Mecodema, Blanchard, 1853
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publication ID |
https://doi.org/ 10.11646/zootaxa.4598.1.1 |
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publication LSID |
lsid:zoobank.org:pub:6BA5F086-1014-46B5-B6D5-77FE0CD07AEC |
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persistent identifier |
https://treatment.plazi.org/id/03BBD026-0208-B701-90FB-B761E89DFD66 |
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treatment provided by |
Plazi |
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scientific name |
Mecodema |
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Key to North Island Mecodema View in CoL
(includes new combinations of South Island only taxa).
1. Ventrites 3–5 ( Fig. 2 View FIGURE 2 ) with numerous setose punctures each side of midline..................................... 2
- Ventrites 3–5 without setose punctures or with 1–3 setose punctures each side of midline........................... 5
2(1). Protibia ( Fig. 10 View FIGURE 10 ) and mesotibia greatly distally expanded and distinctly inwardly curved.............................................................................................. M. antarctica Castelnau, 1867 View in CoL , comb. n.
- Protibiae distally expanded without inward curve, mesotibiae slender.......................................... 3
3(2). Elytra striae with numerous long setae in apical ¼............................. M. tibiale Castelnau, 1867 View in CoL , comb. n.
- Elytra striae with several setae in apical ¼................................................................ 4
4(3). Mesocoxa ( Fig. 2 View FIGURE 2 ) with 1 setose puncture, metacoxa with 2 setose punctures....... M. moniliferum Bates, 1867 , comb. n.
- Mesocoxa with 2–3 setose punctures, metacoxa with 2–3 setose punctures.......... M. aberrans Putzeys, 1868 View in CoL , comb. n.
5(1). Elytra narrower than pronotum at the widest point........................................ M. chaiup Seldon, 2015 View in CoL
- Elytra broader than pronotum at the widest point ( Fig. 1 View FIGURE 1 ).................................................... 6
6(5). Ventrite 3 without setose punctures each side of midline..................................................... 7
- Ventrite 3 with setose punctures present each side of midline................................................ 18
7(6). Mesocoxa and metacoxa without setose punctures.......................................................... 8
- Mesocoxa and metacoxa each with at least 1 setose puncture................................................ 11
8(7). Number of submentum sclerite setae 2–4 (Little Barrier Is. only)................. M. haunoho Seldon & Leschen, 2011 View in CoL
- Number of submentum sclerite setae 4–6 ( Fig. 8 View FIGURE 8 )........................................................... 9
9(8). Vertex without macrosculpture ( Figs 1 View FIGURE 1 and 9 View FIGURE 9 )............................................................. 10
- Vertex with rugose wrinkles............................................. M. parataiko Seldon & Leschen, 2011 View in CoL
10(9). Prothoracic carina slightly crenulated (Great Barrier Is. only)................... M. aoteanoho Seldon & Leschen, 2011 View in CoL
- Prothoracic carina without crenulations (smooth)............................... M. kokoromatua Seldon et al., 2012 View in CoL
11(8). Mesocoxa with 1–2 setose punctures, metacoxa without setose punctures...................................... 12 - Mesocoxa with 1 setose puncture (or absent), metacoxa with 1 setose puncture.................................. 16
12(11). Prothoracic carina bearing 7–10 setae along each side ( Fig. 11 View FIGURE 11 )............................... M. atrox Britton, 1949 View in CoL
- Prothoracic carina bearing 2–6 setae along each side....................................................... 13
13(12). Submentum sclerite constriction narrow ( Fig. 12F View FIGURE 12 )........................................................ 14
- Submentum sclerite constriction broad.................................................................. 15
14(13). Prothoracic carina bearing 4–6 setae along each side.................................... M. curvidens Broun, 1915 View in CoL
- Prothoracic carina bearing 2–4 setae along each side........................................ M. perexiguus View in CoL sp. n.
15(13). Vertexal groove ( Fig. 9 View FIGURE 9 ) narrow and shallow, broadened laterally (Poor Knights Is. only).................................................................................................. M. ponaiti Seldon & Leschen, 2011 View in CoL
- Vertexal groove narrow and defined along the entire length.................................. M. pluto Britton, 1949 View in CoL
16(11). Prothoracic carina bearing 4–6 setae along each side....................................................... 17
- Prothoracic carina bearing 2–4 setae along each side............................ M. manaia Seldon & Leschen, 2011 View in CoL
17(16). Mesocoxa ( Fig. 2 View FIGURE 2 ) without setose punctures (Three Kings Is. only)........................... M. regulus Britton 1964 View in CoL
- Mesocoxa with setose punctures (Cape Reinga to North Cape)..................... M. tenaki Seldon & Leschen, 2011 View in CoL
18(6). Mentum with setae present ( Fig. 8 View FIGURE 8 )..................................................................... 19
- Mentum without setae............................................................................... 25
19(18). Pronotal disc with asetose punctures................................................... M. florae Britton, 1949 View in CoL
- Pronotal disc without asetose punctures................................................................. 20
20(19). Asetose punctures of elytral striae regularly spaced........................................................ 21
- Asetose punctures of elytral striae irregularly spaced....................................................... 23
21(20). Mesocoxa with 1 setose puncture........................................................... M. temata View in CoL sp. n.
- Mesocoxa with 2 setose punctures..................................................................... 22
22(21). Metacoxa without setose punctures, mesepisternum ( Fig. 2 View FIGURE 2 ) with rugose wrinkles............. M. quoinense Broun, 1912 View in CoL
- Metacoxa with setose punctures, mesepisternum with sparse punctures..................... M. oblongum Broun, 1882 View in CoL
23(20). Intervals 1–4 ( Fig. 1 View FIGURE 1 ) of elytra are indistinct or absent...................................................... 24
- Intervals 1–4 of elytra are flat or weakly convex............................................... M. zonula View in CoL sp. n.
