Klinckowstroemia cristinae, Villegas-Guzman, Gabriel A., Pérez, Tila M. & Reyes-Castillo, Pedro, 2009

Villegas-Guzman, Gabriel A., Pérez, Tila M. & Reyes-Castillo, Pedro, 2009, New species of the genus Klinckowstroemia Baker & Wharton from Mexico (Acari: Mesostigmata: Trigynaspida: Klinckowstroemiidae), Zootaxa 2248, pp. 1-46 : 40-42

publication ID	https://doi.org/ 10.5281/zenodo.190717
DOI	https://doi.org/10.5281/zenodo.5632817
persistent identifier	https://treatment.plazi.org/id/A1762252-4779-A23C-6C9C-799CFE3FFE58
treatment provided by	Plazi
scientific name	Klinckowstroemia cristinae
status	sp. nov.

Treatment

Klinckowstroemia cristinae sp. nov.

Material examined. Holotype. Ƥ ( CNAC 006649), Hidalgo, Mexico, 2 km Federal highway Crucero- Tianguistengo (20°40.413' N, 98°40.255' W), 2,080 m, 23 September 2006, pine-oak forest, from Odontotaenius zodiacus, O. Francke, A. Valdez and H. Montaño coll. Paratypes. 3 Ƥ ( CNAC 006650- CNAC 006652), 2 33 ( CNAC 006653, CNAC 006654), same data as holotype, from two specimens of Odontotaenius zodiacus ; 1 Ƥ ( CNAC 006655), Hidalgo, Mexico, 2 km Federal highway Crucero- Tianguistengo (20°40.413' N, 98°40.255' W), 2,080 m, 23 September 2006, pine-oak forest, from Oileus rimator, O. Francke, A. Valdez and H. Montaño coll. Holotype, three paratype females and two paratype males deposited in the CNAC, one female paratype deposited in NMNH.

Female (n = 5). Body oval. Idiosoma, L = 928 (928–1005), W = 672 (672–710) ( Fig. 21 View FIGURE 21 A).

Ve n tr al idiosoma. Hyaline hood extending to level of coxa I, seta a 1 long and slightly serrated ( Fig. 23 View FIGURE 23 A), L = 34 (32–38). Tritosternum base wider than long. Tetartosternum shield ( Fig. 22 View FIGURE 22 D), L = 43 (40–43), anterior W = 115 (115–124); shagreened, anterior margin slightly concave, medial notch small, triangular. Sternal seta st 1 moderately long, slightly serrated ( Fig. 22 View FIGURE 22 E), L = 20 (20–25), near centre of shield; lyriform sternal pore stp 1 close to posterior margin of shield. Sternal shield, L = 81 (81–93) shagreened. Pore stp 2 near anterior margin of shield, behind and below it is sternal seta st 2, medium length and simple, L = 19 (12–19). Setae st 3 long, slightly serrated, L = 28 (25–37), st 4 is medium length, slightly serrated, L = 16 (16–25). Setae st 3 and st 4 towards sides of shield, close to posterior margin ( Fig. 22 View FIGURE 22 C). Sternogynial shield, L = 62, W = 171 (164– 186) triangular, posterior margin pointed at apex, surface shagreened, stp 3 near anterior margin ( Fig. 21 View FIGURE 21 A). Sternogynial apodeme long and thin, extending to posterior level of latigynial and mesogynial condyles. Latigynial shields ( Fig. 22 View FIGURE 22 C), L = 124 (124–140), W= 78 (74–78) each with an oval pore and three or four simple setae, usually four; medial margins of shields straight and short, shield are shagreened; latigynial apodeme long and thin. Mesogynial shield, L = 74 (71–78), W = 99 (93–102), triangular, wider posteriorly and anteriorly ( Fig. 22 View FIGURE 22 C), rounded at apex, surface shagreened, mesogynial condyles below level of shield apex. Ventral shield, L = 245 (245–264), posterior W = 531 (512–557), triangular, truncated posteriorly ( Fig. 22 View FIGURE 22 F), surface shagreened, reticulated like a honey-comb ( Fig. 22 View FIGURE 22 G), with 12–14 pairs of small setae, usually 14. One pore underneath posterior margin of coxa IV. Metapodal-peritremal-exopodal shield reticulated, with a pore, with two setae. Anal shield, L = 161 (155–177), anterior W = 448 (435–480), with six pairs of simple setae plus longer antero anal seta, L = 29 (29–33), shield shagreened, with two pairs of pores, one near anterior margin and the other below the anus.

