Notomicrus meizon species group
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https://dx.doi.org/10.3897/zookeys.1025.60442 |
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publication LSID |
lsid:zoobank.org:pub:C9D007A0-2385-4104-816C-F9177473ABBC |
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persistent identifier |
https://treatment.plazi.org/id/BADEB464-181C-59D2-ADC6-E2294A07D016 |
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Notomicrus meizon species group |
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3. Notomicrus meizon species group
Diagnosis.
Non-teneral specimens of this group tend to have the following combination of characters: (1) triangular pigmented area medially on the base of the elytra (Fig. 1g-i View Figure 1 ), similar to N. josiahi , but not as prominent and not always discernible in some populations or in teneral specimens; (2) dense, fine punctures bearing short setae on the posterior half of the elytra and sometimes extending far anteriorly (not as coarse as in members of the Notomicrus traili group); (3) microreticulation variably impressed, consisting of fine mesh-like reticulation; often iridescent; (4) posterior lobes of noterid platform with squared or rounded angles (Fig. 4e View Figure 4 ); if posterior angles of noterid platform more acute (Fig. 4f, g View Figure 4 ), protibia presents robust seta of outer margin approximately at half-length of outer margin, distance between robust seta and dorsoapical angle subequal to distance between robust seta and first seta from protibial insertion (Fig. 2d View Figure 2 ).
Composition.
N. malkini Young, 1978; N. meizon Guimarães & Ferreira-Jr, 2019.
Identification resources.
Young (1978); Guimarães and Ferreira-Jr (2019).
Remarks.
The Notomicrus meizon group is sometimes difficult to discern from the Notomicrus traili group, as the differences amongst diagnostic characters can be subtle. The darkened basal area of the elytra in the Notomicrus meizon group is helpful, but investigators may find great difficulty in diagnosing teneral members of this group, which often lack the pigmented triangular area on the elytra. It is important to note that this darkened area is truly pigmented, not just darker in appearance due to the folding of the wings under the elytra as often happens in lighter colored species (as in Fig. 1f, j, k View Figure 1 ). Fortunately, males of most individual species of the Notomicrus meizon group are easy to identify by their aedeagi in combination with other characters, such as tarsal claws. The male median lobes of the Notomicrus meizon group species are usually (but not always) very irregularly shaped (for example, see Young 1978 and Guimarães and Ferreira-Jr 2019). The aedeagus of most species of the Notomicrus traili group appear similar to Fig. 8 View Figures 8, 9 , with a small club at apex, often hooked to the left (see Young 1978; Manuel 2015; Baca and Short 2018). Additionally, males of Notomicrus meizon species often present notable unequal lengths between the anterior and posterior protarsal claws. These are usually subequal in length in the Notomicrus traili group.
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