Halocoryza arenaria (Darlington, 1939)

Erwin, Terry L., 2011, Halocoryza Alluaud 1919, sea-side beetles of the Indian, Atlantic (sensu lato), and Pacific Oceans: a generic synopsis and description of a remarkable new species from Baja California Sur, Mexico (Coleoptera, Carabidae, Scaritini, Clivinina), ZooKeys 127, pp. 1-13 : 4-5

Halocoryza arenaria (Darlington, 1939) Figs 2 5, 8

Schizogenius arenaria Darlington, 1939: 84

Common name.

Sand Saline Catarrh Beetle

Geographic Distribution.

Native, New World. Barbados; Brazil; Dominican Republic; Grenada; Guadeloupe; Jamaica; México - QR, YC; Panamá; Puerto Rico; USA - FL; Virgin Islands - St. John, St. Thomas; natural invasive, Africa - Cameroon.

Way of Life.

Macrohabitat: Lowlands, sea level - 1 meter altitude, on sea beaches and in the intertidal area, at or near the high tide line, and in mangrove swamps. Microhabitat: Adults are ground-dwelling on exposed wet substrate consisting of coquina-coral cemented by very fine silt or sand and covered with seaweed mats. Dispersal abilities: Wing-polymorphic: macropterous form probably capable of flight; brachypterous form, consequently flightless thus vagility limited to walking or running; both forms slow runners. Seasonal occurrence: Adults have been found in March - April, July, and October. Behavior: Adults are nocturnal predaceous halobionts and take cover in the sand or under drift and piles of seaweed on the beach. Populations of this species are associated with the centipede Pectiniunguis halirrhytus Crabill. In the northern part of their range, adults overwinter in the substrate; in the southern part, they likely aestivate during the dry season in the substrate.

References.

Bruneau de Miré (1979), Nichols (1988, Ph.D. dissertation), Peck and Thomas (1998), ( Whitehead (1966, 1969).

Figures

. Figure 1 - 2. 1 Color image, showing habitus of Halocoryza acapulcana Whitehead, 1966, dorsal aspect, ABL = 2.4 mm, ADP 127171; Acapulco, Mexico 2 Color image, showing habitus of Halocoryza arenaria (Darlington, 1939), dorsal aspect, ABL = 2.9 mm, ADP 116798; St. Johns, Virgin Islands.

Figure 4 - 8. 4 Line drawing, showing habitus of Halocoryza acapulcana Whitehead, 1966, dorsal aspect, ABL = 2.4 mm; Acapulco, Mexico; modified from Whitehead 1966 5 Line drawing, showing habitus of Halocoryza arenaria (Darlington, 1939), dorsal aspect, ABL = 2.9 mm; Rio Piedras, Puerto Rico; modified from Whitehead, 1966 6 Line drawing, showing habitus of Halocoryza whiteheadiana sp. n., dorsal aspect, ABL = 2.9 mm; ABL = 2.8 mm, ADP 127139; Isla Del Carmen, Mexico 7 Line drawing, showing male genitalia, median lobe, of Halocoryza acapulcana Whitehead, 1966, left lateral aspect, 0.41 mm (dorsal margin of basal lobe to apex); Acapulco, Mexico; modified from Whitehead 1966 8 Line drawing, showing male genitalia, median lobe, Halocoryza arenaria (Darlington, 1939), left lateral aspect with internal sac everted, 0.41 mm (dorsal margin of basal lobe to apex); Rio Piedras, Puerto Rico; modified from Whitehead, 1966.