Transeius audeae Kreiter, Allam & Tixier

Tixier, Marie-Stephane, Allam, Latifa, Douin, Martial & Kreiter, Serge, 2016, Phytoseiidae (Acari: Mesostigmata) of Morocco: new records, descriptions of five new species, re-descriptions of two species, and key for identification, Zootaxa 4067 (5), pp. 501-551: 532-533

publication ID

http://doi.org/10.11646/zootaxa.4067.5.1

publication LSID

lsid:zoobank.org:pub:902CB084-17BB-4952-B738-E6E4E989771B

persistent identifier

http://treatment.plazi.org/id/0F5E879D-2621-4412-9582-A184FB14FBAB

treatment provided by

Plazi

scientific name

Transeius audeae Kreiter, Allam & Tixier
status

new species

Transeius audeae Kreiter, Allam & Tixier   , new species

Specimens examined: Holotype: female, at Meknès on Vitis vinifera   . June, 16, 2001. Deposited in the Montpellier SupAgro—INRA Acarology collection.

Description of the adult female (n = 1) ( Figs 17–21 View FIGURES 17 – 21 )

Diagnosis. Dorsal shield smooth with anterolateral striae. All setae smooth. Measurements of the following setae different from other species of the genus Transeius   : s 4 = 55, S 2 = 50 and Z 5 = 78. Peritremes extend to j 1. Sternal shield with three pairs of setae, posterior margin slightly concave. Ventri-anal shield striated and squareshaped. Three pairs of pre-anal setae and a pair of round pores. Calyx of spermatheca pocular tubular. Fixed digit of chelicera with two teeth; movable unidentate. Genu II with eight setae. Three macrosetae on leg IV (Ge IV 47, tibia, STI IV 35 and basitarsus, ST IV 70).

Dorsum ( Fig. 17 View FIGURES 17 – 21 ). Dorsal shield mostly smooth with anterolateral striae, with six solenostomes (gd 1, gd 2, gd 4, gd 6, gd 8 and gd 9) and eight poroids, 385 long and 200 wide, 17 pairs of dorsal setae and two pairs of sub-lateral setae: j 1 25, j 3 43, j 4 10, j 5 10, j 6 10, J 2 10, J 5 10, z 2 30, z 4 40, z 5 5, Z 1 13, Z 4 63, Z 5 78, s 4 55, S 2 50, S 4 12, S 5 12, r 3 34, R 1 22. All setae smooth. Peritreme extending to j 1 ( Fig. 17 View FIGURES 17 – 21 ).

Venter ( Fig. 18 View FIGURES 17 – 21 ). Sternal and genital shields smooth, ventri-anal shield reticulated. Sternal shield with three pairs of setae and two pairs of lyrifissures; one pair of sternal setae on small metasternal plate and with a pair of lyrifissures; posterior margin slightly concave. Distances between ST 1 – ST 3 63, ST 2 – ST 2 72, ST 5 –ST 5 72. Two pairs of metapodal plates 25 long, 6 wide for the largest and 18 long and 2 wide for the smallest. Ventri-anal shield with three pairs of pre-anal setae, JV 1, JV 2, and ZV 2, and one pair pre-anal pores present. Membrane surrounding ventri-anal shield with four pairs of setae ZV 1, ZV 3, JV 4 and JV 5; square ventri-anal shield 118 long, 100 wide at anterior corners, and 100 wide at level of anus. JV 5 67. A pair of lyrifissures near JV 5.

Legs ( Fig. 19 View FIGURES 17 – 21 ). Leg IV with three macrosetae on genu, Ge IV 47, tibia, STI IV 35 and basitarsus, ST IV 70. Length of leg I: 340, II: 250, III: 250, IV: 355. Chaetotactic formula of Ge II: eight setae; 1 2 / 1, 2 / 1 1 and Ge III: seven setae, 1 2 / 2, 2 /0 1.

Chelicera ( Fig. 20 View FIGURES 17 – 21 ). Fixed digit 37 long with two teeth; and movable digit 34 long with one tooth. Pilus dentilis visible.

Spermatheca ( Fig. 21 View FIGURES 17 – 21 ). Pocular tubular ( Denmark et al., 1999), with a cervix elongate 20 long and 6 wide, with a neck at the basis of the cervix and visible minor and major   ducts.

Remarks. Transeius audeae   ressemble to T. fragilis (Kolodochka & Bodarenko)   but S 2 length is 36 µm for this latter species and 50 µm in T. audeae   . The shapes of the spermatheca and of the ventri-anal shield are also totally different. It also resembles T. soniae Zannou, Moraes & Oliveira   but differs largely in the length of s 4, S 2, Z 5 ( T. soniae   : s 4 = 90, S 2 = 63, Z 5 = 99; T. audeae   : s 4 = 55, S 2 = 50 and Z 5 = 78) and in the shape of the spermatheca and ventri-anal shield. It also looks like T. sosninae (Wainstein)   but differs in the length of S 2 (32 in T. sosninae   and 50 in T. audeae   ), and the shapes of spermatheca and ventri-anal shields are totally different. It finally resembles to T. avetianae (Arutunjan & Ohandjanian)   which is the closest species but again measurements of s 4, S 2 and Z 5 are very different (T. avetianae   : s 4 = 63, S 2 = 60, Z 5 = 85; T. audeae   : s 4 = 55, S 2 = 50 and Z 5 = 78). Furthermore, shapes of spermatheca and ventri-anal shield are very different and pores are more close to JV 2 (so more central than lateral) in T. avetianae   than in the new species. This species was so different and was found in a so specific location and on a specific plant without any other Transeius   species that it was decided to describe it, despite the fact that we have only one female. It cannot constitute a variant of an already known and described species.

Etymology. The name “ audeae   ” refers to the daughter of Serge Kreiter, Aude Kreiter.