Macropsis costalis ( Matsumura, 1911 )

Tishechkin, D. Yu., 2019, Leafhoppers of the genus Macropsis Lewis, 1836 (Homoptera: Auchenorrhyncha: Cicadellidae: Macropsinae) on Sakhalin - different evolutionary trends in different species, Russian Entomological Journal 28 (2), pp. 107-119 : 112-113

3. Macropsis costalis ( Matsumura, 1911)

Figs 22–28, 79–91, 142–147.

= Pediopsis virescens var. stigmatipennis Matsumura, 1912: 307 . = Macropsis stigmatipennis ( Matsumura, 1912) (synonymy by Tishechkin, 2002).

COLORATION. Male pale yellow or pale green with dark spots on head, pro- and mesonotum, forewings strongly darkened, with light costal margin (Fig. 22). In female, dark coloration reduced to more or less extent so, that a variation range from dark to almost uniformly pale green specimens can be observed (Figs 23–26). Almost all colour variations were found both in the mainland and in the Sakhalin populations; only most light coloured variation (Fig. 26) is absent in our material from the mainland, possibly, due to insufficient material.

MALE ABDOMINAL APODEMES AND PENIS. Abdominal apodemes of 2 nd tergite in male of a peculiar shape, bilobed (Figs 79–80). Sternal apodemes very broad at base, of equilateral triangular outlines (Figs 81–82). Penis in side view rather short and broad (Figs 83–84). Males from Sakhalin (Figs 79–84) and the mainland (Figs 85–91) do not differ in the shape of apodemes and penis.

HOST PLANTS. Salix schwerinii , occasionally, also S. udensis .

MALE CALLING SIGNAL. Calling signal consists of complex phrases following each other almost without gaps ( Figs 142, 145 ). The phrase includes several components, each formed by pulses or short syllables ( Figs 143–144, 146–147 ). Male can sing unceasingly for several minutes. Signal temporal patterns in males from Sakhalin ( Figs 142– 144 ) and the mainland ( Figs 145–147 ) are identical.

RANGE. Khabarovsk Krai, Southern part of Primorsky Krai, Sakhalin, Southern Kurile Islands, Japan.

REMARKS. In morphological and acoustic traits, no significant differences between the mainland and insular populations were found.

M. costalis was described from the Lake Tunaicha (Tonnaitcha) and Chipsani (presently, Ozerskoe), Sakhalin [ Matsumura, 1911]. One year later it was described from Sapporo, Hokkaido, Japan under the name Pediopsis virescens var. stigmatipennis Matsumura, 1912 based on a series of specimens with moderately developed black pattern [Matsumura,

Figs 54–78. Macropsis spp. : 54–65 — M. fuscinervis ; 66–78 — M. suspecta ; 54–55, 60–61, 66–67, and 72–74 — male abdominal apodemes of the 2 nd tergite; 56–57, 62–63, 68–69, and 75–76 — the 2 nd sternite; 58–59, 64–65, 70–71, and 77–78 — penis, lateral view. 54– 59 and 66–71 — males from Sakhalin; 60–65 and 72–78 — males from the mainland.

Рис. 54–127. Macropsis spp. : 54–65 — M. fuscinervis ; 66–78 — M. suspecta ; 54–55, 60–61, 66–67 и 72–74 — аподемы II брюШного тергита самца; 56–57, 62–63, 68–69 и 75–76 — аподемы II брюШного стернита; 58–59, 64–65, 70–71 и 77–78 — пенис сбоку; 54–59 и 66–71 — самцы с Сахалина, 60–65 и 72–78 — самцы с материка.

1912]. We have studied photographs of a type series, which includes 7 specimens, apparently, females with the label “Sapporo, Matsumura” mounted together on the same pin [Figs 27– 28; Tishechkin, 2002]. As can be seen from these photographs, all specimens belong to the green variation of M. costalis .

In the original description the name is written as “ stimatipennis ”; in all later works it is written as “ stigmatipennis ”. In accordance with Article 33.3.1 of the International Code of Zoological Nomenclature [2000], an incorrect subsequent spelling, which is in prevailing use and attributed to the publication containing the original spelling, should be considered the correct original spelling. For this reason, here we use the name “ stigmatipennis ”. As noted in the preface to the Russian translation of the Code (comment 16), the abovementioned article allows ambiguous interpretation, but in this situation, even if uncertainty arises, the question is not of practical importance, since the changed name is a junior synonym.

Figs 79–127. Macropsis spp. : 79–91 — M. costalis ; 92–99 — M. remota ; 100–106 — M. flavida ; 107–118 — M. hinganensis ; 119– 127 — M. fuscula ; 79–80, 85–86, 92–93, 100–101, 107–108, 113–114, 119, and 122–123 — male abdominal apodemes of the 2 nd tergite; 81–82, 87–89, 94–97, 102–104, 109–110, 115–116, 120, and 124–125 — the 2 nd sternite; 83–84, 90–91, 98–99, 105–106, 111–112, 117– 118, 121, and 126–127 — penis, lateral view; 79–84, 92–99, 107–112, and 119–121 — males from Sakhalin; 85–91, 100–106, 113–118, and 122–127 — males from the mainland.

Рис. 79–127. Macropsis spp. : 79–91 — M. costalis ; 92–99 — M. remota ; 100–106 — M. flavida ; 107–118 — M. hinganensis ; 119– 127 — M. fuscula ; 79–80, 85–86, 92–93, 100–101, 107–108, 113–114, 119 и 122–123 — аподемы II брюШного тергита самца; 81–82, 87–89, 94–97, 102–104, 109–110, 115–116, 120 и 124–125 — аподемы II брюШного стернита; 83–84, 90–91, 98–99, 105–106, 111–112, 117–118, 121 и 126–127 — пенис сбоку; 79–84, 92–99, 107–112 и 119–121 — самцы с Сахалина; 85–91, 100–106, 113–118 и 122– 127 — самцы с материка.

Figures

Figs 142–153. Oscillograms of male calling signals: 142–147 — Macropsis costalis; 148–149 — M. remota; 150–153 — M. flavida; 142–144, 148–149 — males from Sakhalin; 145–147, 150–153 — males from the mainland. Faster oscillograms of the parts of signals indicated as “143–144”, “146–147”, “149”, “151”, and “153” are given under the same numbers. Рис. 142–153. Oscillograms of male calling signals: 142–147 — Macropsis costalis; 148–149 — M. remota; 150–153 — M. flavida; 142–144, 148–149 — самцы с Сахалина; 145–147 и 150–153 — самцы с материка. Фрагменты сигналов, обоЗначенные цифрами “143–144”, “146–147”, “149”, “151” и “153” представлены на осциллограммах под такими же номерами.