Some Biological Aspects of Bloodworm: Tokunaga, 1964 (Diptera: Chironomidae).

Some biological aspects of local bloodworms in Thailand were investigated. In this study, the larvae of one species of bloodworm, identified as Tokunaga 1936, were reared in plastic containers at 25°C and fed with fish feed solutions three days per week. The eggs sample were processed by histological and TEM techniques.

Taxonomic notes on the genus Uéno, 1931 (Ephemeroptera, Baetidae), with description of three new species from Thailand.

Based on material recently collected in northern Thailand, the present study provides an updated of the genus , including . It comprises six species in Thailand, three of them being new species: Baetiella (Gratia) narumonae, Baetiella (Gratia) sororculaenadinae, Baetiella (Baetiella) bispinosa, Baetiella (Baetiella) baei, Baetiella (Baetiella) lannaensis and Baetiella (Baetiella) bibranchiaBaetiella (Baetiella) baei can be distinguished from other species by the reduction of the posteromedian protuberances on abdominal tergites I-III, the asymmetrical coniform terminal segment of labial palp, the distal margin of abdominal sternites VII-X each with a row of long, spatulate setae, the dorsal margin of femur with two long, robust setae distally. Baetiella (Baetiella) lannaensis is diagnosed by the posteromedian protuberances present on tergites I-VIII, dorsal margin of femur with a regular row of long, rounded, ciliated setae and body surface covered with numerous, dense, rounded scale-like setae.

Forensic efficiency and genetic polymorphisms of 12 X-chromosomal STR loci in Northeastern Thai populations.

Northeastern Thailand comprises one-third of the country and is home to various populations, with Lao Isan constituting the majority, while others are considered minority groups. Previous studies on forensic short tandem repeats (STRs) in Thailand predominantly focused on autosomal STRs but there was a paucity of X-STRs, exclusively reported from the North and Central regions of the country. In this study, we have newly established a 12 X-STRs from a total of 896 samples from Northeastern Thailand, encompassing Lao Isan as the major group in the region, alongside nine minor populations (Khmer, Mon, Nyahkur, Bru, Kuy, Phutai, Kalueang, Nyaw, and Saek).

 gen. nov., a new mayfly genus (Ephemeroptera, Baetidae) from Thailand with description of two new species.

(Ephemeroptera: Baetidae) is established as a new baetid mayfly genus from northern Thailand. Two new species, and , are described. This genus is distinguished from other Baetidae by abdominal segment I, bearing a pair of enlarged, ventrally oriented single gills, covering abdominal sternites II-V; other gills have normal size and are dorsolaterally oriented.

A new species of Acentrella Bengtsson, 1912 (Ephemeroptera: Baetidae) from Thailand.

Following a series of biodiversity surveys conducted in Thailand, Acentrella fimbriata sp. nov. is described and illustrated based on the nymph, male subimago and egg stages.

Description of the final stadium larva of Bayadera serrata Davies Yang, 1996 (Odonata: Euphaeidae) from Thailand.

The damselfly genus Bayadera Selys, 1853 comprises 17 species, but the larvae of only four species have been described. Here we describe the final stadium larva of another species-Bayadera serrata Davies Yang, 1996. Larvae were collected from a headwater stream at Nam Nao National Park, Phetchabun Province, Thailand.