Pachylomalus deficiens Cooman, 1933

Zhang, Ye-Jun & Zhou, Hong-Zhang, 2007, Taxonomy of the tribe Paromalini Reitter (Coleoptera: Histeridae, Dendrophilinae) from China, Zootaxa 1544, pp. 1-40 : 12-13

Pachylomalus deficiens Cooman, 1933 , new for China

(Figs. 28–41)

Cooman, 1933: 196 (Type locality: Vietnam: Hoa-Binh, Tonkin); 1941: 296 (in subgenus Canidius ; figures); Mazur, 1984: 132 (catalogue); 1997: 180 (catalogue).

Synonymy: Pachylomalus tylus Cooman, 1935: 218 ; Mazur, 1984: 132 (listed as synonym.).

Material examined. VIETNAM: 1 ex., Tonkin, Hoa-Binh, 1934, de Cooman coll. (de Cooman det.); 1 ex., Tonkin, Hoa-Binh, 1935, de Cooman coll. (de Cooman det.); 1 ex., Tonkin, Hoa-Binh, 1936, de Cooman coll.

(de Cooman det.); 1 male, Tonkin, Hoa-Binh, 1937, de Cooman coll. (de Cooman det.); CHINA: Yunnan: 1 male, 2 females, Xishuangbanna, west of Menglun, 560 m, dead wood, 2004. II.9, Jie Wu coll.; 2 females, Xishuangbanna, west of Menglun, 730 m, dead wood, 2004. II.13, Jie Wu coll.

Remarks. This species is very different in the body and genitalia morphology from the other congeners like P. m u s c u l u s, P. opulentus Cooman, 1932 and P. sulcatipygus Cooman, 1932 . The differences are summarized in Table 2 . Based on these differences, it might be better to place P. deficiens in a genus, separate from Pachylomalus . However, with only a limited material in hand, this problem can not be solved at present.

Distribution. China (Yunnan); Vietnam, Thailand, India (Meghalaya), Borneo.

FIGURES 60–63. Pachylomalus opulentus Cooman 60. Aedeagus, dorsal view; 61. Male 8th tergite, dorsal view; 62. Male 8th sternum, ventral view; 63. Male 9th and 10th tergites, dorsal view. Scale bars: 60–63 = 0.25 mm.

FIGURES 64–67. Pachylomalus sulcatipygus Cooman 64. Aedeagus, dorsal view; 65. Male 8th tergite, dorsal view; 66. Male 8th sternum, ventral view; 67. Male 9th and 10th tergites, dorsal view. Scale bars: 64–67 = 0.25 mm.