Morellia (M.) hervebazini (Séguy, 1935), Seguy, 1935

Pamplona, Denise, Nihei, Silvio S., Couri, Márcia S. & Pont, Adrian C., 2016, Taxonomy of Morellia Robineau-Desvoidy (Diptera: Muscidae): revision of the subgenera Morellia s. str. and Parapyrellia Townsend, Zootaxa 4163 (1), pp. 1-110 : 41-43

16. Morellia (M.) hervebazini (Séguy, 1935)

( Figs 60–63 )

Rypellia hervebazini Séguy, 1935b: 163 (as " Hervé-Bazini "). Type locality: VIETNAM, Chapa. Holotype Ƌ, MNHN (seen).

Redescription. Male. Colour. Black, with grey pruinosity. Frontal vitta and upper half of fronto-orbital plate black, lower half of fronto-orbital plate, face and parafacial black with silver pruinosity; gena with grey pruinosity; antenna black with grey pruinosity; palpus brown; mesonotum metallic black; with one grey-dusted central vitta along presutural acrostichals, and pleura grey pruinose; postpronotal lobe and notopleuron silver pruinose; scutellum with a little grey pruinosity laterally; haltere yellow; calypters brownish, upper calypter on outer half paler; wing without dark markings; abdomen with weak grey pruinosity but last tergite with silver pruinosity.

Body length: 5.5 mm; wing length: 4.5 mm.

Head. Eyes bare but with the usual minute and scattered hairs, separated at level of anterior ocellus by about 0.12 of head width; frons divergent towards lunule; ocellar triangle with 1 pair of setae and 4 pairs of long setulae; about 17 pairs of frontal setae, of which 6 are stronger; postpedicel about 2.3 times the length of pedicel; pedicel with 2 setae and few setulae; arista plumose, with 20 cilia, bare apicad, and with some secondary plumes as far as level of 7th to 8th cilia; vibrissa as long as arista; 1 supravibrissal seta less than half the length of vibrissa, and a few setulae that extend to level of basal fourth of postpedicel; 4 subvibrissal setae followed by 7–8 genal setae.

Thorax. Acrostichals 0+1; dorsocentrals 2+4; intra-alars 1+1; presutural 1; prealar 1, half the length of first supra-alar; supra-alars 2; postpronotals 3; notopleuron with 2 long subequal setae and covered with ground-setulae; postalars 2; intrapostalar 1; scutellum with 1 basal, 1 latero-discal and 1 apical pairs of setae, and latero-ventrally with many setae, the basalmost ones downcurved; postalar wall bare; suprasquamal ridge bare; proepisternal depression bare; proepimeron with about 4 long setae and a few setulae; prosternum broad and setulose; anepisternum with a posterior row of about 8 setae, without upcurved setae on upper-anterior corner, and covered with few short setulae; katepisternals 1+2; anepimeron extensively setulose; katepimeron with 1 setula; anatergite bare; katatergite setulose. Legs: fore femur with a posterodorsal row of setae on apical two-thirds, and a complete posteroventral row of setae; fore tibia with an anterodorsal row of short and strong setae, many setulae on ventral surface, 1 anterodorsal, 1 dorsal and 1 posteroventral preapical setae, and anterior to anteroventral surface with a brush-like ctenidium of golden setulae; fore tarsus with a golden ctenidium and some long setae on basal segment; mid femur without a tubercle, with 1 anterior seta on middle third, 8 posterodorsal to dorsal setae on apical half, the 2 apical ones stronger, 2 short, subequal spinose posteroventral setae on basal half, and 7 weak ventral setae on basal half; mid tibia with a dorsal row of very strong and short setulae, 2 strong posterior setae on basal two-thirds, 1 dorsal preapical seta and 1 anteroventral, 1 posteroventral and 2 ventral apical setae; hind femur with 3 anteroventral setae on apical third, an anterodorsal row of setae, 2 posterodorsal preapical setae, an excavation on ventral apex and a few posteroventral setulae on apical fourth; hind tibia with 2 subequal anteroventral setae on apical third, an anterodorsal row of short setae of which the middle one is longest, a dorsal row of short but strong setulae, 1 posterior seta on basal third, 2 subequal posteroventral setae similar to the anteroventral ones, 1 dorsal and 1 anterodorsal preapical setae, no apical setae and a posterior brush-like ctenidium; hind tarsus with a golden brush and long setae ventrally. Wing with a uniform covering of microtrichia; dm-cu sinuous; stem-vein bare on dorsal surface, and ventrally with about 5 short setulae before humeral cross-vein and bare after humeral crossvein; R2+3 bare on dorsal and ventral surfaces; R4+5 setulose from base to one-third the distance to r-m on dorsal surface and at base on ventral surface; 4 strong setae on basicosta.

Abdomen. With a lateral tuft of setulae on syntergite 1+2; tergites 3, 4 and 5 with setae apically; tergite 5 with few setae laterally and with a few discal setae; sternite 1 setulose; posterior margin of sternite 5 concave, with setae on membrane and 2 long and strong setae on middle ( Fig. 60 ).

Terminalia. Outer middle third of cercal plate convex; epandrium with long setae ( Figs 61–62 ); surstylus with some setae; aedeagal apodeme narrow; basiphallus long; aedeagus with spicules on anterior membrane of distiphallus; gonopod with 3 small setae; paramere with some setulae on apical half ( Fig. 63 ).

Female. Unknown.

Material examined. VIETNAM: Chaba , 8.vi.15, J. Hervé-Bazin, ex coll. A. Deharme col., holotype Ƌ ( MNHN).

Distribution. ORIENTAL: Vietnam.

Figures

FIGURES 60 – 63. Morellia (M.) hervebazini (Séguy), holotype male. 60. Sternite 5. 61. Cercal plate and epandrium. 62. Left surstylus. 63. Phallic complex, lateral view.