A STUDY ON THE CHINESE SPECIES OF MONALOCORIS DAHLBOM AND TRIBE ECCRITOTARSINI BERG(HEMIPTERA,MIRIDAE,BRYOCORINAE)

In this paper, 5 species of Monalocoris Dahlbom and 9 species of Eccritotars ini (Hemiptera, Miridae, Bryocorinae) are reported, including 3 new species (M ona locoris fulviscutellatus sp. nov. and Monalocoris nigroflavis sp. nov.and Monalocoris ochraceus sp. nov.). Monalocoris amamianus Yasunaga,and Di oclerus t hailandensis Stonedahl and Ernestinus tetrastigma Y asunaga are newly recorded in China. The type specimens are preserved in the Dep artment of Biology, Nankai University, Tianjin, China.Monalocoris Dahlbom, 1851Monalocoris amamianus Yasunaga, 2000Distribution. Guangxi, Yunnan.Monalocoris filicis (Linnaeus, 1758) Distribution in China:Heilongjiang,Shanxi,Gansu,Hubei,Zhejiang,Fujian,Jiangx i,Hunan,Guangdong,Guangxi,Sichuan,Guizhou,Yunnan.Monalocoris fulviscutellatus sp. nov.(Figs.1,8,1 3) Body light yellowish brown, costal margin weakly convex.; Head light yellowish brown. Clypeus brown. Rostrum reaching anterior coxa.Antennal segment Ⅰ light yellowish brown with a brown ring at basal 1/3;segment Ⅱ light yellowish brown with apical 1/3-2/5 yellowish brown, Ⅲ and Ⅳyellowish brown (Fig. 1). Pronotum yellowish brown, posteriorly with tiny shallow pits, slightly shiny. Collar light yellowish brown.Calli shiny, laterally reaching lateral side of pronotum (Figs. 1, 8), callus length about 1/4 times as long as pronotal lateral margin. Scutellum yellowish white. Clavus yellowish brown, its inner margin and commissu re area brown, sometimes its basal half suffused with brown. Corium light yellow,semihyaline, inner apical 2/3-4/5 suffused with brown, anterior margin of this brown area obscure, and obliquely extending from middle of vein Cu to apical 3/4 of ou ter margin of clavus; apical 1/3 of outer corial margin brownish, sometimes forming a longitudinal marking. Embolium light yellow, apical half yellowish brown. Cune us light yellow, semihyaline, basal inner angle brown and apical area yellowish bro wn, cuneus inner margin slightly concave (Fig.13). Membrane pale smoky, mottled. Leg s light yellowish brown with a subapical dark ring. Thorax ventrally yellowish bro wn, abdominal venter yellowish brown or black brown, posterior margin of abdominal s egments Ⅲ-Ⅶ suffused with black. Measurements (mm). Head length 0.2, width 0.6, vertex width 0.3, antennal segment length: 0.3, 0.7, 0.4, 0.3. Collar width 0.4; pronotal length 0.6 , width 1.1. Scutellum length 0.3. Claval commissure length 0.6; corium length 1. 1, wid th 0.6; length of cuneus 0.5; cuneus apex to membrane apex 0.4. Body length 2 .8. Holotype ♀, Yunnan Prov., Xiaomenglong, alt. 810?m, 30 Mar. 1957, LIU Da- Hua leg. (deposited in the Institute of Zoology, Chinese Academy of Sciences). Para type 1♀, Yu nnan Prov., Jinghong County (22.0°N, 100.8°E): Damenglong, alt. 700?m, 10 A pr. 1957, PU Fu-Ji leg. Distribution. China. Related to M. flaviceps Poppius, 1915, but the latter species is larger (abo ut 4?mm), membrane black with pale apex, and antennal segment Ⅰ completely yell ow.Monalocoris nigroflavis sp. nov.(Figs.4, 6, 9,17,18, 20, 21) Head dark yellowish brown. Clypeus black brown. Lateral side of head and buccula black brown or brown. Area around eye yellowish brown, Frons basally slightly black brown. Rostrum reaching anterior coxa. Antennal segments Ⅰ a nd Ⅱ light yellowish brown; apical 2/5-1/2 of Ⅱ dark yellowish brown to black brown;Ⅲ and Ⅳ dark brown or brown. Pronotum black brown, area near posterior margin of pronotum pale yellowish brown, postero-lateral angle light yellowish brown or posteriorly with a large yellowish brown and wide short U-shaped marking, or pronotum dark brown with a large paler area as shown in Fig.4; sometimes pronotum dark yellowish brown and dorso-laterally blackish brown. Pronotal disk convex as shown in Fig.6 and de clivous obviously after the convex area. Collar yellowish brown. Calli shining, blackish brow n or brown, or dark yellowish brown laterally, not extending to lateral side of pronotum (Figs.4). Scutellum dark yellowish brown to black brown, b