Oocyclus Sharp, 1882
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publication ID |
https://doi.org/ 10.11646/zootaxa.5087.2.3 |
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publication LSID |
lsid:zoobank.org:pub:B5807029-3C66-4592-A224-647A3BFD6BB5 |
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DOI |
https://doi.org/10.5281/zenodo.5828079 |
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persistent identifier |
https://treatment.plazi.org/id/A22887D1-5606-DA4A-FF57-F9BAFA62F2E5 |
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treatment provided by |
Plazi |
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scientific name |
Oocyclus Sharp |
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Updated key to the Brazilian species of Oocyclus Sharp View in CoL
This key is adapted from Clarkson & Short (2012) and includes also an additional species from Jordão et al. (2018).
1 Prosternal carina with two or more spine-like setae ( Figs. 3e View FIGURE 3 , 9e View FIGURE 9 )................................................ 2
- Prosternal carina without spine-like setae (see Jordão et al., (2018): Fig. 2a................................ O View in CoL View FIGURE 2 . pilosus
2 Posterolateral angles of pronotum usually rounded (very rarely angulate) ( Figs. 2 View FIGURE 2 , 4 View FIGURE 4 ); prosternum with two or more spine-like setae; elytra with or without iridescent maculae, if present, maculae never blue; elytra with or without rows of erect setae.. 3
- Posterolateral angles of pronotum weakly spinose (see Clarkson & Short, 2012: Fig. 5 View FIGURE 5 ); prosternum always with two spine-like setae; elytra with distinctive blue maculae and a dense row of erect setae ( Fig. 5 View FIGURE 5 )........................... O. decorus View in CoL
3 Prosternal carina set with 2 spine-like setae anteriorly ( Figs. 2 View FIGURE 2 , 7 View FIGURE 7 ).............................................. 12
- Prosternal carina set with more than 2 spine-like setae anteriorly (usually 4–6; Figs. 3 View FIGURE 3 , 6 View FIGURE 6 )............................ 4
4 Elytral surface heavily sculptured to appear bumpy or strongly undulating; glabrous (see Clarkson & Short, 2012: Figs. 1 View FIGURE 1 , 3 View FIGURE 3 ) ................................................................................................... 5
- Elytral surface smooth, without bumps or strong undulations; glabrous or set with setae............................. 6
5 Elytral surface appearing blistered (see Clarkson & Short, 2012: Fig. 3 View FIGURE 3 ).................................. O. alterosa View in CoL
- Elytral surface with irregular sculpturing, but without distinctly raised bumps (see Clarkson & Short, 2012: Fig. 1 View FIGURE 1 ).................................................................................................... O. acuru View in CoL
6 Elytra with setae between rows of systematic punctures, appearing pubescent ( Fig. 12b View FIGURE 12 )............................. 7
- Elytra with weak or non-existent pubescence between rows of systematic punctures ( Figs. 12a, c, d View FIGURE 12 )................... 8
7 Posterolateral angles of pronotum rounded. Elytra pubescence decumbent laterally and on elytral intervals, but with at least two erect rows of setae medially. Posterior margin of the elytra darkly coloured, except for the pale spot on posterior quarter (see Clarkson & Short, 2012: Fig. 9 View FIGURE 9 )................................................................. O. itapercori
- Posterolateral angles of pronotum angulate. Elytra pubescence decumbent; not forming distinct rows medially. Posterior margin of elytra broadly depigmented medially (see Clarkson & Short, 2012: Fig. 13 View FIGURE 13 )............................. O. xanthus View in CoL
8 Posterolateral margins of pronotum angulate (see Clarkson & Short, 2012: Fig. 4 View FIGURE 4 ); elytral surface with very shallowly impressed longitudinal grooves near suture.......................................................... O. caparao View in CoL
- Posterolateral margins of pronotum broadly rounded; elytral surface with or without very shallowly impressed longitudinal grooves near suture.................................................................................... 9
9 Elytra with strong indentation mediolaterally (see Clarkson & Short, 2012: Fig. 7 View FIGURE 7 ); body attenuated posteriorly.. O. fryanus View in CoL
- Elytra without or with only weak indentation mediolaterally; body not attenuated posteriorly........................ 10
10 Elytra surface with shallowly impressed longitudinal grooves; (e.g. Figs. 6a–e View FIGURE 6 ); each elytron with two or more posterior, small rounded pale spots.......................................................................... O. lacia View in CoL sp. n.
- Elytra surface without shallowly impressed longitudinal grooves or with weak undulating grooves near sutural interval; each elytron with a single posterior, rounded pale spot........................................................... 11
11. Elytra with undulating grooves near the sutural interval; TL/GW ratio = 1.65; abdominal ventrites with color strongly contrasting to the legs (e.g. Figs. 3a–e View FIGURE 3 )............................................................ O. espinhacu View in CoL sp. n.
