First record of the genus Rhinothrombium (Trombidiformes: Tanaupodidae) from Türkiye: Rhinothrombium nemoricola (Berlese) Author Torunlar, Alper DepartMent of Biology, Graduate School of Natural and Applied Sciences, Erzincan Binali YIldIrIM University, Türkiye Author Buğa, Evren Medical Laboratory Techniques PrograM, İliÇ Dursun YIldIrIM Vocational School, Erzincan Binali YIldIrIM University, Türkiye Author Sevsay, Sevgi Department of Biology, Faculty of Sciences and Arts, Erzincan Binali YIldIrIM University, Türkiye ssevsay@erzincan.edu.tr text Acarological Studies 2023 2023-07-31 5 2 94 98 http://dx.doi.org/10.47121/acarolstud.1320368 journal article 10.47121/acarolstud.1320368 2667-5684 10831855 A3C86D4A-DF8D-4ABA-AB8C-22FE5FE20696 Rhinothrombium nemoricola (Berlese, 1886) Larva. Unknown. Adult (n=2): Colouration reddish to brown. Idiosoma slightly elongate, length 1553-1650 and width 989-1075. Figure 1. Rhinothrombium nemoricola (adult). Ventral view of gnathosoma. One pair of nude galealae ( cs , 47-49), two pairs of nude anterior hypostomalae ( as 1 , 10-12 and as 2 , 30-34), one pair of nude subcapitular setae ( bs , 58-72), bs longer than cs ( Fig. 1 ). Cheliceral blade serrated along the inner edge. Palp tarsus slightly narrowing towards the end, rounded distally and extending behind the termination of palp tibial claw, covered with numerous solenidia at the top ( Fig. 2A ). Figure 2. Rhinothrombium nemoricola (adult). A) Palp tarsus, B) Posterior dorsal idiosomal setae, C) Crista metopica, D) An unpaired sclerite in front of the genital opening. Figure 3. Rhinothrombium nemoricola (deutonymph). A) Crista metopica, B) The genital opening. Table 1. Leg measurements.

Adult-1	Adult-2	Deutonymph
Leg I
Ta_I (L/W)	310/150	284/147	147/72
Ti_I	225	214	102
Ge_I	183	163	86
Tf_I	156	145	72
Bf_I	164	157	47
Tr_I	96	68	35
Cx_I	179	175	100
Leg II
Ta_II	215	192	92
Ti_II	134	127	58
Ge_II	115	98	47
Tf_II	95	88	45
Bf_II	96	94	48
Tr_II	71	63	35
Cx_II	198	181	87
Leg III
Ta_III	208	198	90
Ti_III	163	133	59
Ge_III	124	100	43
Tf_III	103	88	37
Bf_III	99	86	40
Tr_III	102	89	47
Cx_III	172	164	89
Leg IV
Ta_IV	272	247	119
Ti_ IV	250	236	100
Ge_ IV	173	181	68
Tf_ IV	139	153	44
Bf_ IV	113	110	48
Tr_ IV	154	136	49
Cx_ IV	217	229	98
IP	4424	4199	1935

Dorsal opistosomal setae simple (49-66), uniform, slightly thickened stem, narrowing towards tip, spine-like, without setulose, inserted on prominent sclerites ( Fig. 2B ). Crista metopica strongly sclerotized. The border of the anterior region of the crista metopica not clear. Scutum with projecting naso (45-52) with two setae. Posterior region prominent (113-117) shorter than anterior region (132- 135). Two pairs of sessile eyes laterally to crista metopica on ocular sclerites. Anterior lenses (20-26) shorter than posterior lenses (30-35). Middle part of crista widened at the level of sensillary area. Sensillae smooth (125-137) ( Fig. 2C ). Genital opening at level of coxae IV with three pairs of acetabulae, surrounded by paired sclerites of similar shape. Anterior to genital opening an unpaired round sclerite ( Fig. 2D ). Legs stout, shorter than idiosoma. Tarsus I oval in shape. All tarsi terminated with double claws. The length of the leg segments are given in Table 1 . Deutonymph (n=1): Body smaller than adult. Idiosoma length 902 and width 595. Other characters as in adults. Gnathosoma. One pair of nude galealae ( cs , 23), two pairs of nude anterior hypostomalae ( as 1 , 8 and as 2 , 23), one pair of nude subcapitular setae ( bs , 38). Palps not as robust as in adults. Dorsal opisthosomal setae similar to those in adults but shorter (35-42) ( Fig. 3A ). Two pairs of genital acetabula present ( Fig. 3 B ). Specimens examined Esenyurt Village , Üzümlü district , Erzincan , Türkiye 39°38′28″N 40°03′19″E , 2007 m a.s.l. , 11 October 2021 , one adult and one deutonymph from mossy soil ( Leg. A. Torunlar ). Mutu district , Tunceli , Türkiye , 39°32'41''N 39°54'40''E , 1511 m a.s.l. , 29 July 2018 , one adult from moss on stone ( Leg. E. Buğa ). The adults were kept in the glass vials, but no larvae were observed .