Smicronyx
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publication ID |
https://doi.org/ 10.11646/zootaxa.4508.2.9 |
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publication LSID |
lsid:zoobank.org:pub:47E77D58-680A-411E-884F-955EE996F42F |
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DOI |
https://doi.org/10.5281/zenodo.5996822 |
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persistent identifier |
https://treatment.plazi.org/id/A72C87E1-FFB2-5F71-FF5C-CB10A79390CB |
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treatment provided by |
Plazi |
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scientific name |
Smicronyx |
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Key to species of Smicronyx View in CoL in the tropical Africa
1- Integument reddish, at least partly on elytra, legs reddish ( Fig. 1 View FIGURE 1 A–D, I–J)........................................ 2
1’- Integument of elytra entirely black on mature specimens....................................................... 8
2 - Vestiture of elytra forming a large transverse white stripe on apical half ( Fig. 1K View FIGURE 1 ); scales of elytra rounded, as long as wide or slightly longer than wide; rostrum distinctly downcurved in lateral view ( Fig.4C View FIGURE 4 )....................11. S. zonatus sp. n.
2’ - Vestiture of elytra forming multiple, poorly-defined and narrow transverse whitish stripes ( Fig. 1 View FIGURE 1 A–D, 1I–J); scales of elytra at least twice as long as wide; rostrum moderately downcurved in lateral view ( Fig. 3 View FIGURE 3 A–D, 5I–J)........................ 3
3 - Body size <2.2 mm; apex of penis without setae ( Fig. 5 View FIGURE 5 I–J).................................................... 4
3’ - Body size equal to or over 2.2 mm; apex of penis bearing erect setae distinct in lateral view ( Fig. 5 View FIGURE 5 A–D). S. remaudierei View in CoL species group........................................................................................... 5
4- Integument of fully sclerotized specimens partly black, at least on rostrum and head........... 9. S. pauperculus Wollaston View in CoL
4’- Integument of fully sclerotized specimens entirely red.......................................... 10. S. rufus sp. n.
5 - Profemora armed with a distinct ventral tooth; basal half of interstria 3 with distinct dense spots of white scales ( Fig. 1 View FIGURE 1 A–B)..................................................................................................... 6
5’- Profemora unarmed; basal half of interstria 3 lacking spots of dense white scales ( Fig. 1 View FIGURE 1 C–D)......................... 7
6- Base of pronotum with distinct line of white scales near scutellum ( Fig. 1B View FIGURE 1 ); penis short and truncate at apex ( Fig. 5B View FIGURE 5 ).................................................................................... 2. S. remaudierei Hoffmann View in CoL
6’- Base of pronotum lacking distinct line of white scales near scutellum ( Fig. 1A View FIGURE 1 ); penis elongate and rounded at apex ( Fig 5A View FIGURE 5 ).................................................................................1. S. bisignatus Hoffmann View in CoL
7- Prothorax slightly longer than wide (w/l ratio: 0.92); penis acuminate at apex ( Fig. 5C View FIGURE 5 )............... 3. S. adjamati sp. n.
7’- Prothorax wider than long (w/l ratio: 1.11); penis rounded and incised at apex ( Fig. 5D View FIGURE 5 )............4. S. crassithorax sp. n.
8 - Scales of elytra rounded, at most 1.5 as long as wide.......................................................... 9
8’- Scales on elytra elongate, at least twice as long as wide....................................................... 15 9- Rostrum slender, narrower near antennal insertion than width of femora in middle in dorsal view, distinctly downcurved in lateral view ( Fig. 4 View FIGURE 4 D–E, G–H)............................................................................ 10
9’- Rostrum robust, slightly thicker near antennal insertion than width of profemora near middle in dorsal view, almost straight in lateral view ( Fig. 4F View FIGURE 4 )................................................................... 14. S. kiboanus Voss View in CoL
10- Vestiture of elytra forming white transverse areas at base and in apical half ( Fig. 1L View FIGURE 1 , 2A View FIGURE 2 )............................ 11
10’- Vestiture of elytra lacking contrasting transverse patterns in apical half, scales homogeneous grey with patches of pale brown ( Fig. 2D View FIGURE 2 ), or brown with an oblique paler band of scales from humeri to apical 2/3 of suture ( Fig. 1H View FIGURE 1 , 2C View FIGURE 2 ).............. 12
11- Scales on elytra forming an irregular and narrow white band on apical 1/3 ( Fig. 1L View FIGURE 1 ); penis expanded at apex ( Fig. 5L View FIGURE 5 ).......................................................................................... 12. S. kenyanus sp. n.
11’- Scale on elytra forming contrasting black square in basal half, surrounded by white scales ( Fig. 2A View FIGURE 2 ); penis slightly narrowing from base to apex ( Fig. 5M View FIGURE 5 )........................................................... 13. S. namibicus sp. n.
12- Claws equal in length; scales of elytra homogeneous grey with patches of pale brown, oblique paler band on each elytron not contrasting.......................................................................................... 13
12’- Claws unequal in length, at least on fore legs; scales of elytra brown, generally with contrasted oblique paler band from humeri to apical 2/3 of suture ( Fig. 1H View FIGURE 1 )................................................. 8. S. albosquamosus Wollaston View in CoL
13 - Smaller species, body length under 2.2 mm; elytra with spots of white scales along basal half of interstria 3; penis short (w/l ratio: 0.66), bearing short erect setae near apex ( Fig. 5E View FIGURE 5 )..................................... 5. S. zambianus sp. n.
13’- Larger species, body length over 2.5 mm; scales on basal half of interstria 3 similar in colour to the rest of elytra; penis elongate (w/l ratio: 0.20–0.46), without setae at apex............................................................ 14
14- Penis narrowed near middle ( Fig. 5O View FIGURE 5 ); elytra slightly more slender (w/l ratio: 0.58, Fig. 2C View FIGURE 2 )......... 15. S. guineanus Voss View in CoL
14’- Penis not narrowed near middle ( Fig. 5P View FIGURE 5 ); elytra slightly more robust (w/l ratio: 0.73, Fig. 2D View FIGURE 2 ).......16. S. buchnerae sp n.
15- Pronotum quadrate (w/l ratio: 1.00), sides moderately rounded................................................. 16
15’- Pronotum wider than long (w/l ratio: 1.10), sides rounded....................................... 6. S. syriacus Faust View in CoL
16- Antennal club in dorsal view narrower than apex of rostrum in dorsal view; penis elongate (w/l ratio: 0.36, Fig. 5G View FIGURE 5 ); vestiture of elytra generally forming oblique lines of white spots from humeri to apex ( Fig. 1G View FIGURE 1 )..............7. S. gossypii Marshall View in CoL
16’- Antennal club in dorsal view as wide as apex of rostrum in dorsal view; penis moderately elongate (w/l ratio: 0.60, Fig. 5I View FIGURE 5 ); vestiture of elytra generally forming irregular transverse patches of white scales ( Fig. 1I View FIGURE 1 )............................................................................................ 9. S. pauperculus Wollaston View in CoL (black specimens)
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.
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