Biodiversity of Adult Trichoptera and Water Quality Variables in Streams, Northern Thailand

AbstractThe diversity of adult Trichoptera was surveyed at Mae Tao and Mae Ku watersheds, northern Thailand during July 2011 to May 2012. The aim of the study was to determine the relationship between physicochemical parameters of water quality and adult Trichoptera for monitoring of water quality. A total of 9,475 adult Trichoptera representing 14 families and 126 species were collected. The correlation between the biodiversity of adult Trichoptera and water quality showed that the Ecnomus jojachin, Cheumatopsyche carmentis, C. chryseis, C. lucida, C. chrysothemis, C. dhanikari, Potamyia dryope, Leptocerus dirghachuka, L. trophonios, L. ganymedes, Oecetis scutulata, O. armadillo, O. raghava, O. asmada, O. tripunctata, Setodes flivialis, S. neptunus, S. endymion, S. okypete, Chimarra chiangmaiensis, Paduniella semarangensis, Lepidostoma doligung, Polyplectropus ahas, Psychomyia lak, Marilia sumatrana, Hydroptila thuna and Orthrotrichia typhoeus depended on some physicochemical factors including air temperature, pH, electrical conductivity, turbidity, sulfate, nitrate-nitrogen, orthrophosphate, ammonia-nitrogen and alkalinity in water

Distribution of Ecnomus McLachlan, 1864 (Trichoptera, Ecnomidae) from the Lower Mekong River with a description of Ecnomus stungtrengensis new species

Trichoptera were surveyed from four different physiographic regions of the Lower Mekong River, including the Northern Highlands, the Khorat Plateau, the Tonle Sap Basin and the Mekong Delta in Myanmar, Laos, Thailand, Cambodia and Vietnam.Twenty-three species of the genus Ecnomus, including a new species, were identified and mapped. Ecnomus mammus Malicky & Chantaramongkol, 1993 is a common species which is found from Tonle Sab Basin and Mekong Delta. Ecnomus alkmene Malicky & Chantaramongkol, 1997, E. volovicus Malicky & Chantaramongkol, 1993 and Ecnomus quordaio Malicky, 1993 are the common species in the area of the Northern Highlands and the Khorat Plateau. Ecnomus plotin Malicky & Laudee 2010 is found in the Mekong Delta. Ecnomus triangularis Sun, 1997 is a new species record for Southeast Asia. In addition, E. stungtrengensis sp. n. is described and illustrated. The male genitalia of E. stungtrengensis sp. n. are clearly different from those of other species in the genus Ecnomus by the shape of superior appendages which are slender and bent downwards distally in lateral view

Five new species of Caddisflies (Trichoptera: Insecta) from Upper Tenasserim Range, Thailand and Myanmar

Laudee, Pongsak, Malicky, Hans (2018): Five new species of Caddisflies (Trichoptera: Insecta) from Upper Tenasserim Range, Thailand and Myanmar. Zootaxa 4524 (3): 351-358, DOI: https://doi.org/10.11646/zootaxa.4524.3.

Ceraclea satasookae Laudee & Malicky, 2016, n. sp.

