(Figs. 3 –4, 10, 14 –15, 21– 23)
Lygaeus pulicarius Fallén, 1807: 95.
Orthocephalus flavipes Matsumura, 1911: 39.
Chlamydatus pulicarius: Wagner and Weber, 1964: 426; Kelton, 1965: 1132; Kerzhner, 1978: 44; Baoying Qi. and Nonnaizab, 1995: 61; Tamanini, 1982: 127; Schuh and Schwartz, 2005: 42.
Diagnosis: Recognized by the relatively large size, total length 2.65–3.24, the often ovate to obovate body form, submacropterous and the hemelytra just covering the abdomen (Fig. 4), or macropterous, and the unicolorous black dorsum. The coloration of antennal segments I and II varying from yellow to entirely black. Femora dark with pale distal bands or not (Figs. 14–15). Most easily confused with C. pullus, but C. pulicarius total length 2.65 or more, whereas C. pullus always less than 2.40.
Male genitalia (Figs. 21–23): Vesica convoluted, and with a long, apical process and not tapering towards apex; secondary gonopore well sclerotized, distant from apex of vesica; apical portion of phallotheca elongate.
Specimens Examined: CHINA: Hebei Province: Weichang County (41 ° 15 'N, 117 ° 12 'E), 7 males, 6 females, 17–19.vii. 2000, Huaijun Xue leg.. Nei Mongol Autonomous Region: Alihe (50 ° 34 'N, 123 ° 42 'E), 4 males, 6 females, 11.vii. 1988, Hongyang Li leg.; Bugt (48 ° 46 'N, 121 ° 53 'E), 5 males, 4 females, 4.vii. 1988, Hongyang Li leg.; Mordaga (51 ° 17 'N, 120 ° 43 'E), 1 male, 3 females, 8.vii. 1988, Hongyang Li leg.; Tomortei (41 ° 52 'N, 113 ° 8 'E), 2 males, 16 females, 12–13.vii. 2000, Huaijun Xue and Changfa Zhou leg.. Jilin Province: Changbai Mountains (42 ° 2 'N, 128 ° 8 'E), alt. 1100m, 2 males, 1 female, 2.vii. 1986, Hongyang Li and Wenjun Bu leg.. Heilongjiang Province: Mohe County (53 ° 1 'N, 122 ° 27 'E), 1 male, 3 females, 7.vii. 1984, Pingping Chen leg.; Yichun City (47 ° 42 'N, 128 ° 56 'E), 2 males, 2 females, 21.vii. 1980, Leyi Zheng leg.. Sichuan Province: Zoigé County (Dagcagoin) (33 ° 37 'N, 102 ° 57 'E), alt. 3300m, 72 males, 47 females, 25–26.vii. 1963, Shengli Liu, Jiang Xiong and Huanguang Zou leg.. Qinghai Province: Hui Autonous county of Menyuan (37 ° 22 'N, 101 ° 38 'E), 12 males, 2 females, 20.vii. 1989, Leyi Zheng leg.. Ningxia Province: Liupan Mountains (35 ° 24 'N, 106 ° 14 'E), 1 male, 2 females, 7.viii. 1987.
Distribution: China (Hebei, Nei Mongol, Jilin, Heilongjiang, Sichuan, Qinghai, Ningxia), Sweden, Denmark, Russia, Germany, England, France, Spain, Austria, Italy, Canada, and USA.