Gnathosoma . Capitular setae (sc) medium and simple, L = 16 (12–17). Hypostomal setae hyp 1 longest and simple, L = 66 (65–71). Seta hyp 2 long and barbed, 40 (40–45), hyp 3 moderately long and simple, L = 19 (16–19). Chelicera with barbed seta, movable digit with four teeth, two large and two small, fixed digit with five teeth, all similar in size, movable finger divided at the tip. Palpal setae are generally simple, but al 1 (av 1) and al 2 (av 2) on trochanter are branched and serrate respectively. Femur setae pv 1 serrated, al 2, ad 1 and ad 2 barbed. Genu setae al 1 and al 2 are barbed, pl 1 and ad 1 are serrated. Anterior margin of palp trochanter with a blunt process (b) and process (s) ( Fig. 22 View FIGURE 22 H).

Legs. Most leg setae simple, except: Leg I: trochanter ad 1, al 1 and pv 1 serrated; femur pv 1, pv 2 and pv 3 serrated; genu al 1, av 1 and pv 1 serrated; tibia ad 1, ad 2, ad 3, pd 1 and pd 3 serrated. LegII: femur av 1 and pv 1 serrated; genu av 1 and pv 1 serrated. Leg III: trochanter pv 1 slightly serrated; femur av 1 serrated; genu av 1 and pv 1 serrated; tibia ad 3 serrated. Leg IV: trochanter pl 1 slightly serrated; femur av 1 serrated; genu av 1 and pv 1 serrated; tibia ad 3 barbed. Seta pv 1 is serrated and long, 26 (26–30).

Male (n = 3) Body oval, similar to female. Idiosoma, L = 966–1011, W = 698–717 ( Fig. 21 View FIGURE 21 B).

Ve n tr al idiosoma. Tetartosternum (Tst), L = 47–53, anterior W = 124–127, shagreened ( Fig. 23 View FIGURE 23 D), anterior margin concave as in female. Tetartosternal notch small, V-shaped and divides anterior margin in two parts, shield with a pore near posterior margin. Sternal seta st 1, L = 22–25, slightly serrated. Sternal shield shagreened ( Fig. 23 View FIGURE 23 B), L = 143–149. Setae st 2, st 3 and st 4, microseta simple; shield with two pores, one near anterior margin of the shield, one below coxa IV. Genital opening oval, L = 62, W= 87–90. Ventral shield, L = 372, posterior W= 544–557; shagreened and reticulated as in female, 34 setae ( Fig. 21 View FIGURE 21 B); with two pores, one near anterior margin of coxa IV and one below of coxa IV. Anal shield shagreened, L = 171–177, anterior W = 454; with six pairs of simple setae plus longer antero anal aa seta, L = 31–34, with two pores, one near anterior margin and one below anus. Metapodal-peritremal-exapodal shield reticulated, with a pore, without setae.

Gnathosoma . Hypostomal setae ( Fig. 23 View FIGURE 23 C), hyp 1 long and simple, L = 65–71, hyp 2 serrated and long, L = 43–47, hyp 3 simple and medium length, L = 19.

Etymology. This specific name cristinae is named in honour of Mrs. Cristina Olvera for her hospitality and kindness in hosting the senior author during this research.

Remarks. This species can be distinguished from all others because the anterior margin of the tetartosternum shield is concave in both sexes, and sternal seta st 3 is the longest and is slightly serrated. The mesogynial shield is long and wider posteriorly; the latigynial shield is long with the medial margins reduced, all the shields are shagreened, except the ventral shield, which is reticulated. The male has st2, st 3 and st 4 microsetae and simple; the ventral shield is reticulated and shagreened, and the other shields are only shagreened. The tetartosternal notch is small and V-shaped, and the ventral shield has 34 pairs of simple setae. Klinckowstoemia cristinae is similar to K. schusteri because they have three to four simple setae on the latigynial shield, hyp 2 and hyp 3 are serrated and long and moderatly long respectively, in both species. However, the new species is smaller (idiosoma 953.6 versus 1374), has sternal seta st 3 (29.2) long and slightly serrated, and has shagreened sternogenital shields. In comparison, K. schusteri has several shields reticulated (sternal, sternogynial, mesogynial and latigynial) and st 3 (8) small and simple. Both species have large latigynial shields but that of K. cristinae has reduced medial margins (19.5) compared with K. schusteri .

The passalids carrying this species were found in decaying trunks in the same locality at Hidalgo, Mexico, on two hosts, Odontotaenius zodiacus and Oileus rimator . Mites were found in the alcohol, but on O. zodiacus we found a male of K. cristinae on coxa I. On O. rimator we found two other species of klinckowstroemiids, K. scotti and K. cristinae .