Bryocoris, FALLEN, 1829

Konstantinov, Fedor V. & Knyshov, Alexander A., 2015, The tribe Bryocorini (Insecta: Heteroptera: Miridae: Bryocorinae): phylogeny, description of a new genus, and adaptive radiation on ferns, Zoological Journal of the Linnean Society 175 (3), pp. 441-472 : 460

BRYOCORIS FALLÉN, 1829

FIGS 4, 5 , 14, 20 , 23, 29 , 36 , 57 , 62, 68, 69 , 80, 81 , 96, 97

Bryocoris Fallén, 1829: 151 . Type species: Capsus pteridis Fallén, 1807 (by monotypy).

Diagnosis

Recognized by the following combination of characters: antennal segment I slightly shorter than head width and distinctly longer than vertex width; labium slightly surpassing fore coxa, labial segment IV short, about twice as long as wide, slightly tapering at apex ( Fig. 23 ); pronotal collar matt, narrow, equal to width of antennal segment I, finely scalloped posteriorly ( Fig. 20 ); pronotum with shallow punctures; sides of scutellum finely scalloped or almost smooth ( Fig. 29 ); costal margin of hemelytron pale yellow, sometimes darkened in apical one-quarter; genital capsule with large twin-coned process above left paramere ( Figs 57 , 62 ); left paramere more than three times as large as right paramere, with distinct sensory lobe and strongly bent apex ( Fig. 69 ); both sexes, sometimes only females, occasionally or usually bracypterous ( Fig. 5 ).

The genus is most similar in body proportions and coloration to Cobalorrhynchus Reuter, 1906 ; however, species of Cobalorrhynchus clearly differ from species of Bryocoris in having claw-shaped, long, thin, and strongly tapering labial segment IV, brown line on the costal margin of hemelytron, and by the structure of genital capsule and left paramere.

Diversity and distribution

Bryocoris includes ten species: Bryocoris bui Hu and Zheng, 2000 ; Bryocoris concavus Hu and Zheng, 2000 ; Bryocoris formosensis Lin, 2003 ; Bryocoris gracilis Linnavuori, 1962 ; Bryocoris insuetus Hu and Zheng, 2000 ; Bryocoris montanus Kerzhner, 1972 ; Bryocoris nitidus Hu and Zheng, 2004 ; Bryocoris persimilis Kerzhner, 1988 ; Bryocoris pteridis (Fallén, 1807) , and Bryocoris xiongi Hu and Zheng, 2000 . Most of these species are restricted to southern China (Sichuan and Yunnan provinces, Taiwan). Bryocoris persimilis and B. montanus are known from the Russian Far East, with B. montanus also recorded from Japan ( Yasunaga, 2000). The distributional range of B. gracilis extends from Sichuan and Hunan provinces of China, Taiwan, and Japan to New Guinea. Only B. pteridis has a wide trans-Palaearctic range, which is almost entirely confined to forest regions.

Remarks

Relatively little attention had been given to this genus until Hu & Zheng’s (2000) work on the Bryocoris of China. These authors described four new species, restored Cobalorrhynchus as a subgenus of Bryocoris , and provided an illustrated key to species and detailed diagnoses for both subgenera.

Figures

Figures 1–9. Dorsal habitus of Bryocorini: 1, Coballorhynchus convexicollis; 2, Coballorhynchus concavus; 3, Hekista laudator; 4, 5, Bryocoris pteridis – 4, macropterous male, 5, brachypterous female; 6, Diplazicoris lombokianus sp. nov.; 7, Bryocorella emboliata HT; 8, 9, Monalocoris filicis, females – 8, pale form, 9, dark form.

Figures 10–21. Scanning electron micrographs of particular characters: 10–14, head and pronotum in lateral view – 10, Diplazicoris lombokianus sp. nov., 11, Dicyphus testaceus, 12, Punctifulvius kerzhneri, 13, Monalocoris filicis, 14, Bryocoris pteridis; 15–21, head and pronotum in dorsal view – 15, D. lombokianus sp. nov., 16, Nesidiocoris tenuis, 17, Punctifulvius kerzhneri, 18, Cylapus citus, 19, Monalocoris filicis, 20, Bryocoris pteridis, 21, Sinervus baerensprungi.

