 ″ S, long. 43°14 ′ 59 ″ E), 1

♀ on an unknown host plant and 2 ♂♂ and 4 ♀♀ on Senna occidentalis (L.) Link ( Fabaceae ), 11/XII/2018.

Remarks: morphological and morphometric characters and all measurements of our specimens fit well with measurements in the many descriptions and redescriptions available in the literature, especially those of Blommers (1976) for specimens from Madagascar. Mentioned only from South­East Asia and Madagascar, this species seems quite common in Comoros

Characters Grande Comore (2) Mauritius (4) South Africa Characters Grande Comore (2) Mauritius (4) South Africa

(this study) (2) (this study) (2)

Dsl 285 – 293 288 (280 – 290) 280 – 315 st1-st1 48 47 (45 – 48) –

Dsw 125 136 (125 – 142) – st2-st2 60 56 (55 – 60) 69 – 76

j1 25 – 26 25 (23 – 25) 22 – 25 st3-st3 71 – 75 71 (60 – 75) –

j3 23 – 25 18 (15 – 20) 22 – 25 st1-st3 55 50 60 – 63

j4 6 – 7 5 (4 – 5) 9 st4-st4 77 – 80 77 (58 – 88) –

j5 6 – 7 5 (4 – 5) 9 gensl 100 – 103 102 (100 – 108) –

j6 6 – 7 5 (5 – 6) 9 gensw st5 66 – 68 – –

J5 6 – 7 5 9 gensw post. cor. 78 – 83 79 (73 – 85) –

r3 37 39 (38 – 40) 35 – 41 st5-st5 63 – 65 66 (63 – 68) 76 – 82

s4 58 – 63 63 (60 – 65) 61 – 69 Lisl Not visible 18 (15 – 20) –

s6 78 – 85 77 (75 – 83) 76 – 88 Lisw Not visible 8 –

z2 21 – 23 21 (20 – 25) 22 – 25 Vsl 90 – 93 84 (80 – 90) 85 – 88

z3 35 32 (30 – 33) 28 – 38 Vsw ZV2 35 – 37 33 (30 – 35) 44 – 57

z4 19 15 (13 – 15) 16 – 22 Vsw anus 48 – 50 51 (40 – 55) –

z5 8 6 9 JV5 30 – 37 34 (33 – 35) 32 – 38

Z4 78 – 83 77 (75 – 83) 79 – 91 Scl 12 – 13 11 (8 – 15) –

Z5 65 – 70 67 (63 – 70) 63 Scw 8 – 10 10 (8 – 13) –

SttIV 18 – 20 19 (18 – 20 19 – 22

Fdl 16 – 18 17 (15 – 18) –

No teeth Fd 2 2 –

Mdl 18 17 (15 – 18) –

No teeth Md 1 1 – Sources of measurements – Mauritius: Kreiter & Abo-Shnaf (2020b); South Africa: Ueckermann & Loots (1985); –: not provided.

Archipelago (Kreiter et al. 2020a, Kreiter et al. 2021a, b). This is the second most abundant species collected during this study.