Eurhaphidophora tarasovi doitungensis Dawwrueng, Gorochov

Dawwrueng, Pattarawich, Gorochov, Andrei V., Tanomtong, Alongklod & Suwannapoom, Chatmongkon, 2020, Contribution to the knowledge of Rhaphidophorinae (Orthoptera: Ensifera: Rhaphidophoridae) from Thailand: three genera Neorhaphidophora, Eurhaphidophora and Minirhaphidophora, Zootaxa 4853 (2), pp. 235-253 : 240-242

Eurhaphidophora tarasovi doitungensis Dawwrueng, Gorochov et Suwannapoom ssp. nov.

( Figs 15–18 , 48 )

Types Holotype—male; Northern Thailand, Chiang Rai Province, Mae Fah Luang District , Doi Tung Lodge , Doi Tung Development Project Area , elevation 895 m., 19 I. 2018, coll. K. Jiaranaisakul (AUP-02006) .

Description Male: Body is similar to that of E. t. tarasovi . Head with rostral tubercles that are separated from each other by a narrow and deep furrow, and less pressed to each other; lateral ocelli are large and circular; median ocellus is small and nearly circular. The armament of the fore and mid tibiae is similar to that in the nominotypical subspecies but different in the hind tibia [d17e–d17i] and hind basitarsus [d2c (d3c), dac]. Abdomen with rather long rounded median lobe on the eighth abdominal tergite ( Fig 15 ). The process of the ninth abdominal tergite is somewhat shorter than in the nominotypical subspecies with a wider notch between its apical lobules ( Fig 15 ) and with more shallow longitudinal concavity on the ventral surface formed by lateral marginal parts that are less strongly bent downwards almost from the base to the apex of this process ( Figs 16–18 ). Epiproct is also similar to that of E. t. tarasovi , but with a pair of more angular lateral lobes (which are almost tubercle-like in profile; Fig 16 ), with longitudinal median concavity on the dorsoposterior surface that is wider in the middle and runs from the base to almost the apex of epiproct ( Fig 17 ), and with a narrowed apical part that is somewhat less long ( Fig 18 ). Genital plate is transverse and broader than it is long, and with a posterior margin that is almost straight between styli ( Fig 18 ). Colouration is similar to that of the nominotypical subspecies but with the following differences: frons, area between rostral tubercles, eyes, antennal cavities and clypeus are darker; tergites are also darker and only the lateral parts of the abdominal tergites appear pale brown.

Female unknown.

Length (mm) Body 20.9; pronotum 6.6; fore femur 7.3; hind femur 18.5; hind tibia 17.2; hind basitarsus 2.9.

Comparison The new subspecies is very similar to E. t. tarasovi in general appearance but clearly differs in the above-mentioned armament of the hind tibia and hind basitarsus. The projection of the male ninth abdominal tergite is shorter and has a wider notch between its apical lobules, the narrowed apical part of the male epiproct is shorter, lateral lobes of the epiproct are smaller and more angular (tubercle-like in profile), and the male genital plate appears with a posterior margin that is almost straight between the styles.

Etymology The new species is named after the location from where it was collected, Doi Tung Development Project Area.

Figures

FIGURES 15–18. Eurhaphidophora tarasovi doitungensis ssp. nov., male abdominal apex: dorsal (15), lateral (16), posterior (17) and ventral (18) views. Scale bars: 1 mm.

FIGURES 46–48. In-situ: Neorhaphidophora siamensis sp. nov., male (46) and female (47); Eurhaphidophora tarasovi doitungensis ssp. nov., male (48).