Figures 22–33. Scanning electron micrographs of particular characters: 22–26, head and thorax in ventral view – 22, Diplazicoris lombokianus sp. nov., 23, Bryocoris pteridis, 24, Monalocoris filicis, 25, Nesidiocoris tenuis, 26, Hekista laudator; 27–30, scutellum and hemelytra – 27, D. lombokianus sp. nov., 28, Hekista laudator, 29, Bryocoris pteridis, 30, Nesidiocoris tenuis; 31–33, evaporatory area – 31, 32, D. lombokianus sp. nov., 33, Monalocoris filicis.

Figures 34–45. Scanning electron micrographs of particular characters: 34–41, evaporatory area – 34, 35, Hekista laudator, 36, Bryocoris pteridis, 37, Punctifulvius kerzhneri, 38, Pycnoderes sp., 39, Helopeltis clavifer, 40, Dicyphus testaceus, 41, Cylapus citus; 42–45, femoral trichobotria – 42, Diplazicoris lombokianus sp. nov., 43, Punctifulvius kerzhneri, 44, Pycnoderes sp., 45, Stenotus binotatus.

Figures 46–58. Scanning electron micrographs of particular characters: 46, 47, tarsi in lateral view – 46, Diplazicoris lombokianus sp. nov., 47, Stenotus binotatus; 48–56, pretarsus – 48, 52, D. lombokianus sp. nov., 49, 54, Punctifulvius kerzhneri, 50, Monalocoris filicis, 51, Helopeltis clavifer, 53, Nesidiocoris tenuis, 55, Pycnoderes sp., 56, Stenotus binotatus; 57, 58, genital capsule in caudal view – 57, Bryocoris pteridis, 58, Monalocoris filicis.

Figures 59–78. Male genital capsule in caudal and lateral view: 59, 60, Diplazicoris lombokianus sp. nov., 61, Sixeonotus sp., 62, Bryocoris pteridis, 63, 64, Monalocoris filicis, 65, Pycnoderes sp.; 66–78, parameres – 66, 67, D. lombokianus sp. nov., 66, right, 67, left; 68, 69, Bryocoris pteridis, 68, right, 69, left; 70, 71, Hekista laudator, 70, right, 71, left; 72, 73, Monalocoris filicis, 72, right, 73, left; 74, 75, left paramere of Punctifulvius kerzhneri; 76, left paramere of Sixeonotus sp.; 77, 78, Sinervus baerensprungi, parameres: 77, left, 78, right.

Figures 79–87. Aedeagi: 79, Cylapus citus; 80, 81, Bryocoris pteridis, 80, dorsal, 81, lateral; 82, 83, Diplazicoris lombokianus sp. nov., 82, dorsal, 83, lateral; 84, Sinervus baerensprungi; 85, Eurycipitia clarus; 86, Pycnoderes sp.; 87, Nesidiocoris tenuis. Figs 79–81, 85–87 modified from Kerzhner & Konstantinov (1999).

Figures 88–103. Female genitalia: 88, 89, Diplazicoris lombokianus sp. nov., 88, posterior wall, 89, vulvar area; 90, 91, Hekista laudator, 90, vulvar area, 91, dorsal labiate plate; 92, Sixeonotus sp., vulvar area; 93, Helopeltis clavifer, dorsal labiate plate; 94–103, valvulae – 94, 95, D. lombokianus sp. nov., 94, first, 95, second; 96, 97, Bryocoris pteridis, 96, first, 97, second; 98, 99, Monalocoris filicis, 98, first, 99, second; 100, 101, Hekista laudator, 100, first, 101, second; 102, 103, Pycnoderes sp., 102, first, 103, second.