Charletonia justynae Haitlinger, 1987

Haitlinger, Ryszard, Kekeunou, Sévilor & Łupicki, Dariusz, 2014, Charletonia cameroonensis Haitlinger & Kekeunou sp. nov. and the first record of C. justynae Haitlinger, 1987 (Acari: Erythraeidae) from Cameroon with redescription of the species, Zootaxa 3760 (1), pp. 39-53 : 43-46

Charletonia justynae Haitlinger, 1987

( Figs. 12–20 )

Diagnosis. Larva. Four setae between coxae II and III, fnBf 4-4-2, fD 65–94, Ta I 169–194, Ti III 245–296, σI placed at κ, both distally located on genu I.

Description. Larva. Dorsal side of idiosoma with 94 weakly barbed setae in holotype (65–83 in other specimens). One pair of eyes placed at level of posterior margin of scutum. Scutum wider than long; anterior border slightly concave, posterior margin with small concavity. Three pairs of scutalae with short setules, AL longest, ML> PL. Anterior sensillae (ASE) ciliated on their distal ¼ length, placed between bases of AL and ML. Posterior sensillae (PSE) ciliated on their distal ¼ length, longer than ASE ( Fig. 12 ).

Ventral side of idiosoma with a pair of setae 1a placed between coxae I, setae 2a placed between coxae II and four setae placed between coxae III; all these setae with setules. Beyond coxae III 38 barbed setae in holotype (25– 50 in other specimens). NDV = 132 holotype, 93–133 in other specimens. Setae 1b, 2b’, 2b’’, 3b’, 3b’’ located on coxae I, II, III, respectively; all barbed.

Gnathosoma ventrally with ciliated hypostomal setae bs and shorter than other nude hypostomal setae as ( Fig. 13 ). Dorsally a pair of nude adoral setae cs. Pedipalp formula: O-B-B-BBB-BBBNNωζ. Palpfemur and palpgenu with one setulose seta. Palptibia with three setulose setae ( Fig. 13 ). Palptarsus with five normal setae: two long setae and three short setae (one of them distinctly longer than remaining ones), one solenidion placed in proximal part of segment and one eupathidium placed in distal part of palptarsus ( Fig. 14 ).

Leg setal formula: Leg I: Ta 1ω, 2ζ, 26 (22–30); Ti 2φ, 1κ, 18; Ge 1σ, 1κ, 12; Tf 5, Bf 4, Tr 1, Cx 1 ( Fig. 15– 16 ). Leg II: Ta 1ω, 2ζ, 23 (24–30); Ti 2φ, 18 (17–19); Ge 1κ, 12; Tf 5; Bf 4: Tr 1; Cx 2 ( Fig. 17–18 ). Leg III: Ta 1ζ, 25 (25–30); Ti 1φ, 18 (17–19); Ge 12; Tf 5; Bf 2; Tr 1; Cx 1 ( Fig. 19–20 ). σI placed at κ, both located distally on genu I.

Leg lengths: Leg I 874 holotype, 819–927 other specimens; leg II 791, 764–890; leg III 955, 921–1084. IP = 2620 holotype, 2513–2901 other specimens.

Measurements are given in Table 2 .

Material. 38 larvae from Z. variegatus , 6 October 2012, Zamakoe (3º34’44’’ N, 11º39’33’’ E) and Mbankomo (3º52’13’’ N, 11º29’42’’ E), Cameroon; collector S. Kekeunou; one larva from Eupezus rufipes, Bagomojo , Cameroon, date and collector unknown.

Remarks. To date this species was known only from Madagascar and was obtained from undetermined Orthoptera ( Haitlinger 2007a) . All specimens of C. justynae from Cameroon were obtained from Z. variegatus , excluding one specimen obtained from Eupezus rufipes ( Coleoptera : Tenebrionidae ). It is the second record of Charletonia from Tenebrionidae . Previously C. aerolata was found on undetermined Tenebrionidae ( Beron 2008) . Specimens of C. justynae from Cameroon differ from specimens of C. justynae from Madagascar in some characters, especially in 2b’, fD and fV ( Table 2 ). Tarsi I–III indicate high variability in the number of normal setae (Ta I 22–30, Ta II 24–30, Ta III 24–30); also tibiae II and III have a variable number of setae. These facts indicate that both characters, especially number of normal setae on all tarsi, have unimportant taxonomic value and should not be used in keys as for example by Khanjani et al. (2012).

