Agramma Stephens, 1829

Souma, Jun, 2024, Two new species of the genus Agramma (Hemiptera, Heteroptera, Tingidae) from small islands of Japan, with an illustrated key to the Japanese species of the genus, Deutsche Entomologische Zeitschrift 71 (1), pp. 49-65 : 49

Genus Agramma Stephens, 1829

Agramma Stephens, 1829: 64. Type species: Tingis laeta Fallén, 1807, by monotypy.

Note.

For synonyms and detailed descriptions of the genus see Péricart (1983), Péricart and Golub (1996) and Souma (2020).

Remarks.

The genus Agramma comprises 88 extant and one fossil species in three subgenera from the Old World. Among them, two species belonging to the nominotypical subgenus, namely A. (Agramma) abruptifrons (Figs 2A , 3A , 4A , 5A , 6A , 7A , 8A , 9A , 10A, B ) and A. (A.) japonicum (Figs 2D , 3C , 4C , 5E , 6C , 7C , 8C , 9C , 10D ), have been known from Japan to date (cf. Souma 2020). Here, two new species of the nominotypical subgenus, namely A. (A.) izuense sp. nov. and A. (A.) keramense sp. nov., are described from Japan. A key to the four species is provided.

Figures

Figure 2. Habitus of four Agramma species from Japan, dorsal view: A. (Agramma) abruptifrons from Honshu (A); A. (A.) izuense sp. nov. from Hachijo Island, Izu Islands, male (B) and female (C); A. (A.) japonicum from Yakushima Island, Osumi Group, Ryukyu Islands (D); A. (A.) keramense sp. nov. from Geruma Island, Kerama Group, Ryukyu Islands, male (E) and female (F). Scale bar: 1.0 mm.

Figure 3. Pronota of four Agramma species from Japan, dorsal view: A. (Agramma) abruptifrons (A); A. (A.) izuense sp. nov. (B); A. (A.) japonicum (C); A. (A.) keramense sp. nov. (D). Scale bars: 0.2 mm.

Figure 4. Rostra of four Agramma species from Japan, ventral view: A. (Agramma) abruptifrons (A); A. (A.) izuense sp. nov. (B); A. (A.) japonicum (C); A. (A.) keramense sp. nov. (D). Scale bars: 0.2 mm.

Figure 5. Hemelytra of four Agramma species from Japan, dorsal view: A. (Agramma) abruptifrons (A); A. (A.) izuense sp. nov., male (B, C) and female (D); A. (A.) japonicum (E); A. (A.) keramense sp. nov. (F). Scale bars: 0.2 mm.

Figure 6. Male terminalia of four Agramma species from Japan, ventral view: A. (Agramma) abruptifrons (A); A. (A.) izuense sp. nov. (B); A. (A.) japonicum (C); A. (A.) keramense sp. nov. (D). Scale bars: 0.2 mm.

Figure 7. Female terminalia of four Agramma species from Japan, ventral view: A. (Agramma) abruptifrons (A); A. (A.) izuense sp. nov. (B); A. (A.) japonicum (C); A. (A.) keramense sp. nov. (D). Scale bars: 0.2 mm.

Figure 8. Line drawings of pronota of four Agramma species from Japan, dorsal view: A. (Agramma) abruptifrons (A); A. (A.) izuense sp. nov. (B); A. (A.) japonicum (C); A. (A.) keramense sp. nov. (D). Abbreviations: ca, calli; co, collar; fs, frontal spine; mc, median carina; pd, pronotal disc; pp, posterior process. Scale bars: 0.2 mm.

Figure 9. Line drawings of parameres of four Agramma species from Japan, dorsal view: A. (Agramma) abruptifrons (A); A. (A.) izuense sp. nov. (B); A. (A.) japonicum (C); A. (A.) keramense sp. nov. (D). Scale bars: 0.1 mm.

Figure 10. Living individuals of four Agramma species from Japan: A. (Agramma) abruptifrons from Honshu, female (A) and teneral male (B); A. (A.) izuense sp. nov. from Hachijo Island, Izu Islands, female (C); A. (A.) japonicum from Honshu, female (D); A. (A.) keramense sp. nov. from Aka Island, Kerama Group, Ryukyu Islands, male (E), mature (F) and teneral (G) females, and fifth (H) and fourth (I) instar nymphs.