New species of the genus Klinckowstroemia Baker & Wharton from Mexico (Acari: Mesostigmata: Trigynaspida: Klinckowstroemiidae) Author Villegas-Guzman, Gabriel A. Author Pérez, Tila M. Author Reyes-Castillo, Pedro text Zootaxa 2009 2248 1 46 journal article 10.5281/zenodo.190717 3311a465-7175-4dc6-a881-0ba131f1d1da 1175-5326 190717 Klinckowstroemia santibanezi sp. nov. Material examined. Holotype . Ƥ ( CNAC 006620), Oaxaca, Mexico , Municipality of Ixtlán de Juárez ( 17°31.722' N , 96°30.678' W ), 2,742 m , 13 November 2005 , pine forest, from Proculejus sartorii , O. Francke, M. Cordova, A. Jaimes and G. Montiel coll. Paratypes . 1 Ƥ ( CNAC 006621), 1 3 ( CNAC 006622), same data as holotype , from one specimen of Proculejus sartorii ; 7 Ƥ ( CNAC 006623- CNAC 006629), 4 33 ( CNAC 006630- CNAC 006633), Oaxaca, Mexico , Cerro Pelón, highway Tuxtepec-Oaxaca ( 17°35.75' N , 96°28.41' W ), 2,240 m , 22 November 1996 , evergreen cloud forest, from one specimen of Proculejus brevis , inside log of Persea americana , F. Lorea. coll.; 2 Ƥ ( CNAC 006634- CNAC 006635), Oaxaca, Mexico , Municipality of Ixtlán de Juárez ( 17°31.722' N , 96°30.678' W ), 2,742 m , 13 November 2005 , pine forest, from one specimen of Vindex sp. nov. , O. Francke, M. Cordova, A. Jaimes and G. Montiel coll.; 3 Ƥ ( CNAC 006636- CNAC 006638), 1 3 ( CNAC 006639), Oaxaca, Mexico , 8 km SE San Miguel Talea de Castro, Municipality San Miguel Talea de Castro, ( 17°19.620' N , 96°17.403' W ), 2,082 m , 22 July 2007 , evergreen cloud forest, from three specimens of Proculejus brevis , O. Francke, A. Valdez, C. Santibañez, A. Ballesteros and H. Montaño coll. Holotype , ten paratype females and three paratype males deposited in the CNAC , one female and male paratype each deposited in NMNH , UGA and UMMZ . Female (n = 14). Body oval. Idiosoma, L = 1229 ( 1165–1517 ); W = 909 (832–1107) ( Fig. 16 A). Ve n tr al idiosoma . Hyaline hood extending beyond to level of coxa IV, seta a 1 long and barbed ( Fig. 18 C), L = 93 (56–96). Tritosternum base wider than long. Tetartosternum shield, L = 47 (40–53), anterior W = 155 (133–155), shagreened ( Fig. 17 F), anterior margin slightly rounded, corners of shield concave, medial notch small, square. Sternal seta st 1 long and barbed ( Fig. 17 E), L = 47 (40–61), near centre of shield; lyriform sternal pore stp 1 close to posterior margin of shield. Sternal shield L = 109 (93–115), shagreened. Pore stp 2 near centre of shield, behind and below it st 2, moderately long and serrated, L = 26 (12–26). Setae st 3 moderately long, serrated, L = 19 (19–25), st 4 is serrated and short, L = 9 (9–16) ( Fig. 18 B). Setae st 3 and st 4 on sides of shield, close to posterior margin. Sternogynial shield, L = 90 (87–102), W = 233 (217–236) triangular, posterior margin pointed at apex ( Fig. 17 G), surface shagreened, stp 3 near anterior margin. Sternogynial apodeme short and thick, extending posteriorly to level of latigynial and mesogynial condyles. Latigynial shields, L = 186 (174–186), W= 93 (87–93) each with an oval pore and six to ten serrated setae, usually eight; medial margins of shields straight, surface shagreened, latigynial apodeme long and thin. Mesogynial shield, L = 74 (71–90), W = 121 (112–140), triangular, wider posteriorly and anteriorly ( Fig. 17 G), slightly pointed at apex, surface shagreened, mesogynial condyles at level of shield apex. Ventral shield, L = 285 (264–304), posterior W = 627 (595–678), triangular, truncated posteriorly, surface shagreened and reticulated like a honey-comb, with 11–14 pairs of small setae ( Fig. 16 A). One pore underneath posterior margin of coxa IV. Metapodal-peritremal-exopodal shield reticulated, with a pair of pores and three setae. Anal shield, L = 192 (192–242), anterior W = 576 (531–608) ( Fig. 18 D), with five to seven pairs of simple setae plus longer antero anal seta, L = 27 (27–45), two pairs of pores, one near anterior margin and the other below the anus. Shield reticulated like ventral shield ( Fig. 18 D). Gnathosoma . Capitular setae ( sc ) medium and barbed, L = 19 (19–25). Hypostomal setae ( Fig. 18 A) hyp 1 long and simple, L = 71 (71–87), longest; hyp 2 long and barbed, 59 (57–62); hyp 3 moderately long and barbed, L = 20 (16–20). Chelicera