Coenosia aristalis ( Emden, 1940: 201 )

Couri, Márcia & Pont, Adrian, 2016, Species of Coenosia Meigen (Diptera, Muscidae) described by Fritz van Emden from the British Museum Ruwenzori Expedition of 1934 – 1935, Zootaxa 4144 (4), pp. 529-555 : 533

Coenosia aristalis ( Emden, 1940: 201)

( Figs 9–12 ; 56–58)

Holotype male seen ( Figs 9–12 ); in good condition.

Diagnosis. Medium sized species (4.7–5.8mm); general colour brown with grey pollinosity; scutum with five faint brown vittae; palpus brown; arista plumose ( Fig. 70 of Emden, 1940: 182; Fig. 11 ); legs yellow, including coxae; scutellum with both pairs of setae present and long and with setulae on disc; anterior katepisternal very short; lower calypter about 2.5 times as long as the upper one; haltere yellow; fore tibia with a long median posteroventral seta; hind tibia only with a long and strong median anterodorsal seta; sternite 5 as in Fig. 56 .

Male terminalia. Cercal plate and surstylus as in Fig. 57 . Aedeagal complex as in Fig. 58 .

Notes. Included in the calopoda group. One male (not a paratype) dissected and illustrated.

Figures

FIGURES 1 – 20. Dorsal habitus, lateral habitus, head in frontal view, and labels of types of Coenosia species: 1 – 4. Coenosia aequivitta (Emden), holotype female. 5 – 8. Coenosia argentipes (Emden), holotype male. 9 – 12. Coenosia aristalis (Emden), holotype male. 13 – 16. Coenosia bipila (Emden), holotype male. 17 – 20. Coenosia ciliventris (Emden), holotype male.

FIGURES 65 – 76. Sternite 5; cercal plate and surstyli in dorsal view; epandrium, cercal plate, surstylus and aedeagus in lateral view: 65 – 67. Coenosia chaetomeros (Emden). 68 – 70. Coenosia ciliventris (Emden). 71 – 73. Coenosia cubitalis (Emden). 74 – 76. Coenosia edwardsi (Emden).

FIGURES 53 – 64. Sternite 5; cercal plate and surstyli in dorsal view; epandrium, cercal plate, surstylus and aedeagus in lateral view: 53 – 55. Coenosia argentipes (Emden). 56 – 58. Coenosia aristalis (Emden). 59 – 61. Coenosia aurifacies Emden. 62 – 64. Coenosia brunneigena Emden.