On the enigmatic troglobitic scorpion <i>Troglorhopalurus translucidus</i>: distribution, description of adult females, life history and comments on <i>Rhopalurus lacrau</i> (Scorpiones: Buthidae)

Gallão, Jonas Eduardo; Bichuette, Maria Elina

doi:10.1590/S1984-4689zool-20150193

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TAXONOMY AND NOMENCLATURE • Zoologia (Curitiba) 33 (06) • 2016 • https://doi.org/10.1590/S1984-4689zool-20150193 copy

On the enigmatic troglobitic scorpion Troglorhopalurus translucidus: distribution, description of adult females, life history and comments on Rhopalurus lacrau (Scorpiones: Buthidae)

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

We describe for the first time the adult female of the troglobitic scorpion Troglorhopalurus translucidus Lourenço Baptista & Giupponi, 2004, and broaden its known distribution to other sandstone caves at Chapada Diamantina's region. The life history of T. translucidus is reconstructed through morphometric measurements, with a multivariate analysis applied on a set of 16 specimens in all stages (including the holotype) and biological notes. The ontogeny of T. translucidus has seven stages and the litter size is 43 (n = 1). We discuss the isolation of T. translucidus and Rhopalurus lacrau Lourenço & Pinto-da-Rocha, 1997 in caves of Chapada Diamantina, and discuss their troglomorphisms (autapomorphies) among other species related with Rhopalurus . Both species must be considered fragile due their restricted endemism at Chapada Diamantina.

KEY WORDS:
Endemism; Bahia; Chapada Diamantina; sandstone; troglomorphisms

		MNRJ07493	MNRJ58733	MNRJ58734	LES4153	LES7078
Total lenght		40.98	66.85	66.21	63.45	65.59
Prosoma	anterior width	2.80	4.10	4.33	4.07	4.31
	posterior width	4.28	5.85	6.25	5.93	6.39
	lenght	4.59	6.78	6.97	6.50	6.84
Mesosoma	lenght	8.83	16.90	18.19	17.03	16.26
Pedipalp	total lenght	24.95	35.87	36.42	33.87	36.25
Femur	lenght	6.31	9.41	9.39	8.88	9.19
	width	0.96	1.44	1.52	1.42	1.51
	height	0.72	0.98	1.05	0.96	1.05
Patella	lenght	7.38	10.69	11.01	10.02	11.10
	width	1.02	1.87	1.75	1.89	1.80
	height	0.85	1.64	1.54	1.59	1.55
Chela	lenght of chela	11.26	15.77	16.02	14.97	15.96
	lenght of fixed finger	7.28	10.2	10.38	9.85	9.58
	lenght of movable finger	8.13	10.91	11.32	10.27	11.25
	widht of chela manus	0.95	2.20	2.22	2.06	2.28
	heigth of chela manus	1.10	2.34	2.28	2.15	2.32
Metasoma I	lenght	3.53	5.86	5.33	5.32	5.88
	width	2.02	2.96	2.84	2.79	3.05
	height	1.86	2.68	2.67	2.59	2.81
Metasoma II	lenght	4.23	6.90	6.39	6.42	6.64
	width	1.84	2.69	2.77	2.59	2.72
	height	1.68	2.56	2.51	2.41	2.45
Metasoma III	lenght	4.69	7.28	7.08	6.70	7.23
	width	1.66	2.84	2.82	2.65	2.71
	height	1.70	2.54	2.54	2.43	2.54
Metasoma IV	lenght	4.95	7.64	7.37	7.14	7.49
	width	1.68	2.65	2.69	2.47	2.60
	height	1.63	2.43	2.46	2.34	2.48
Metasoma V	lenght	5.80	9.12	8.89	8.50	8.75
	width	1.17	2.43	2.32	2.26	2.44
	height	1.44	2.48	2.37	2.27	2.41
Telson	lenght of vesicle	2.85	4.22	4.02	3.79	4.15
	widht of vesicle	1.29	2.05	2.06	1.89	2.11
	height of vesicle	1.50	2.24	2.30	2.01	2.27
	lenght of telson	4.36	6.37	5.99	5.84	6.50

