Dissochaetus cubensis Peck 1999

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 : 10

Dissochaetus cubensis Peck 1999

Figures 12–14

Dissochaetus cubensis Peck 1999: 606 . Holotype male in CMNC, seen. Type locality: Gran Piedra , Santiago de Cuba Province, Cuba.

Diagnosis. Total length 2.0– 2.5 mm. Dark brown; mouthparts, antennomeres I, II and XI and legs paler; elytra pruinose; pubescence reddish yellow. Head finely, densely punctate. Antennae when laid back reaching slightly beyond base of pronotum. Antennomeres VII–X wider than long. Eyes large. Pronotum granulate, transverse, widest at basal one-third; sides rounded, posterior angles obtuse. Elytral sides evenly rounded, apices separately evenly rounded. Fully winged. Large metatibial spur longer than first metatarsal segment. Male first protarsomere about as wide as protibial apex. Median lobe of aedeagus ( Fig. 12 ) elongate, drawn out apically, bearing a pair of short setae laterally before apex. Parameres ( Fig. 12 ) extending beyond apex of median lobe, inwardly curved apically; each paramere bearing two apical setae. Inverted internal sac ( Fig. 13 ) with two pairs of large sclerites. Male genital segment ( Fig. 14 ) longer than wide; sternite lobes with long, straight and thin midline projection; pleurites trilobed, longer lobes bearing long setae.

Distribution. Known only from Cuba. Previously known localities, records in Peck (1999) are: Cuba. Santiago de Cuba Province. Gran Piedra National Park, 1100 m. elevation.

New records. None.

Remarks. Occurring in upper elevation forest.

Figures

Figures 12–24. Male genitalic structures of Dissochaetus. 12) Aedeagus, dorsal view with everted internal sac, of D. cubensis (from Peck 1999). 13) Median lobe of aedeagus, dorsal view with inverted internal sac, of D. cubensis (from Peck 1999). 14) Genital segment, ventral view, of D. cubensis (from Peck 1999). 15) Aedeagus, dorsal view, of D. grenadensis. 16) Genital segment, ventral view, of D. grenadensis. 17) Genital segment, ventral view, of D. jamaicensis (from Peck 1972). 18) Aedeagus, dorsal view, of D. jamaicensis (from Peck 1972). 19) Genital segment, ventral view, of D. portoricensis. 20) Aedeagus, dorsal view, of D. portoricensis. 21) Aedeagus, dorsal view, of D. smithi. 22) Genital segment, ventral view, of D. smithi. 23) Aedeagus, dorsal view, of D. sanctalucia. 24) Genital segment, ventral view, of D. sanctalucia. Scale line = 0.30 mm, Fig. 17-20; 0.35 mm, Fig. 15, 16, 21, 22; 0.40 mm, Fig. 12-14, 23, 24.