Dicranolaius mangalicola Asano ＆ Kawashima, 2010

Sun, Jia-Xiao, Liu, Zhenhua, Ding, Bi, Su, Rongxiang, Huang, Guanmin & Xue, Zhiyong, 2024, Contribution to the tribe Apalochrini (Coleoptera, Melyridae, Malachiinae) of China, with notes on the genus Dicranolaius Champion and Intybia Pascoe, Biodiversity Data Journal 12, pp. e 139509-e 139509 : e139509-

Dicranolaius mangalicola Asano ＆ Kawashima, 2010

Materials

Type status: Other material. Occurrence: recordedBy: Rongxiang Su; individualCount: 1; sex: female; lifeStage: adult; occurrenceID: 4CDF178A-52C6-59A2-B85D-11440ABEE066; Location: country: China; stateProvince: Fujian Province; county: Zhangzhou City; municipality: Yunxiao; locality: The Zhangjiangkou Mangrove Forestry National Nature Reserve ; verbatimCoordinates: 23.91843159 ° N, 117.42167735 ° E; Identification: identifiedBy: Zhenhua Liu; dateIdentified: 2022; Event: samplingProtocol: sweep net; year: 2022; month: 10; day: 17; habitat: mangrove forest; Record Level: basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: recordedBy: JiaXiao Sun; Rongxiang Su; Haitian Song; Zhiyong Xue; individualCount: 11; sex: 9 males, 2 females; lifeStage: adult; occurrenceID: E77AE6BE-127A-5379-AD89-09409995AD28; Location: country: China; stateProvince: Fujian Province; county: Zhangzhou City; municipality: Longhai; verbatimCoordinates: 24.39098123 ° N, 117.91322017 ° E; Identification: identifiedBy: Zhenhua Liu; dateIdentified: 2024-4 - 27; Event: samplingProtocol: sweep net; year: 2024; month: 4; day: 27; habitat: mangrove forest; Record Level: basisOfRecord: PreservedSpecimen

Type status: Other material. Occurrence: recordedBy: Jiaxiao Sun; Rongxiang Su; Haitian Song; Guanmin Huang; individualCount: 19; sex: 8 males, 11 females; lifeStage: adult; occurrenceID: 9FF01F4D-E6E9-5842-B76E-B8C904924D34; Location: country: China; stateProvince: Fujian Province; county: Zhangzhou City; municipality: Yunxiao; locality: The Zhangjiangkou Mangrove Forestry National Nature Reserve ; verbatimCoordinates: 23.91843159 ° N, 117.42167735 ° E; Identification: identifiedBy: Zhenhua Liu; dateIdentified: 2024-4 - 28; Event: samplingProtocol: sweep net; year: 2024; month: 4; day: 28; habitat: mangrove forest; Record Level: basisOfRecord: PreservedSpecimen

Diagnosis

This species can be easily recognised from the congeners by colour patterns on the elytron, with a large arcuate whitish marking open to the lateral margin at base, a small yellow spot on humeral area surrounded by the arcuate marking and a large whitish spot on subapical area (Fig. 1 A, B and D). Some other diagnostic characters are: head with a long median suture from vertex to frons (Fig. 1 E); antennomeres 1 and 3 laterally flattened in males, scape with inner surface depressed; antennomere 3 concaved anteriorly, with a large laminate process at base (Fig. 1 G and H); tergite VIII sub-trapezoid, posterior margin weakly emarginate (Fig. 2 B); sternite VIII transverse, nearly divided at middle (Fig. 2 C); male genitalia with median lobe sub-cylindrical, inner sac with 1 slender sclerite and 2 small spines (Fig. 2 A).

Distribution

China: Fujian (new record for China); Japan.

Biology

The habitat is mangrove forest (Fig. 3 A), this species was collected on the leaves of Aegiceras corniculatum (Fig. 3 B ）.

Figures

Figure 1. Dicranolaius mangalicola Asano ＆ Kawashima, 2010. A male, dorsal view; B male, dorsal view; C male, ventral view; D female, dorsal view; E head; F fore tarsi; G male antenna, dorsal view; H male antenna, lateral view. Scale bars: 1.0 mm (A - D).

Figure 2. Dicranolaius mangalicola Asano ＆ Kawashima, 2010. A male genitalia, ventral view; B pygidium (apical tergite); C ultimate abdominal ventrite (apical sternite).

Figure 3. Habitat and host plant of Dicranolaius mangalicola Asano ＆ Kawashima, 2010. A habitat (photo by Haitian Song); B host plant Aegiceras corniculatum (photo by Haitian Song).