Scaptodrosophila riverata species group
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publication ID |
https://dx.doi.org/10.3897/zookeys.937.49794 |
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publication LSID |
lsid:zoobank.org:pub:3772774D-6906-4106-8396-96CF4581D79A |
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persistent identifier |
https://treatment.plazi.org/id/61434C05-2AA8-54C7-92E9-4C06083CFB11 |
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treatment provided by |
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scientific name |
Scaptodrosophila riverata species group |
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Scaptodrosophila riverata species group View in CoL
Diagnosis.
Body mostly yellow to yellowish brown, without patches; arista with two dorsal branches and one ventral branch in addition to the terminal bifurcation; facial carina large; prescutellar setae usually large, as long as anterior dorsocentral setae; hypandrium usually with a pair of long paramedian setae.
Description.
Male and female: Head (Figs 3 View Figure 3 , 4 View Figure 4 , 5A, B View Figure 5 , 6A View Figure 6 ): Eyes red. Ocellar triangle yellowish brown, with 4-6 setae above ocellar setae. Frons about 1/3 width of head, largely yellowish brown to brown, with a few minute setulae medially. Fronto-orbital pale yellowish brown; anterior reclinate orbital seta usually lateral to and about 1/3 length of proclinate orbital seta; posterior reclinate orbital seta larger than other two orbital setae. Pedicel yellowish brown to brown, with a few of fine setae; first flagellomere pale yellowish. Face yellowish brown. Clypeus mostly yellow. Vibrissa prominent; subvibrissal setae small. Gena and postgena narrow, yellowish brown. Palpus yellow to yellowish brown with several setae.
Thorax (Figs 3 View Figure 3 , 4 View Figure 4 , 5C-F View Figure 5 , 6B, C View Figure 6 ): Mesonotum yellow to yellowish brown uniformly. Postpronotal lobe yellow with 2-3 long setae, and a few of shorter setae. Acrostichal setulae in ca 8-10 regular rows. Prescutellar setae usually as long as anterior dorsocentral setae. Pleura yellow to yellowish brown uniformly. Katepisternal setae usually subequal. Wing hyaline, sometimes infuscate, lacking patch. Basal medial-cubital crossvein absent. R4+5 nearly parallel distally with M1. Halter pale yellowish. Legs mostly yellow.
Abdomen (Figs 3 View Figure 3 , 4 View Figure 4 , 5C-F View Figure 5 , 6B, C View Figure 6 ): Tergites yellow to yellowish brown, lacking patches.
Male terminalia (Figs 7 View Figure 7 - 12 View Figure 12 , 13A-D View Figure 13 ): Epandrium pubescent, with several setae near posterior margin and ventral corner on each side. Surstylus usually with several peg-like prensisetae on caudal margin, and several setae on outer and inner surface. Hypandrium shallow, usually with a couple of paramedian setae distally. Cercus separated from epandrium, pubescent and setigerous. Paramere developed, with few sensillae. Gonopods (as dorsal extension of the hypandrium, see Ashley and Sinclair 2017) fused with each other, broadened to hood-shaped. Aedeagus bifid, glabrous.
Female terminalia (Figs 7 View Figure 7 - 10 View Figure 10 , 11E View Figure 11 , 13E View Figure 13 ): Oviscapt mostly yellowish brown to brown, broadened subapically.
In the following descriptions, only those characters differing from the above description were provided.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.