Eigenvalues		#	Characters	Eigenvectors
Eigenvalue	Percentage	#	Characters	PC 1	PC 2
0.804479000	98.96900000	1	lenght of chela	0.24493	0.023782
0.003751660	0.46154000	2	lenght of fixed finger	0.23897	0.011738
0.001778800	0.21883000	3	lenght of movable finger	0.23840	0.047340
0.000985208	0.12120000	4	lenght of pedipalp femur	0.23922	-0.143100
0.000768502	0.09454300	5	lenght of pedipalp patella	0.23374	-0.062558
0.000335332	0.04125300	6	lenght of metasoma I	0.28231	-0.255490
0.000261687	0.03219300	7	lenght of metasoma II	0.27862	-0.199920
0.000217862	0.02680200	8	lenght of metasoma III	0.27372	-0.107390
0.000119828	0.01474200	9	lenght of metasoma IV	0.25342	-0.014573
6.85347E-05	0.00843130	10	lenght of metasoma V	0.24567	-0.119020
5.10361E-05	0.00627860	11	lenght of vesicle	0.20108	0.145080
2.11041E-05	0.00259630	12	weidht of vesicle	0.22942	0.538620
1.37057E-05	0.00168610	13	height of vesicle	0.24725	0.225420
5.90701E-06	0.00072669	14	anterior weidth of prosoma	0.23374	0.215440
1.49244E-06	0.00018360	15	posterior weidth of prosoma	0.21747	0.311570
0	0	16	lenght of prosoma	0.21851	0.110460
0	0	17	lenght of mesosoma	0.23130	-0.569070

Characters	Stage two		Stage three		Stage four			Male holotype		Female stage five	Female subadult		Female adult
Lenght of chela	3.55	3.37	5.44	5.15	8.26	8.63	8.96	8.99	11.26	10.39	11.75	11.65	15.96	14.97	15.77	16.02
Lenght of fixed finger	2.35	2.31	3.48	3.49	5.17	5.12	5.89	6.03	7.28	7.11	7.53	8.15	9.58	9.85	10.20	10.38
Lenght of movable finger	2.71	2.33	3.98	3.75	5.93	6.12	6.69	6.27	8.13	7.56	8.21	8.51	11.25	10.27	10.91	11.32
Lenght of pedipalp femur	2.04	2.08	3.44	3.28	4.78	4.90	5.32	5.67	6.31	6.27	7.08	7.06	9.19	8.88	9.41	9.39
Lenght of pedipalp patella	2.45	2.55	4.05	3.84	5.45	6.13	6.29	6.26	7.38	7.67	8.21	8.26	11.10	10.02	10.69	11.01
Lenght of metasoma I	0.96	0.90	1.85	1.74	2.76	2.78	3.00	3.03	3.53	3.71	4.24	4.09	5.88	5.32	5.86	5.33
Lenght of metasoma II	1.16	1.09	2.23	2.01	3.17	3.23	3.26	3.64	4.23	4.29	4.93	4.70	6.64	6.42	6.90	6.39
Lenght of metasoma III	1.22	1.32	2.36	2.08	3.42	3.52	3.64	3.82	4.69	4.65	5.13	4.96	7.23	6.70	7.28	7.08
Lenght of metasoma IV	1.53	1.51	2.56	2.33	3.77	3.83	3.86	4.15	4.95	4.87	5.39	5.11	7.49	7.14	7.64	7.37
Lenght of metasoma V	1.86	1.89	3.14	3.06	4.55	4.72	4.64	4.91	5.80	5.94	6.56	6.38	8.75	8.5	9.12	8.89
Lenght of vesicle	1.21	1.15	1.70	1.53	2.33	2.51	2.44	2.68	2.85	3.21	3.08	3.00	4.15	3.79	4.22	4.02
Weidht of vesicle	0.60	0.46	0.71	0.56	1.01	0.99	1.05	1.04	1.29	1.43	1.32	1.49	2.11	1.89	2.05	2.06
Height of vesicle	0.52	0.48	0.62	0.74	1.12	1.13	1.25	1.19	1.50	1.54	1.61	1.60	2.27	2.01	2.24	2.30
Anterior weidth of prosoma	0.98	1.08	1.42	1.34	1.98	2.18	2.28	2.35	2.80	2.95	3.08	2.97	4.31	4.07	4.10	4.33
Posterior weidth of prosoma	1.71	1.59	2.30	1.98	3.25	3.33	3.31	3.51	4.28	4.29	4.56	4.24	6.39	5.93	5.85	6.25
Lenght of prosoma	1.79	1.79	2.56	2.37	3.46	3.80	3.93	3.97	4.59	4.72	5.07	5.14	6.84	6.50	6.78	6.97
Lenght of mesosoma	3.59	3.89	6.65	6.68	9.20	8.77	9.88	9.19	8.83	9.55	11.55	14.34	16.26	17.03	16.90	18.19

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[1] ^*Corresponding author. E-mail: jonasgallao@usp.br