TABLE 2 in Morphological description and DNA barcoding of Diamesa achipseensis sp. nov. (Diptera: Chironomidae: Diamesinae) from Southwestern Caucasus

TABLE 2. Comparison of adult males characters of Diamesa achipseensis sp. nov. and D. caucasica Kownacki et Kownacka
CharactersD. achipseensis sp. nov. (n=1)D. caucasica Kownacki et Kownacka (n=7), Kownacki & Kownacka 1973; Makarchenko et al. 2022aTotal length, mm3.22.97–3.5, 5–6*Wing length, mm4.13.4–3.6, 3.5*TL/WL0.830.82–0.92AntennaWith slightly reduced plume of setaeWith developed plume of setaeAR0.70–0.741.0–1.22, 0.91*Clypeals107–10Dorsocentrals14–157–12Prealars11–124–6Scutellars3419–29Squamal setae3421–26LR10.670.66–0.68BV13.663.45–3.52SV12.702,63–2.80Tergite IX, number of setae16–1814–39Anal point length, ìm4040–49Superior volsellaeVentral part located on stalk 130–132 µm long and in subapical part with 18–20 needle-shaped setae; dorsal part rounded, with some long setae.Ventral and dorsal parts without stalk, rounded, or elongated-rounded, almost same size, covered with long setae.GonostylusGonostylus narrow crescent-shaped, slightly expanded basally, without any appendages.Gonostylus in basal third or half widened along inner margin and with wedge-shaped appendage directed at angle backwards.HR1.160.90–1.02
Note. Data from Kownacki & Kownacka (1973) are marked with an asterisk