Trentepohlia (Trentepohlia) septemtrionalis, Alexander, 1921

Podenas, Sigitas, Byun, Hye-Woo & Kim, Sam-Kyu, 2015, Limoniinae crane flies (Diptera: Limoniidae) new to Korea, Journal of Species Research 4 (2), pp. 61-96 : 93

publication ID	https://doi.org/ 10.12651/JSR.2015.4.2.061
persistent identifier	https://treatment.plazi.org/id/E82987F5-A767-4A6A-FF55-9E864EE6FE5A
treatment provided by	Felipe
scientific name	Trentepohlia (Trentepohlia) septemtrionalis
status

Treatment

Trentepohlia (Trentepohlia) septemtrionalis View in CoL Alexan-

der, 1921 Trentepohlia (Trentepohlia) septemtrionalis Alexander, 1921: 119 .

Body, especially abdomen strongly elongate, wings comparatively short and narrow. General body color light brown. Male body length 8.59.2 mm, female 8.3 10.4 mm. Wing length of male 6.0 6.4 mm, female 5.8 6.4 mm.

Head dorsally brown with darker dorsomedian line, sparsely grayish, ventral side yellowish. Vertex covered with short brown semierect setae. Few long erect setae on ventral side. Scape dark brown, elongate, slightly widening distally. Pedicel oval, yellowish brown, slightly darker dorsally. Basal flagellomeres dark brown, elongateoval. Verticils short, about three times as short as respective segments. Pubescence, covering flagellomeres scarce, just slightly shorter than verticils. Rostrum dark brown dorsally, yellowish brown laterally and ventrally. Palpus dark brown, two basal and distal segments elongate, nearly cylindrical and nearly equal in length. Third segment distinctly shorter and wider. Palpomeres covered with sparce erect dark brown setae. Labella dark brown.

Cervical sclerites strongly elongate, dorsally and ventrally dark brown, laterally yellowish brown. Pronotum dark brown. Mesonotal prescutum obscure brownish yellow with distinct brown median line and less distinct lateral lines. Scutal lobes dark brown, laterally obscure yellow, lobes separated by yellowish line. Scutellum dark brown with pale mediofrontal spot. Mediotergite dark brown with indistinct paler median line. Pleura yellowish testaceous, slightly infuscated above frontal coxa. Katepisternum extreemely enlarged, thus first and second pairs of legs widely separated. Thorax ventrally yellow with distinct narrow dark brown median line that extends from head to second pair of coxae in some specimens and reaches third pair in other. Wing ( Fig. 9D View Fig ) yellowish gray, except yellowish costal area. Stigma small brownish, at tip of R 1. Vein Cu seamed with brown, indistinct brownish seaming surrounds branching points of distal veins, brown cloud present in the base of anal angle. Veins pale brown, except pale yellow Sc and R. Venation: Sc long, Sc 1 reaching far beyond branching point of Rs. Sc 2 missing. Rs branches into R 2 + 3 + 4 and R 5, but further R 2, R 3 and R 4 split apart, thus three branches of Rs reach wing margin. R 2 oblique, approximately as long as free tip of R 1 and three times as short as R 3 + 4. R 3 and R 4 strongly diverging, thus cell r 3 very wide at wing margin. R 5 is fused with M 1 + 2 for a long distance, but they split apart and separately reach wing margin. Discal cell missing. Basal deflection of CuA 1 at branching point of M or short distance before it. CuA 2 short, transverse, intersecting A 1 short distance from wing margin, closing cell cup. A 1 straight, A 2 very short and strongly bent towards posterior wing margin, like in Trichocera , thus cell a 1 very wide at wing margin. Anal angle small, with rounded posterior margin. Length of male haltere 0.70 0.85 mm, that of female 0.650.70 mm. Haltere pale, knob slightly infuscated distally. Frontal coxa brownish yellow, median and posterior coxa obscure yellow. Trochanters testaceous, just frontal pair slightly infuscated. Distal margin of trochanter with narrow blackish rim. Femur yellow, the tip dark brown. Tibia white, both ends narrowly darkened, basal end brownish, distal blackish. Femur and tibia covered with very short adherent brownish setae. Basal tarsomere pale yellow, remaining tarsomeres turning brown towards distal end. Setae covering tarsomeres longer than on femur and tibia. Male femur I: 8.0 mm long, II: 9.0 9.3 mm, III: 8.3 mm; tibiae I: 9.6 mm, II: 8.9 mm, III: 8.7 mm; tarsus II: 6.8 mm, III: 6.1 mm long. Claw light brown with darkened apex, basal part of claw slightly enlarged, but without additional spine. Abdomen light brown, turning dark brown distally. Distal margins of tergites and sternites narrowly darkened. Darkenings more distinct towards posterior end of abdomen. Male genitalia ( Fig. 9F View Fig ) dark brown. Ninth tergite wider than longer, posterior margin with wide median incision. Gonocoxite elongate, nearly cylindric. Gonostyle ( Fig. 9E View Fig ) typical for most species of the genus, long with small subbasal bump on anterior margin. Tenth tergite of female abdomen blackish brown, cercus and hypovalvae reddish brown. Cercus ( Fig. 9G View Fig ) short, tip acute and turned upwards. Hypovalva wide with acute apex, reaching slightly beyond base of cercus.

Elevation range in Korea. Specimens were collected at few meters altitude only.

Period of activity. Adults are flying at the end of August in South Korea.

Habitats. The species was collected by the author in dense grassy vegetation on the edge of artificial water pond.

General distribution. The species was known from Honshu island, Japan.

Examined materials ( Fig. 10P View Fig ): 4♂♂, 2$$ (in ethanol), S. Korea, Jeollabukdo, Buangun, Byeosanmyeon , Daehangri , Byeonsanbando National Park , Jiksocheon , N35.67249, E126.56445, alt. 26 m, 2014.08.26, coll. S. Podenas ( NIBR) GoogleMaps .

Discussion. Korean T. septemtrionalis differs from type specimen (single female) described from Japan by coloration of thorax. Japanese female has mesonotal prescutum with indistinct median line, while Korean specimens have three distinct prescutal lines. It is possible, that Korean and Japanese specimens belong to related but different species, but comparison of freshly collect ed specimens from Japan and Korea is necessary.