Cyclocaccus morulus, Hisamatsu, 2016

Hisamatsu, Sadatomo, Bayless, Victoria M. & Carlton, Christopher E., 2016, Revision ofCyclocaccusSharp (Coleoptera: Nitidulidae: Nitidulinae), The Coleopterists Bulletin 70 (4), pp. 825-870 : 825-870

C. morulus species-group

( Figs. 15–21 , Map 5)

Diagnosis. Length 1.88–2.79 (2.36) mm, width 1.53–2.20 (1.91) mm, depth 0.85–1.30 (1.09) mm (n = 17). Differs from other Cyclocaccus species groups by the following combination of characters: body oval; apical margin of abdominal tergite VII usually truncate (widely rounded in C. intermediatus ); prosternum strongly convex along midline, with tuft of setae at middle in males; metanepisternum usually not punctate (densely punctate in C. intermediatus ); inter-mesocoxal distance (n = 4) separated by 1.69– 2.26 times width of inter-procoxal distance; intermetacoxal distance (n = 4) separated by 1.59–1.89 times width of inter-procoxal distance; abdominal sternite III usually with subcoxal lines (absent in C. intermediatus ); lateral margins of abdominal sternite VII strongly serrate; male pro- and mesotarsal segments I to III moderately to strongly dilated; tegmen and median lobe long and slender, usually subparallel-sided (tegmen convergent apically in C. intermediatus ) in ventral view; apices of gonocoxites square.

Distribution. Neotropical Region (one in Central to South America and four in South America).

Comments. Among the congeners, C. intermediatus shows somewhat intermediate characters between C. laeticulus species group and C. morulus species group (see also ‘Note’ of C. intermediatus and ‘Discussion’).

Figures

Fig. 15. Dorsal habitus of Cyclocaccus species in the C. morulus species-group. A) C. lescheni, holotype, B) C. stonyx, holotype, Costa Rica, C) C. stonyx, Panama, D) C. stonyx, Ecuador, E) C. morulus, holotype, F) C. smileyeyes, holotype, Bolivia, G) C. intermediatus, holotype. Scale bars = 1 mm.

Fig. 16. Diagnostic characters of the C. morulus species-group. Cyclocaccus morulus: A) Ventral habitus, B) Head, dorsal view, C) Head, ventral view, D) Labrum, E) Mentum and labium, ventral view, F) Right maxilla, dorsal view, G) Right mandible, dorsal view, H) Scutellum, I) Male abdominal tergite VII, J) Male abdominal sternite VII. Cyclocaccus intermediatus: K) Male abdominal tergite VII. Cyclocaccus morulus: L) Metendosternite, dorsal view, M) Male protibia and protarsus, dorsal view, N) Male mesotibia and mesotarsus, dorsal view, O) Male metatibia and metatarsus, dorsal view, P) Male abdominal tergite VIII and spiculum gastrale, ventral view, Q) Left metanepisternum. Scale bars: A = 1 mm; B–C, I–K, P–Q = 0.5 mm; D–H, L–O = 0.1 mm.

Fig. 17. Cyclocaccus lescheni, Peru. A) Tegmen, holotype, ventral view, B) Median lobe, holotype, ventral view, C) Right antenna, holotype, ventral view, D) Ovipositor. Scale bars = 0.1 mm.

Fig. 18. Cyclocaccus stonyx, Costa Rica. A, C, E) Tegmen, ventral view, B, D, F) Median lobe, ventral view, G) Right antenna, ventral view, H) Ovipositor. A–B, G–H from Guanacaste specimens; C–D from Heredia specimen;; E–F from Puntarenas specimen. Scale = equal 0.1 mm.

Fig. 19. Cyclocaccus morulus, Ecuador. A) Tegmen, ventral view, B) Median lobe, ventral view, C) Right antenna, ventral view. Scale bars = 0.1 mm.

Fig. 20. Cyclocaccus smileyeyes, Bolivia. A) Tegmen, holotype, ventral view, B) Median lobe, holotype, ventral view

Fig. 21. Cyclocaccus intermediatus, Peru. A) Tegmen, holotype, ventral view, B) Median lobe, holotype, ventral view, C) Right antenna, holotype, ventral view, D) Ovipositor. Scale bars = 0.1 mm.