Micropsectra jokatertia Sasa et Ogata, 1999

Giłka, Wojciech & Gadawski, Piotr, 2022, Tanytarsini (Diptera: Chironomidae) collected during Polish expeditions to North Korea, Zootaxa 5214 (2), pp. 151-175 : 154-155

Micropsectra jokatertia Sasa et Ogata, 1999

Micropsectra jokatertia Sasa et Ogata, 1999: 92 (male, fig. 4a–n; Japan).

( Figs 4A, B ; 5C, G )

Material examined. Kŭmgang-san, 28 June – 2 July 1981, 3 males, leg. W. Krzemiński.

Remarks. The enormity of names coming from Japan pertain also to a series of Micropsectra ( Sasa 1984, 1993; Sasa & Okazawa 1994; Sasa & Suzuki 1999; Sasa et al. 2001) of which specimens described under six names at least have to be compared with M. jokatertia . They are: M. chuzelonga Sasa, 1984 , M. inamenea Sasa, Kitami et Suzuki, 2001 , M. inaneoa Sasa, Kitami et Suzuki, 2001 , M. johanaprima Sasa et Okazawa, 1994 , M. tomoprima Sasa, 1993 , and M. tusimaneoa Sasa et Suzuki, 1999 . Based on more or less distinct characters given in original descriptions and observable on photographs of type specimens (cf. NMNS 051:011, 398:015, 402:023, 250:078, 244:001, 356:017, respectively to the above list of names), M. jokatertia (NMNS 352:051) differs from them in having a slender gonostylus ( Fig. 4A vs. M. chuzelonga , M. inamenea ), a longer and/or more slender anal point and its crest ( Fig. 4A vs. M. chuzelonga , M. inaneoa , M. johanaprima , M. tomoprima , M. tusimaneoa ), a longer or more slender digitus ( Figs 4A & 5G vs. M. chuzelonga , M. johanaprima , M. tusimaneoa ), and a lower number of spoon-shaped lamellae of the median volsella ( Figs 4B & 5C vs. M. inamenea ). Consequently, we refrain from synonymization of M. jokatertia , although synonymy within the compared names (excl. M. jokatertia ) is highly probable.

Micropsectra jokatertia fits well the concept of the notescens group analysed on the basis of key structures of the hypopygium ( Giłka 2001b). When M. jokatertia is included to a comparison of several well-defined species, it places between M. rilensis Giłka, 2001 and M. recurvata Goetghebuer, 1928 in this series ( Fig. 5 ).

Figures

FIGURE 4. Micropsectra jokatertia Sasa et Ogata, 1999, male. A: hypopygium; B: median volsella, distal part (B magnified × 2 relative to A).

FIGURE 5. Micropsectra jokatertia Sasa et Ogata, 1999 and closely related species of the Micropsectra notescens species group; males, hypopygial diagnostic structures. A, E: M. junci (Meigen, 1818); B, F: M. rilensis Giłka, 2001; C, G: M. jokatertia; D, H: M. recurvata Goetghebuer, 1928. A–D: median and inferior volsellae, E–H: superior volsella and digitus.