Mature In Thong Tube
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Collections were carried out in Kamphaengphet, Lamphun, Lampang and Saraburi provinces, Thailand on 12 May 2014, 27 May 2014, 16 July 2015, and 8 Aug 2015, respectively. All tarantulas were collected and preserved in 95% ethanol. Specimens were transferred to the Center of Excellence in Entomology, Chulalongkorn University, Bangkok, for dissection and identification. All measurements were carried out using a Zeiss Stemi DV4 stereomicroscope equipped with an eyepiece micrometer. Diagnostic features were photographed using an Olympus Camedia c-4040zoom digital camera mounted to the phototube of an Olympus SZ60 stereoscope. Leg length and width measures were made on the left side of all specimens. Length of each leg segment was measured from the dorsal aspect, and leg width was measured at the basal end of the leg segment viewed from dorsal aspect. Tarsal measurements did not include claws. The relation factor (RF) was calculated as the ratio of the length of leg I to leg IV multiplied by 100 (von Wirth and Striffler 2005). Leg formula, the leg lengths in decreasing order, is also presented. Legs, pedipalps, stridulatory organs (cheliceral strikers and maxillae) were measured from the left side of all specimens. Color of morphological parts are as seen in alcohol-preserved specimens unless otherwise noted. The copulatory organs of females were dissected and cleared in 3M aqueous KOH solution. Specimens were identified by comparison of our measurements and images to those in Haupt & Schmidt (2004), Zhu and Zhang (2008), Schmidt (2010), West et al. (2012) and Nunn et al. (2016). All type and voucher specimens are deposited at the Chulalongkorn University Museum of Zoology (CUMZ), Bangkok, Thailand. The following abbreviations are used in the text:
We are grateful to Mr. Sukrid Roetrakulthong, Mr. Chaipat Wimolsuthikul, Mr. Kaweesak Keeratikiat and the Animal Systematics Research Unit, Chulalongkorn University for collecting additional specimens. Special thanks also should be given to Asst. Prof. Chirasak Sutcharit for his kind assistant on photographing specimens. Invaluable comments were provided by Robert Raven, Rick West, Volker von Wirth, Chris Hamilton, and one anonymous reviewer that tremendously improve the manuscript. This research is supported by the 90th Anniversary of Chulalongkorn University, Ratchadaphisek Somphot Fund. 781b155fdc