with barbed seta, movable digit with four teeth, fixed digit with six teeth, movable finger divided at tip. Palp setae are simple, except al 1 and al 2 on trochanter are branched and serrate respectively. Femur setae pl 1 barbed, pl 2 and pd 1 serrated; genu seta al 1 barbed. Anterior margin of palp trochanter with a small blunt process ( b ) and denticulated process ( s ) ( Fig. 18 E). Legs . Most leg setae simple, except: Leg I: trochanter ad 1, av 1, al 1 and pv 1 pilose; genu ad 1, av 1, pl 2 and pv 1 pilose; tibia ad 1, ad 2, ad 3, av 1, av 2, pd 1, pv 2 and pd 3 pilose. Leg II: trochanter ad 1, ad 2, pd 1 and pd 2 serrated; femur av 1, pv 1, pd 1, pd 2 and pd 3 serrated; genu av 1 and pv 1 serrated; tibia ad 3, al 3, pd 3 and pl 3 serrated; tarsus ad 1, ad 2, ad 3, pd 2, pd 3 and pl 2 serrated, av 2 and av 3 slightly serrated. Leg III: trochanter ad 1, ad 2, pd 1, pd 2 and pv 1 serrated; femur ad 1, ad 2, av 1, pd 1 and pl 1 serrated; genu av 1, pl 1 and pd 2 serrated; tibia pd 3 serrated; tarsus av 3 serrated. Leg IV: trochanter pv 1 and pl 1 serrated; femur av 1 serrated; genu av 1, pl 1 and pv 1 serrated; tibia pd 3 and pl 3 barbed. Seta pv 1 is serrated and long, 36 (31–47) ( Fig. 17 H). Male (n = 6) Body oval, similar to female. Idiosoma, L = 1242–1448 , W = 954–1037 ( Fig. 16 B). Ve n tr al idiosoma . Tetartosternum, L = 59–62, anterior W = 149–161, shagreened and reticulated, anterior margin round and middle of shield is compressed ( Fig. 18 F) Tetartosternal notch is small and divides anterior margin in two parts, with a pore near posterior margin. Sternal seta st 1, L = 17–25, simple ( Fig. 18 F). Sternal shield ( Fig. 18 G) shagreened and reticulated, L = 180–195. Sternal setae, st 2 simple, L = 14, st 3 simple, L= 9– 12), st 4 is short and simple, L = 6, (these setae were found in only two specimens); with two pores, one close to anterior margin of shield and one close to genital opening. Genital opening oval, L = 81–87, W= 121–133 ( Fig. 18 G). Ventral shield, L = 422–481, posterior W = 608–672, shagreened and reticulated like a honeycomb, with 34–36 setae; with two pores, one at level of anterior margin of coxa IV and other below level of coxa IV. Anal shield shagreened and reticulated, L = 205–264, anterior W = 544–589; with six pairs of simple setae plus longer antero anal seta, L = 42–48, with two pores, one near anterior margin and the other below anus. Metapodal-peritremal-exopodal shield reticulated with a pair of pores, without seta ( Fig. 16 B). Gnathosoma . Hypostomal seta hyp 1 long and simple, L = 80–87; hyp 2 barbed and long, L = 50–68, hyp 3 barbed and medium length, L = 17–25. Etymology. This species is named in honour of Carlos Santibañez, who helped to collect almost all the passalid beetles used in this research. Remarks. This species can be distinguished from all others because the body is very large and setae st 1 is long and barbed, the longest of the sternal setae. In females the tetartosternal, sternal, mesogynial and latigynial shields are shagreened, and only the ventral and anal shield are reticulated. The latigynial shield has six to ten serrated setae. The mesogynial shield has broad posterior and anterior margins. The male has st 1 medium length and simple, and the tetartosternal, sternal, ventral and anal shields are reticulated and shagreened. The tetartosternal notch is small and divides the anterior margin into two parts. The ventral shield has 34–36 setae. Klinckowsroemia santibanezi is very similar is similar to K . candidoi , because they both have the hyaline hood beyond coxa IV, st 1 long and barbed, and the ventral and anal shields reticulated like honey-comb. But new the species has all the sternal setae barbed, with six to ten serrated setae on the latigynial shield, and st 3 and st 4 are serrated. In contrast, K . candidoi has three to four simple setae on the latigynial shield and sternal setae st 3 and st 4 are simple. The beetles carrying this species were found in decaying trunks in three different localities and hosts from Oaxaca. Two mites were found on the humerus and metasternum of the hosts, but almost all specimens were found in the alcohol. One passalid beetle had two species of mites, K . santibanezi and K . victoriae .