Cycreon armandi Review of the flower-inhabiting water scavenger beetle genus Cycreon (Coleoptera, Hydrophilidae), with descriptions of new species and comments on its biology Arriaga-Varela, Emmanuel Wong, Sin Yeng Kirejtshuk, Alexander Fikacek, Martin Deutsche Entomologische Zeitschrift 2018 65 1 99 115 32Z4F Shatrovskiy, 2017 Shatrovskiy 2017 Insecta Hydrophilidae Cycreon CoL Animalia Cycreon armandi Coleoptera 4 103 Arthropoda species armandi   Cycreon armandiShatrovskiy, 2017: 589.  Type locality. Singapore.  Material examined. None (information adopted from Shatrovskiy 2017).  Diagnosis.  Cycreon armandican be distinguished from other known species by the deeply incised clypeus, the semicircular impressions (punctures) on the pronotum, and the curved meso- and metatibae.  Addition to description. Body 3.3 mm long; colouration completely light reddish-brown; clypeus about 2 xas wide as long, anterior margin of clypeus strongly emarginate medially (Fig. 5K); frons and clypeus with small and not so closely disposed punctures; mentum (Fig. 5L) subtrapezoid, widest at posterior fifth, about 1.8 xwider than long, with a deep anteromedian emargination reaching beyond the anterior fourth of length; pronotum with dense and shallow, punctation consisting of small setiferous half-moon shaped punctures (Fig. 5M); meso- and metatibiae curved (Fig. 5S); median projection of sternite 9 rounded apically (Fig. 3M); aedeagus (Fig. 3L) with phallobase 0.6 xas long as parameres, almost symmetrical, manubrium narrow and very; parameres continuously narrowing towards apex; median lobe moderately wide (Fig. 3K), slightly constricted in apical fourth; apex acuminate, triagular.  Distribution. Only known from the type locality in Singapore (Fig. 7).  Remarks. According to Shatrovskiy (2017)the proportions of the clypeus are given as 3 xas long as wide, however, the picture in the paper ( Shatrovskiy 2017: 591) shows that the ratio is closer to 2.0 x.