Charletonia justynae belongs to the species group with four setae between coxae II–III, Ta I 160–200 Μm, and Ti III 240–310 Μm. This group includes: C. adellae Haitlinger, 2007 , C. arlettae Haitlinger, 1987 , C. falcata Southcott, 1966 , C. oudemansi Southcott, 1966 and C. barbata Southcott, 1966 ( Southcott 1966; Haitlinger 1987, 2007a). Moreover, partly these dimensions are shared with C. aerolata ( Trägårdh, 1908) , C. enghoffi Southcott, 1991 and C. beninensis Haitlinger, 2007 ( Trägårdh 1908; Southcott 1991; Haitlinger 2007b). It differs from C. adellae in the longer PsFd (74–90 vs. 62–74) and σI placed at microseta κ, both distally located on genu I and beyond normal setae vs. σI placed relatively far from microseta κ and before three last normal setae and famulus ε on Ta I present vs. famulus ε on Ta I absent; from C. arlettae in the shorter ML (61–69 vs. 70–86), PL (51–63 vs. 66–72), 1a (37–52 vs. 54–64), longer Ta I (169–194 vs. 160), Ti I without seta Cp vs. Ti I with seta Cp, palptarsus with 3B, 2N normal setae vs. 4N normal setae; from C. falcata in the shorter MW (85–108 vs. 119), PW (107–124 vs. 136), ISD (64–74 vs. 89), L (100–115 vs. 133), W (112–136 vs. 140), Ti I (193–244 vs. 289), Ti III (245–296 vs. 310) and fD (65–94 vs. 44); from C. oudemansi in the longer L (100–115 vs. 77–92), AP (45–54 vs. 33–37), Ta I (169–194 vs. 158), shorter 1a (37–52 vs. 85) and 1b (72–100 vs. 110); from C. barbata in the longer AL (72–82 vs. 56–65), ML (61–69 vs. 47–58), 3b’’ (51–68 vs. 43), shorter Ti I (193–244 vs. 256), TiIII (245–296 vs. 317), Ti I without Cp vs. Ti I with Cp and cs nude vs cs barbed; from C. aerolata in the longer PW (107–124 vs. 91–103), W (112–136 vs. 101–111), AL 72–82 vs. 38–55), ML (61–69 vs. 40–53) and Ta I (169–194 vs. 140–172); from C. enghoffi in the shorter ISD (64–74 vs. 73–77), ASE (52–70 vs. 70–75), PSE (79–110 vs. 116–129), 1a 37–52 vs. 69–75), longer Ta I (169–194 vs. 156–164), Ta II (154–188 vs. 131–149), Ta III (171–195 vs. 153–167) and σI placed distally to most distal normal setae vs. σI placed proximally to most distal normal setae and from C. beninensis in the longer AL (72–82 vs. 66–70), Ta I (169–194 vs. 156–170), Ta II (154–188 vs. 150–156), Ta III (171–195 vs. 162–174), IP (2513–2906 vs. 2346–2552), palptarsus with 3B, 2N normal setae vs. palptarsus with 4N normal setae, tarsus I with famulus ε vs. tarsus I without famulus ε, Ti I without Cp vs. Ti I with Cp, fn Ta II (23–30 vs. 20), fn Ta III (25–30 vs. 21) and anterior border straight vs. anterior border slightly concave.

Figures

FIGURES 12 – 14. Charletonia justynae Haitlinger, 1987 (larva). 12. Scutum; 13. Gnathosoma; 14. Palptarsus.

FIGURES 15 – 20. Charletonia justynae Haitlinger, 1987 (larva). 15. Leg I, tarsus – tibia; 16. Leg I, genu – coxa; 17. Leg II, tarsus—tibia; 18. Leg II, genu—coxa; 19. Leg III, tarsus—tibia; 20. Leg III, genu – coxa.

Tables

TABLE 2. Metric data for Charletonia justynae Haitlinger, 1987 from Madagascar (1) and Cameroon from Zonocerus variegatus (2) and from Eupezus rufipes (3).

	1 (n=3)	2 (n = 20)	3 (n= 1)		1	2	3
IL	463–3280	823–1370	1421	PaGe (L)	32	29–31	30
IW	279–1216	591–1022	836	PaGe (W)	24	17–22	18
L	106–112	100–115	104	Ta I	178–194	169–187	173
W	112–136	114–129	114	Ti I	209–244	193–225	199
AW	80–94	75–86	74	Ge I	149–182	133–174	148
MW	98–108	85–98	88	Tf I	83–102	83–99	93
PW	110–124	107–119	108	Bf I	82–128	94–103	107
AA	12–14	10–12	12	Tr I	54–64	53–63	60
SB	22–24	20–23	21	Cx I	64–80	77–84	79
ISD	64–74	65–73	69	Ta II	166–188	154–186	166
AP	46–54	45–52	52	Ti II	175–204	164–203	179
AL.	76–82	72–77	75	Ge II	121–144	125–151	134
ML	62–66	61–69	63	Tf II	74–92	76–98	93
PL	51–60	55–63	57	Bf II	90–104	88–106	101
ASE	62–70	52–61	–	Tr II	54–56	57–65	76
PSE	89–110	79–89	81	Cx II	74–83	81–92	90
DS.	34–74	30–74	40–61	Ta III	180–186	171–195	178
GL	169	143–156	147	Ti III	251–296	245–286	256
1a	37–50	40–52	44	Ge III	152–174	139–179	157
2a	57–80	42–65	-	Tf III	107–132	110–131	117
1b	80–100	72–96	82	Bf III	106–126	103–120	101
2b’	72–100	63–77	65	Tr III	54–70	58–71	63
2b’’	63	52–63	51	Cx III	82–91	93–102	85
3b’	61	52–68	59	fD	80–94	65–83	-
3b’’	60	51–68	53	fV	38–50	25–32	-
cs	47	30–45	32	Leg I	874–976	819–927	859
bs	51	35–49	41	Leg II	791–858	772–890	839
as	21	17–26	19	Leg III	955–1062	921–1084	957
OD	32	20–28	26	IP	2620–2906	2513–2901	2653
PaFe (L)	55	49–56	54	PsFd	82	74–90	82
PaFe (W)	51	31–35	36	PsGd	42	28–38	28