Eurycnemus v. d. Wulp (Diptera, Chironomidae) newly recorded in China

Pharate male, pupa and larva of Eurycnemus cf. nozakii Kobayashi 1998 are described based on the associated material collected from Liaoning Province. This is the first record of this genus in China. The Chinese species is distinctly smaller than the Japanese E. nozakii at all stages, which can be separated from congeners by the presence of hind tibial comb and the absence of basal strong seta on the gonostylus in the male, some differences are also found in the immature stage, which suggest an independent new species rather than the true E. nozakii. Detailed differences are compared among similar taxa from Japan, Russian Far East and China. Pupal exuviae collected from Fujian and Yunnan Provinces were also examined, which can be separated from the above species by the short male genital sac. Because of few different characters at the immature stage among these similar taxa from a wide range, the possible high diversity within this genus is suspected. Based on the current knowledge, the generic diagnosis is emended.

New species of Rhinoleucophenga, a potential predator of pineapple mealybugs

The objective of this work was to describe a new species of Rhinoleucophenga (Diptera: Drosophilidae). Rhinoleucophenga capixabensis sp. nov. is described based on specimens collected from pineapple (Ananas comosus var. comosus) infested with Dysmicoccus brevipes (Hemiptera: Pseudococcidae) in the state of Espírito Santo, Brazil. Distinguishing characters of R. capixabensis sp. nov. include hyaline wings, a strong seta on the second antennal segment, body length of about 2-3 mm, uniformly dark brown scutellum, one pair of strong prescutellar setae, ventral epandrial lobes with about 17-18 teeth, and female cerci with approximately 20 long setae.

Argestes angolaensis sp. nov. (Copepoda: Harpacticoida: Argestidae) from theAngola Basin (Southeast Atlantic), and the phylogenetic characterization of thetaxon Argestes Sars, including the redescription of A. mollis Sars, 1910, and A.reductus (Itô, 1983)

Argestes angolaensis sp. nov. (Copepoda, Argestidae) is described from the Angola Basin. Detailed comparison with the other Argestes species, A. mollis Sars, 1910 and A. reductus (Itô, 1983), which are redescribed in the present contribution, reveals autapomorphies for the genus, finally enabling the characterization of Argestes as a monophylum: 1) body densely covered with fine small cuticular spinules, 2) sensilla of cephalothorax and free thoracic somites arising from long tubercles, 3) antennula with very strong seta terminally on 6th segment in female (9th–10th in male). This investigation, concentrating on the systematic status of Argestes and first remarks on its relationships to Parargestes Lang, is the first in a series dedicated to the phylogeny of Argestidae Por, 1986.