Lorryia fortistriata , Mondin, Alexandre De Souza, Nuvoloni, Felipe Micali & Feres, Reinaldo José Fazzio, 2016

Mondin, Alexandre De Souza, Nuvoloni, Felipe Micali & Feres, Reinaldo José Fazzio, 2016, Four new species of Lorryia (Acari: Tydeidae) associated with Hevea brasiliensis Muell. Arg. (Euphorbiaceae) in Brazil, Zootaxa 4158 (4), pp. 473-490: 479-484

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Lorryia fortistriata

sp. nov.

Lorryia fortistriata  sp. nov.

( Figs. 6View FIGURE 6; 7; 11A; 11B)

Diagnosis. Lorryia fortistriata  sp. nov. has acute and smooth dorsal setae. The dorsal ornamentation is characterized by the absence of reticulation, with dense striated pattern. Palptarsus eupathidium (pζ) straight and rounded distally.

Dorsum ( Figs. 6View FIGURE 6 A; 11A): Prodorsum recurved. Twelve pairs of smooth and slightly curved setae, of medium length ( Fig. 6View FIGURE 6 D; Fig. 11View FIGURE 11 B), and filiform, smooth trichobothria (bo) ( Fig. 6View FIGURE 6 E). Dense dorsal striation, which contains reduced space between its bands ( Fig. 6View FIGURE 6 F). Ornamentation type “ Tydeus  ” ( Kaźmierski 1998), without reticulated areas. Lyrifissure ia ( Fig. 6View FIGURE 6 B) lies posteriorly to c2, at the distance as long as distance between c1 and c2. Lyrifissure im ( Fig. 6View FIGURE 6 C) lies in same longitudinal row as ia, anteriorly and close to e. Dimensions: length of idiosoma 200 (185–257) and width 138 (135–195). Dorsal setae: ro 15 (10–15), la 12 (10–13), bo 34 (26–42), ex 13 (10–14), c1 13 (10–13), c2 13 (9–13), d 14 (11–14), e 13 (11–13), f1 13 (11–15), f2 15 (12–15), h1 15 (11–15), h2 15 (10–15), ps1 9 (5–11).

Venter ( Fig. 7View FIGURE 7 A): Ornamentation on metasternal region with “V” like striation, anogenital region with six pairs of genital, four pairs of aggenital and one pseudanal setae.

Gnathosoma ( Fig. 1View FIGURE 1 A, 1B): Gnathosoma visible from above. Palp setal count 6+1ω –2–2. Tarsal eupathidium straight and distally rounded, without terminal dilation. Palp length 43 (38-52), tarsus ( Fig 7View FIGURE 7 B) elongate, length 20 (19-20), width 4 (4-5).

Legs: Nude leg setae. All tarsi with terminal claws and hairy empodium, empodial hook present ( Fig. 7View FIGURE 7 D). Solenidion ω I thin and of medium length, as long as two thirds of tarsal width. Solenidion ω II very short. Oval coxal organ ( Fig. 7View FIGURE 7 C). Small seta k on tibia I spatulated ( Fig. 7View FIGURE 7 D). Measures of each leg: leg I 129 (92-136), leg II 112 (75-115), leg III 118 (83-122), leg IV 129 (85-142).

Etymology. The new species name derives from Latin words forti (strong) and striatum (striation), for remarkably dense dorsal striation, which contains reduced space between its bands.

Specimens examined. Holotype female from H. brasiliensis  , clone FDR 5788 from Igrapiúna , Bahia State (13° 48' S, 39° 10' W), 19 November 2008, E. B. Castro coll.GoogleMaps  ; 6 paratypes females from H. brasiliensis  , clone FDR 5788, from Igrapiúna , Bahia State, collected on October and November 2008, E. B. Castro coll. Specimens deposited at Acari collection DZSJRP. Male not found. 

Remarks. The new species resembles Lorryia devexa ( Kuznetzov, 1973)  due to the pattern of striation type “ Tydeus  ”, similar body dimensions (about 200 µm of length and 135 µm of width), palpal tarsi longer than stylet, acute and smooth dorsal setae, short f1 setae (shorter than f1–h1 distance), lyrifissure ia at the distance as long as c1-c2 sector to c2. The species are distinguished by the following characters: dorsal setae of the same length (ro, la and ex 2-4 µm shorter than the other dorsal setae in L. devexa  ); “V-like” striation between metasternal setae (longitudinal striation between metasternal setae in L. devexa  ); small and delicate empodial hook (large and strong empodial hook in L. devexa  ); solenidion ω I as long as 2/3 of tarsus I width (shorter solenidion I in L. devexa  , as long as 1/3 of tarsus width).