Crenitis (Crenitis) apicalis ( Reitter, 1896 )

Jia, Fenglong, Tang, Yudan & Minoshima, Yûsuke N., 2016, Description of three new species of Crenitis Bedel from China, with additional faunistic records for the genus (Coleoptera: Hydrophilidae: Chaetarthriinae), Zootaxa 4208 (6), pp. 561-576 : 567-568

Crenitis (Crenitis) apicalis ( Reitter, 1896)

( Figs. 24–32 , 55 , 70–72 )

Material examined. CHINA: Inner Mongolia: 74 specs. ( SYSU, KMNH, NMW) , Inner Mongolia, Yitulihe Town / 13-15.viii.2008 / Fenglong Jia leg. [in Chinese].

Additional material examined. CHINA: Jilin: 8 specs. ( SYSU) , JILIN: Changbaishan / 128°06′23.4"E / 42°24′02.8"N / vii.14.2012, 750m / Keqing Song leg. [in Chinese]; 1 spec., Changbaishan / 1021m / 2004.vii. / Baili Dong leg. [in Chinese]; 1 spec., China , Jilin 1201m / Changbai Mountain / 2004.7, Dbl. leg. ; 8 specs. ( NMW), NE-CHINA: Jilin / 30km NE Baihe City / nr. Hongsi , 17.8., 650m / leg. Jäch 1994 (16). Diagnosis. See key below.

Distribution. China (Jilin, Liaoning, Heilongjiang, Inner Mongolia), Russian Far East. New records for Inner Mongolia.

Figures

FIGURES 24 – 32. Crenitis apicalis (Reitter). 24 – 26: Habitus (24: dorsal view, 25: ventral view, 26: lateral view); 27: head and pronotum, lateral view; 28: head and pronotum, dorsal view; 29: head, ventral view; 30: head and prosternum, ventral view; 31: meso- and metaventrite, ventral view; 32: abdomen, ventral view.

FIGURES 50 – 55. Aedeagi, dorsal view. 50: Crenitis aduncata sp. nov.; 51: C. lianggeqiui sp. nov.; 52: Crenitis sp.; 53 – 54: C. convexa Ji et Komarek (53: from Chongqing, 54: from Ningxia); 55: C. apicalis (Reitter).

FIGURES 63 – 72. SEM photographs. 63 – 66: Crenitis sp., ventral view (63: labrum and mentum, 64: mesoventrite, 65: metaventrite, 66: metafemur); 67 – 69: C. convexa Ji et Komarek, ventral view (67: labrum and mentum, 68: antenna and maxillary palpus, 69: metafemur); 70 – 72: C. apicalis (Reitter) (70: labrum and mentum, 71: antenna and maxillary palpus, 72: metafemur)