Aglyptinus dimorphicus Peck 1972

Peck, Stewart B. & Cook, Joyce, 2014, A review of the small carrion beetles and the round fungus beetles of the West Indies (Coleoptera: Leiodidae), with descriptions of two new genera and 61 new species., Insecta Mundi 2014 (397), pp. 1-76 : 43

Aglyptinus dimorphicus Peck 1972

Figures 82, 83

Aglyptinus dimorphicus Peck 1972: 52 ; 1978: 245. Holotype male in MCZC, seen. Type locality: Windsor Great Cave, Trelawney Parish, Jamaica.

Diagnosis. Length 1.3–1.6 mm; greatest width 0.9–1.2 mm. Shining; color light to dark reddish brown; appendages and elytral epipleura paler in darker specimens. Head, pronotum and elytra minutely, sparsely punctate. Antennae short, length about equal to width of head. Maxillary palps unmodified. Eyes moderately small. Wings dimorphic, either of normal length and apparently functional or reduced to threefourths length of elytra. Metasternum with scattered fine punctures medially and fine longitudinal lines of microsculpture posterolaterally. Male protarsi and mesotarsi densely setose. Major male metafemur longer, posterior margin concave. Aedeagus ( Fig. 82, 83 ) elongate, slender, angled before middle, depressed before down-turned apex. Parameres thin, straight.

Distribution. The species is known only from Jamaica. Previously known localities, from Peck (1972, 1978). Jamaica. Clarendon Parish. Colonels Ridge. Pedro River, inside and outside Pedro Great Cave. Manchester Parish. Mandeville. Round Hill. Portland Parish. 1 mi W Ecclesdown; 0.5 mi NE Ecclesdown. St. Andrew Parish. Hardwar Gap. Hermitage Dam. Morces Gap. St. Ann Parish. 1 mi S Claremont. Ken Connell Hole (cave). Mt. Diablo, 2.5 mi 3 mi N Ewarton. Mt. Diablo. Brownstown. S of Moneague. Moseley Hall Cave. Thatchfield Great Cave. St. Catherine Parish. St. Claire Cave. Swansea Cave. St. Elizabeth Parish. Peru Cave. Southfield. St. James Parish. Mocho Cave. Brandon Hill Cave, Montego Bay. Maldon School Cave. St. Mary Parish. Goshen. Lucky Hill Farm Cave. Mt. Plenty Cave. Rock Springs Cave, near Pear Tree Grove. St. Thomas Parish. Bath Fountain. Blue Mountain Peak. Corn Puss Gap. Portland Gap. Whitfield Hall. Trelawny Parish. 5 mi N Alberttown. Discovery Bay Marine Lab. Drip Cave. Windsor Great Cave. Windsor.

New records. None.

Remarks. The species has been collected from near sea level to above 7400 feet [2260m] elevation. The species has dimorphic wings; short wings are more frequent in cave and higher elevation forest populations. It has been collected on bat guano in caves and in forests.

Figures

Figures 70–91. Aedeagi, lateral and dorsal apical views, of Aglyptinus. 70, 71) A. bahamensis. 72, 73) A. biseriatus. 74, 75) A. capitaneus. 76, 77) A. fortipunctatus. 78, 79) A. minutus. 80, 81) A. sinuatus. 82, 83) A. dimorphicus (from Peck 1972). 84, 85) A. jamaicensis (from Peck 1972). 86, 87) A. hemipterus. 88, 89) A. maculus. 90, 91) A. parvoculus. Scale line = 0.30 mm, Fig. 70–73, 76–85, 88, 89; 0.35 mm, Fig. 74, 75, 90, 91; 0.45 mm, Fig. 86, 87.