Cosmolaelaps Berlese (Mesostigmata: Laelapidae) from southern Brazil, with a new record of a heteromorphic male, description of a new species, and a key to the species reported from that country Author Duarte, Adriane Da Fonseca Author Moreira, Grazielle Furtado Author Cunha, Uemerson Silva Da Author Moraes, Gilberto José De text Zootaxa 2017 4286 4 535 544 journal article 32729 10.11646/zootaxa.4286.4.6 9d2b00be-244a-4203-962b-1144b3a728ea 1175-5326 828773 692B2C15-8D7C-4577-B68D-62A34CA20396 Cosmolaelaps guttulatus ( Karg, 1978 ) Hypoaspis ( Cosmolaelaps ) guttulata Karg, 1978 : 5 . Hypoaspis ( Cosmolaelaps ) guttulata .—Karg, 1979: 72; 1981: 218; 1985: 236; 1987: 291; 1988: 516; Xu & Liang, 1996: 193. Cosmolaelaps guttulatus .—Moreira et al ., 2014: 319. Cosmolaelaps confinisetarum Moreira, Klompen & Moraes, 2014 : 333 (synonymy by Nemati & Gwiazdowicz, 2016 : 546 ). Cosmolaelaps guttulata .— Nemati & Gwiazdowicz, 2016 : 546 . Material examined. ACeguá-RS, Brazil , soil, five females ( 5 MarCh and 26 June 2012 , 20 August 2013 ) and two heteromorphiC males ( 26 June 2012 ), ColleCted by A. da F. Duarte. Rodovia Geraldo de Barros, km 204, São Pedro- SP, Brazil , litter under Syagrus oleracea (Mart.) ( AreCaCeae ), one male ( 10 August 2000 ), ColleCted by A.R. Oliveira. NúCleo AgríCola Vale Ribeira, IAC , Pariquera-Açu-SP, Brazil , soil under Bactris setosa Mart. ( AreCaCeae ), one male ( 18 April 2000 ), ColleCted by A.R. Oliveira (deposited at ESALQ-USP). Description of the heteromorphic male. Diagnosis. Dorsal idiosoma and gnathosoma similar to homeomorphiC male, sternogenitiventral shield with seven pairs of setae ( st1–st5 , Jv1 and Zv1 ); unsClerotised CutiCle with eight pairs of setae ( Jv2–Jv5 , Zv2–Zv5 ). Two pairs of elongate metapodal plates. Dorsal idiosoma . Dorsal shield 387–415 long and 272–275 wide (at level of r6 ), 314–384 long and 231–280 wide in homeomorphiC male; mostly with transverse elongate retiCules, with 39 pairs of setae, inCluding two pairs of extra setae, and one ( Jx3 ) or two ( Jx2 and Jx3 ) unpaired setae. UnsClerotised lateral CutiCle with seven pairs of setae ( r6 , R1 , R2 , R4–R6 , one UR ). All setae sCimitar-shaped, exCept j1 and z1 , setiform. Length of setae shown in Table 1 . TABLE 1. Length of dorsal idiosomal setae of males of Cosmolaelaps guttulatus (Karg, 1978) ; for homeomorphic males, mean (minimum–maximum); for heteromorphic males, minimum–maximum; *Brazilian specimens, paratypes of C. confinisetarum Moreira, Klompen and Moraes, 2014 (junior synonym); – = seta absent.