<i>Ceraclea satasookae</i> n. sp. <p>(Figs. 1–4)</p> <p> <b>Type material. Holotype male</b> (PSUNHM). <b>Myanmar:</b> Shan State, Keng Tung Province, Moung Ping, Nam Lok Stream, 21°21’52”N, 099°00’51”E, ca. 443 m a.s.l., 0 3 May 2015, leg. Sai Aye.</p> <p> <b>Paratypes: Myanmar:</b> Same data as holotype, 1 male (PSUNHM). <b>Myanmar:</b> Shan State, Keng Tung Province, Naw-awn, Nam Hlong Stream, 21°13’17”N, 098°44’52”E, 374 m a.s.l., 0 4 May 2015, leg. Sai Aye, 1 male (CHM).</p> <p> <b>Etymology.</b> Named for Assoc. Prof. Dr. Chutamas Satasook, who is the Director of the Princess Maha Chakri Sirindhorn Natural History Museum (PSUNHM).</p> <p> <b>Description.</b> Length of each male forewing 9 mm (n=3); antennal length 1.6 mm (n=3); specimens in alcohol with head and thorax dark brown, mesoscutum dark brown in middle and light brown laterally, forewings brown, abdomen light brown with dark brown terga.</p> <p>Male genitalia (Figures 1–4). In lateral view (Fig. 1), segment IX subrectangular; preanal appendages subtriangular, ventral margins broadly rounded, with long setae subapicoventrally. Segment X long, subquadrate in basal 1/3, cylindrical in apical 2/3, apex blunt, with row of short setae subdorsoapically and tufts of short setae basoventrally and subapicoventrally; inferior appendages complex, connected with each other on huge basal plate; each with subapicodorsal lobe shuttle-like with long setae; its harpago tubular, as long as subapicodorsal lobe; basal part of basal segment rectangular with long, curved, acute basoventral lobe. In dorsal view (Fig. 2), segment IX rounded apically; preanal appendages semicircular, separated for most of their length by deep U; segment X oval with stout setae apical and laterally. In ventral view (Fig. 3), basoventral lobe of each inferior appendage bowling-pin-like, knob with short setae on mesal surface of basal segment of each inferior appendage and claw with long setae subbasolaterally. Phallus with two phallic spines curved upward, membranous apically, sclerotized apicoventrally (Fig. 4).</p> <p> <b>Diagnosis.</b> The male genitalia of the new species are most similar to those of <i>C</i>. <i>senilis</i> (Burmeister 1839), which is common in European countries and Siberia. These two species have similar lateral character of genitalia and dorsal view of preanal appendages. However, they can be distinguished by (1) the length of the forewing which is 12–13 mm (n=5) in <i>C</i>. <i>senilis</i> and 9 mm in <i>C</i>. <i>satasookae</i> <b>n. sp.</b>; (2) the preanal appendages of <i>C</i>. <i>senilis</i> are fused about 1/4 their length and separated apically by a V-shaped incision, but those of <i>C</i>. <i>satasookae</i> <b>n. sp.</b> are fused only at the base and are much more widely separated by a U-shaped incision; (3) the harpago of each inferior appendage of <i>C</i>. <i>senilis</i> is 2/3 as long as its subapicodorsal lobe, but the harpago of the new species is subequal in length to its subapicodorsal lobe; and (4) the new species has a long pointed basoventral lobe of each inferior appendage, which is short and blunt in <i>C</i>. <i>senilis</i>.</p>Published as part of <i>Laudee, Pongsak & Malicky, Hans, 2016, Three new species of Leptoceridae Leach 1815 (Insecta: Trichoptera) from Shan State, Myanmar, pp. 263-270 in Zootaxa 4097 (2)</i> on pages 265-266, DOI: 10.11646/zootaxa.4097.2.8, <a href="http://zenodo.org/record/271073">http://zenodo.org/record/271073</a&gt

Setodes siribumrungsukhai Laudee & Malicky, 2016, n. sp.