24(23). Asetose punctures of elytral striae are indistinct near suture...................... M. crenaticolle Redtenbacher, 1868 View in CoL
- Asetose punctures of elytral striae 1–4 are long and narrow............................... M. longicolle Broun, 1923 View in CoL
25(18). Ventrites 3–5 with 2 setose punctures each side of midline.................................................. 26
- Ventrites 3–5 with 1 setose puncture each side of midline................................................... 27
26(25). Mesocoxa with 4 setose punctures.................................................... M. hector Britton, 1949 View in CoL
- Mesocoxa with 2 setose punctures....................................................... M. kokoroiho View in CoL sp. n.
27(25). Vertex without microsculpture/macrosculpture............................................................ 28
- Vertex with microsculpture/macrosculpture.............................................................. 34
28(27). Vertexal groove with punctures........................................................................ 29
- Vertexal groove without punctures..................................................................... 31
29(28). Vertexal groove defined by punctures laterally only.......................................... M. undecimus View in CoL sp. n.
- Vertexal groove defined by punctures along the entire length................................................ 30
30(29). Pronotum foveae are deep and broad; prosternum with microsculpture/macrosculpture.......... M. validum Broun, 1923 View in CoL
- Pronotum foveae are shallow and narrow; prosternum without microsculpture/macrosculpture.......... M. papake View in CoL sp. n.
31(28). Pronotal carina with greater than 10 setae along each side...................................... M. argentum View in CoL sp. n.
- Pronotal carina with 7–10 setae along each side........................................................... 32
32(31). Prosternum is concave................................................................ M. teparawhau View in CoL sp. n.
- Prosternum is flat................................................................................... 33
33(32). Mesepisternum micropunctate.......................................................... M. ngaitahuhu View in CoL sp. n.
- Mesepisternum with rugose wrinkles.................................................... M. ngaiatonga View in CoL sp. n.
34(27). Metacoxa with 3 setose punctures...................................................................... 35
- Metacoxa with 2 or less setose punctures................................................................ 38
35(34). Submentum sclerite constriction narrow................................................................. 36
- Submentum sclerite constriction broad.................................................................. 37
36(35). Labrum ( Fig. 9 View FIGURE 9 ) lobate with anterior edge distinctly emarginated............................... M. dunnorum View in CoL sp. n.
- Labrum rectangular with anterior edge outwardly curved and slightly emarginated................... M. tewhara View in CoL sp. n.
37(35). Mesepisternum with punctures............................................................ M. godzilla View in CoL sp. n.
- Mesepisternum without punctures.......................................................... M. teroroa View in CoL sp. n.
38(34). Pronotal carina with 7–10 setae along each side........................................................... 39
- Pronotal carina with 11+ setae along each side............................................................ 45
39(38). Submentum sclerite constriction narrow ( Fig. 12F View FIGURE 12 )......................................... M. dux Britton, 1949 View in CoL
- Submentum sclerite constriction broad.................................................................. 40
40(39). Vertexal groove shallow and broad, without punctures........................................ M. xylanthrax View in CoL sp. n.
- Vertexal groove with punctures........................................................................ 41
41(40). Vertexal groove with punctures distributed along the entire length............................................ 42
- Vertexal groove punctures distributed laterally only........................................................ 43
42(41). Submentum sclerite constriction narrow............................................. M. simplex Castelnau, 1867 View in CoL
- Submentum sclerite constriction broad................................................ M. scitulum Broun, 1894 View in CoL 43(41). Proepisternum ( Fig. 2 View FIGURE 2 ) micropunctate....................................................... M. atuanui View in CoL sp. n.
- Proepisternum without microsculpture.................................................................. 44
44(43). Vertex with fine lines forming an isodiametric pattern........................................ M. rusticulus View in CoL sp. n.
- Vertex with a few scattered punctures, surface otherwise smooth............................. M. genesispotini View in CoL sp. n.
45(38). Elytral intervals without microsculpture................................................................. 46
- Elytral interval with microsculpture lineate.............................................................. 47
46(45). Anterior metaventrite process ( Fig. 2 View FIGURE 2 ) with the carina width broad the entire length.................... M. kipjac View in CoL sp. n.
- Anterior metaventrite process with the carina width narrow the entire length.................... M. wharekahika View in CoL sp. n.
47(46). Vertexal groove without punctures......................................................... M. jacinda sp. n.
- Vertexal groove with punctures........................................................................ 48
48(47). Prosternum with transverse lines............................................................. M. mohi View in CoL sp. n.
- Prosternum without microsculpture..................................................................... 49
49(48). Elytral interval 1 ( Fig. 1 View FIGURE 1 ) extended basally to scutellum..................................................... 50
- Elytral interval 1 extended to basal margin only....................................... M. spiniferum Broun, 1880
50(49). Mesepisternum with sparse punctures................................................ M. oconnori Broun, 1912 View in CoL
- Mesepisternum with numerous punctures................................................................ 51
51(50). Elytral intervals 7–9 strongly convex, 7 th strial setal pattern with 3–4 setose punctures in posterior ½....... M. tuhoe View in CoL sp. n.
- Elytral intervals 5–9 moderately convex, 7 th strial setal pattern with 5–7 setose punctures in posterior ½................................................................................................... M. yconomus View in CoL sp. n.
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