Seta j1	Homeomorphic males* 19 (18–21)	Heteromorphic males 14–16	Seta J1	Homeomorphic males* 41 (39–45)	Heteromorphic males 41–42
j2 j3 j4	32 (31–32) 40 (37–44) 43 (38–50)	38–42 44–46 46–49	J2 J3 J4	40 (38–43) 36 (35–38) 33 (30–37)	39–41 38–39 32
j5 j6 z1	45 (41–48) 43 (40–46) 18 (16–20)	29–51 45–50 24	J5 Jx2 Jx3	24 (21–29) 36 (32–39) 34 (32–40)	21–27 33 29–33
z2 z3 z4	37 (29–44) 42 (37–45) 43 (40–47)	49 42–45 51–53	Jx4 Z1 Z2	31 (28–35) 42 (39–46) 41 (38–46)	– 44–45 40–43
z5 z6 s1	43 (40–47) 44 (40–48) 33 (30–36)	49–50 47–49 37	Z3 Z4 Z5	38 (34–42) 34 (31–39) 40 (37–42)	40–41 39–40 45–48
s2 s3 s4	34 (27–38) 39 (36–45) 45 (43–51)	41 43–49 50–51	S1 S2 S3	34 (32–36) 37 (34–41) 37 (36–38)	41–42 41–42 37–41
s5 s6 r2	47 (44–49) 38 (37–39) 30 (27–35)	53–54 42–44 34–37	S4 S5 px2	34 (32–36) 33 (30–37) 39 (34–47)	37–39 38–40 31–36
r3 r4 r5	37 (35–38) 37 (36–38) 40 (39–41)	40 39–40 40–42	px3 R1 R2	36 (34–38) 18 (17–19) 19 (18–19)	35 26–28 27–28
r6	18 (17–19)	26–30	R4 R5 R6	17 (17–17) 17 (16–17) –	27–28 26–28 30

UR1 18 (17–19) 28–30 Ventral idiosoma ( Fig. 1 ). Sternogenitiventral shield 240–242 long and 64–70 wide (behind Coxae IV), with seven pairs of setae ( st1–st5 , Jv1 and Zv1 ). UnsClerotised CutiCle with eight pairs of setae ( Jv 2– Jv 5, Zv 2– Zv 5) around anal shield. Length of setae shown in Table 2 . Two anterior lobes of sternogenitiventral shield as sClerotised as remainder of the shield. Two pairs of elongate metapodal plates. Peritreme, gnathosoma and legs similar to those in homeomorphiC male. TABLE 2. Length of ventral idiosomal setae of males of Cosmolaelaps guttulatus (Karg, 1978) ; for homeomorphic males, mean (minimum–maximum); for heteromorphic males, minimum–maximum. *Brazilian specimens, paratypes of C. confinisetarum Moreira, Klompen and Moraes, 2014 (junior synonym).

Seta	Homeomorphic males*	Heteromorphic males
h1	21 (20–23)	12–15
h2	11 (10–13)	13–14
h3	24 (23–25)	17–23
Pc	15 (15–18)	19–20
st1	26 (25–27)	30–31
st2	25 (23–28)	25–27
st3	24 (22–26)	24–28
st4	24 (22–28)	27–29
st5	23 (21–25)	27
Jv1	31 (25–34)	14–27
Jv2	33 (28–38)	32
Jv3	26 (22–31)	29–31
Jv4	20 (18–22)	26–30
Jv5	25 (22–27)	35
Zv1	27 (23–32)	25
Zv2	29 (25–36)	29–31
Zv3	17 (17–18)	24
Zv4	18 (16–20)	25–26
Zv5	18 (17–19)	20–27
Para-anal	16 (13–19)	20–21
Post-anal	22 (19–24)	28–31

Remarks. HeteromorphiC males have been reported for Cosmolaelaps vacua (MiChael, 1891) by GwiazdowiCz (2004) , C . cuneifer (MiChael, 1891) by wisniewski (1982) and C . michaeli (Huhta & Karg, 2010) by Khalili-Moghdam & Saboori (2015) . In C . vaccus and C . michaeli , the most distinCtive differenCe between homeomorphiC and heteromorphiC males is the prominent outgrowth in the ventrianal region of the holoventral shield of heteromorphiC males. Additionally, the heteromorphiC male of C . michaeli has leg IV distinCtly stronger than the others and with two spur-like ventral struCtures ( Khalili-Moghadam & Saboori, 2015 ), whereas the heteromorphiC male of C. vacuus has dorsal shield longer than the respeCtive homeomorphiC male ( GwiazdowiCz, 2004 ). In the C . guttulatus heteromorphiC male, the tarsus of leg IV is similar to the tarsi of the other legs and the dorsal shield of the homeomorphiC male is longer [463 (419–535)] than that in the heteromorphiC male [387–415].