<i>Setodes siribumrungsukhai</i> n. sp. <p>(Figs. 5–8)</p> <p> <b>Type material. Holotype male</b> (PSUNHM). <b>Myanmar:</b> Shan State, Keng Tung Province, Naw-awn, Salween River, 21°13’46”N, 098°42’32”E, ca. 251 m a.s.l., 0 4 May 2015, leg. Sai Aye.</p> <p> <b>Paratypes</b>: Same data as holotype, 2 males (PSUNHM); <b>Myanmar:</b> Shan State, Keng Tung Province, Nam Lok Stream, 21°22’50”N, 099°00’49”E, 442 m a.s.l., 0 3 May 2015, leg. Sai Aye, 2 males (CHM).</p> <p> <b>Etymology.</b> Named for Assoc. Prof. Dr. Boonsom Siribumrungsukha who was President of Prince of Songkla University in 2006–2012.</p> <p> <b>Description.</b> Length of each male forewing 6 mm (n=5); antennal length 11 mm; specimens in alcohol with head, thorax, abdomen, and forewings light yellowish brown.</p> <p>Male genitalia (Figures 5–8). In lateral view (Fig. 5), segment IX trapezoidal; preanal appendages apparently absent (fused with base of segment X); segment X deeply divided apically into 2 saber-like blades, very long, gradually curved downward, with tuft of long subbasal setae dorsolaterally; inferior appendages each bilobed: dorsal lobe tubular with long setae, curved downward and ventral lobe scale-like, subapically with numerous long setae. In dorsal view (Fig. 6), segment X long, isosceles triangle, basal 1/4 fused, with many short and long setae subbasally, distal blades subparallel and convergent apically. In ventral view (Fig. 7), inferior appendages rectangular, fused in basal half, each with round knob basolaterally and broad and shallow incision apically, with numerous long setae subapically. Phallus long, curved downward, pointed apically; basal part larger than apical one and separated by a step, tapered and curved downward and pointed apically (Figure 8).</p> <p> <b>Diagnosis</b>. This species belongs to the <i>Setodes hungaricus</i> Group of Schmid (1987). The male genitalia of <i>Setodes siribumrungsukhai</i> <b>n. sp.</b> appear very similar to those of <i>S</i>. <i>spinosellus</i> Ulmer 1930, found in the Philippines. However, the pictures by Ulmer are not very detailed. These species can be distinguished by the shapes of the inferior appendages. The inferior appendages of the new species was are each divided into 2 obvious lobes, with the dorsal lobe cylindrical and curved downward. In contrast, <i>S</i>. <i>spinosellus</i> has undivided inferior appendages, with the dorsal part of each inferior appendage forming a short spine dorsoapically. The ventral lobe of each inferior appendage of the new species is round apically, but this region is truncated in <i>S</i>. <i>spinosellus</i>. The shape of the phallicata of <i>S. spinosellus</i> is falciform and the parameres are paired, long, and spine-like. However, the phallicata in <i>S. siribumrungkhai</i> <b>n. sp.</b> is not so shaped and no parameres are shown.</p>Published as part of <i>Laudee, Pongsak & Malicky, Hans, 2016, Three new species of Leptoceridae Leach 1815 (Insecta: Trichoptera) from Shan State, Myanmar, pp. 263-270 in Zootaxa 4097 (2)</i> on page 266, DOI: 10.11646/zootaxa.4097.2.8, <a href="http://zenodo.org/record/271073">http://zenodo.org/record/271073</a&gt

Neue Köcherfliegen (Insecta, Trichoptera) aus Laos und Kambodscha

Malicky, Hans, Laudee, Pongsak (2019): Neue Köcherfliegen (Insecta, Trichoptera) aus Laos und Kambodscha. Linzer biologische Beiträge 51 (2): 1395-1408, DOI: http://doi.org/10.5281/zenodo.374685

FIGURES 12–16 in Five new species of Caddisflies (Trichoptera: Insecta) from Upper Tenasserim Range, Thailand and Myanmar

FIGURES 12–16. Male genitalia of Psychomyia spp. 12–16, Psychomyia pinsuwanae n. sp.: 12, left lateral; 13, dorsal; 14, ventral; 15, right inferior appendage, mesal. 16, right inferior appendage of P. amphiaraos Malicky and Chantaramongkol 1997, mesal. Inf = inferior appendage (paired), Pre = preanal appendage (paired), SIX = sternal portion of segment IX, Pha = phallus

FIGURES 1–4 in Limnocentropus kritsaneepaibooni new species (Limnocentropodidae: Trichoptera) from Shan State, Myanmar, with faunistic data for the family

FIGURES 1–4. Male genitalia of Limnocentropus kritsaneepaipooni n. sp. 1, genitalia, left lateral: segment IX (IX), segment X (X), upper part of segment X (Up X), lower part of segment X (Lo X), inferior appendages (Inf); 2, segments IX and upper part of Segment X (Up X), lower part of segment X (Lo X), dorsal; 3, segment IX and inferior appendages (Inf), ventral; 4, phallus, left lateral

Setodes salweenensis Laudee & Malicky, 2016, n. sp.