- Elytra without undulating grooves near the sutural interval; TL/GW ratio = 1.80; abdominal ventrites never in strong contrast to the legs.................................................................................. O. itapecum View in CoL
12 Elytra surface with fine punctures (see Clarkson & Short, 2012: Figs. 2 View FIGURE 2 , 6 View FIGURE 6 ); elytral suture raised or not................. 13
- Elytra surface coarsely punctures (see Clarkson & Short, 2012: Fig. 8 View FIGURE 8 ); elytral suture raised......................... 14
13 Posterolateral margins of pronotum angulate, but never spinose ( Figs. 4c View FIGURE 4 , 10c View FIGURE 10 ).................................... 15
- Posterolateral margins of pronotum rounded............................................................... 16
14 Elytra with large, coarse punctures coarsely punctuate and without undulating grooves; posterolateral margins of pronotum angulate...................................................................................... O. iguazu View in CoL
- Elytra with moderately sized, coarse punctures and with undulating grooves; posterolateral margins of pronotum rounded (e.g. Figs. 8a–e View FIGURE 8 )............................................................................ O. sulcatus View in CoL sp. n.
15 Elytra with conspicuous rows of systematic punctures, row 1 bearing long, erect setae in contrast to row 2 ( Figs. 10a–e View FIGURE 10 , 12a View FIGURE 12 ); body size 4.7–5.4 mm; aedeagus as in Fig. 11i................................................ O View in CoL View FIGURE 11 . thysanus sp. n.
- Elytra with hardly distinguishable rows of systematic punctures, rows 1 and 2 with similar setae; body size 5.7–6.3 mm; aedeagus as in Fig. 11c View FIGURE 11 (e.g. Figs. 4a–e View FIGURE 4 )...................................................... O. giganteus View in CoL sp. n.
16 Abdominal ventrites dark brown to black, similar in color to thoracic venter (see Clarkson & Short, 2012: Figs. 2 View FIGURE 2 , 6 View FIGURE 6 ); elytral suture raised or not on posterior half; elytral margins slightly reflexed or not..................................... 17
- Abdominal ventrites uniformly pale yellow or orange, distinctly darker than thoracic venter (see Clarkson & Short, 2012: Fig. 14 View FIGURE 14 ) and in many cases with distinct medial macula present on one or more ventrites (e.g. Fig. 5b View FIGURE 5 ); elytral suture not raised on posterior half; elytral margins not reflexed on posterior half.................................................. 18
17 Each elytron with one rounded pale spot on distal quarter.................................................... 21
- Each elytron with two rounded pale spots on distal quarter.................................................... 22
18 Elytra without a row of large black spots alongside the suture (e.g. Fig. 5a View FIGURE 5 )...................................... 19
- Elytra with a row of large black spots alongside the suture (e.g. Fig. 6a View FIGURE 6 )......................................... 20
19 Elytra surface without setae; abdominal ventrites uniformly pale from yellow to orange (see Clarkson & Short, 2012: Fig. 11 View FIGURE 11 ).......................................................................................... O. rotundus View in CoL
- Elytra surface with setae; one or more abdominal ventrites in many cases with distinct medial macula as wide as or narrower than respective ventrites (e.g. Figs. 5a–e View FIGURE 5 )................................................... O. humboldti View in CoL sp. n.
20 Thoracic venter and legs brown and slightly darker than abdominal ventrites (see Clarkson & Short, 2012: Fig. 12 View FIGURE 12 )................................................................................................. O. schubarti View in CoL
- Thoracic venter and legs dark brown to black and strongly contrast to the yellow abdominal ventrites (see Clarkson & Short, 2012: Fig. 14 View FIGURE 14 )................................................................................. O. yubai View in CoL
21 Elytral suture not raised on posterior half; elytral margins not reflexed on posterior half............................ 23
- Elytral suture raised on posterior half; elytral margins weakly reflexed on posterior half....................... O. flexus View in CoL
22 Elytral intervals with dense pubescence inserted in ground punctation ( Fig 12b View FIGURE 12 ); aedeagus with gonopore located on medial half of median lobe, basal piece tapered ( Fig. 11h View FIGURE 11 )........................................... O. thrixdiastematus View in CoL sp. n.
- Elytral interval with weak or non-existent pubescence inserted in ground punctation ( Figs. 12a, c, d View FIGURE 12 ); aedeagus with gonopore located at four-fifths the length of median lobe, basal piece rounded ( Fig. 11a View FIGURE 11 )......................... O. ecolab View in CoL sp. n.
23 Metaventrite with oval, glabrous posteromedial area about half the length of metaventrite; aedeagus as in Figs. 2 View FIGURE 2 , 15b View FIGURE 15 , in Clarkson & Short (2012)............................................................................ O. aeneus View in CoL
- Metaventrite with oval, glabrous posteromedial area about two-thirds the length of metaventrite; aedeagus as in Figs. 11f View FIGURE 11 ( Fig. 7a–e View FIGURE 7 ).................................................................................. O. ovalis View in CoL sp. n.
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.