<i>Setodes salweenensis</i> n. sp. <p>(Figures 9–12)</p> <p> <b>Type material. Holotype male</b> (PSUNHM). <b>Myanmar:</b> Shan State, Keng Tung Province, Naw-awn, Salween River, 21°13’46”N, 098°42’32”E, ca. 251 m a.s.l., 0 4 May 2015, leg. Sai Aye.</p> <p> <b>Paratypes</b>: Same data as holotype, 18 males (PSUNHM); <b>Myanmar:</b> Shan State, Keng Tung Province, Nam Lok Stream, 21°22’50”N, 099°00’49”E, 442 m a.s.l., 0 3 May 2015, leg. Sai Aye, 5 males (CHM).</p> <p> <b>Etymology.</b> The species is named for the type locality, the Salween River.</p> <p> <b>Description.</b> Length of each male forewing 6 mm (n=6); antennal length 11 mm; specimens in alcohol with head, thorax, abdomen and forewings light yellowish brown.</p> <p>Male genitalia (Figures 9–12). In lateral view (Fig. 9), segment IX subtriangular and long ventrally; preanal appendages very small, triangular with small setae; segment X triangular, slightly curved downward; inferior appendages each 4-lobed: dorsal lobe tubular with long setae and erect basally then curved caudad, two mesal lobes tubular and 1/3 as long as dorsal lobe with first mesal lobe having long apical setae, basoventral lobe somewhat pentagonal with dorsal margin straight and ventral margin convex and apical margin truncate with small subapical setae. In dorsal view (Fig. 10), segment X trapezoidal, basally slightly broader than apically, truncate apically with small spine in middle; preanal appendages small, oval, with short setae. In ventral view (Fig. 11), segment IX subspherical; inferior appendages subrectangular, truncate apically. Phallus long, curved downward, pointed apically; pair of spine-like parameres long, curved downward, pointed apically (Fig. 12).</p> <p> <b>Diagnosis</b>. This species belongs to the <i>Setodes argentiferus</i> Group (Schmid 1987, = <i>S</i>. <i>argentiguttatus</i> Group of Malicky & Chantaramongkol 2006). Among the species of that Group, the male genitalia of <i>S. salweenensis</i> <b>n. sp.</b> are most similar to those of <i>S</i>. <i>omphale</i> Malicky & Changthong 2006 (in Malicky & Chantaramongkol 2006), <i>S</i>. <i>okypete</i> Malicky & Chantaramongkol 2006, <i>S</i>. <i>okyrrhoe</i> Malicky & Chantaramongkol 2006, and <i>S</i>. <i>opheltes</i> Malicky & Chantaramongkol 2006 all from Thailand, <i>S</i>. <i>venustus</i> Ulmer 1951 from Sumatra, and <i>S</i>. <i>bispinus</i> Yang & Morse 1989 from China and Vietnam. All of these, including the new species, share the characteristics that segment X is triangular in lateral view and rectangular or trapezoidal in dorsal view, inferior appendages are 4- branched, and the phallus is long, curved downward, and pointed apically. However, the new species can be separated from the others by the character of the basoventral lobe of each inferior appendage. <i>Setodes salweenensis</i> <b>n. sp.</b> has a basoventral lobe that is pentagonal and is truncate apically in lateral view. In contrast, most of the other species have this basoventral lobe triangular and pointed apically. This lobe can be obliquely truncate in <i>S</i>. <i>venustus</i> (Ulmer 1951, pl. 21 fig. 649), but the preanal appendages are not apparent in the latter species and its tergum X is rectangular in dorsal view (trapezoidal in <i>S</i>. <i>salweenensis</i> <b>n. sp.</b>).</p>Published as part of <i>Laudee, Pongsak & Malicky, Hans, 2016, Three new species of Leptoceridae Leach 1815 (Insecta: Trichoptera) from Shan State, Myanmar, pp. 263-270 in Zootaxa 4097 (2)</i> on pages 267-268, DOI: 10.11646/zootaxa.4097.2.8, <a href="http://zenodo.org/record/271073">http://zenodo.org/record/271073</a&gt

Three new species of Leptoceridae Leach 1815 (Insecta: Trichoptera) from Shan State, Myanmar

Laudee, Pongsak, Malicky, Hans (2016): Three new species of Leptoceridae Leach 1815 (Insecta: Trichoptera) from Shan State, Myanmar. Zootaxa 4097 (2): 263-270, DOI: 10.11646/zootaxa.4097.2.