Pachybrachis jacobi, 2018

Barney, Robert J., 2018, Definition and Revision of the Atomarius Species-Group of North American Pachybrachis Chevrolat (Coleoptera: Chrysomelidae: Cryptocephalinae), Including Descriptions of Nine New Species, The Coleopterists Bulletin 72 (1), pp. 9-74 : 12

publication ID

https://doi.org/ 10.1649/0010-065X-72.1.9

publication LSID

urn:lsid:zoobank.org:pub:69C3E6FD-3835-4B7D-BA21-76DE061F8D7D

persistent identifier

https://treatment.plazi.org/id/50818EF9-C6E2-426B-A154-DBBF0BE1BCED

taxon LSID

lsid:zoobank.org:act:50818EF9-C6E2-426B-A154-DBBF0BE1BCED

treatment provided by

Diego

scientific name

Pachybrachis jacobi
status

 

7. Median lobe very narrowed in lateral view, DEO deflexed at near 30° angle, without denticles or beards ( Fig. 6 View Fig ) ..................... ........... 6. P. jacobi Barney , new species

7 ʹ. Median lobe not narrowed in lateral view, DEO deflexed at>45° angle from vertical, usually with denticles and beards ................................................ 8

8. Subplanar surface of median lobe without paired apico-marginal denticles or pointed protuberances ( Figs. 8–12 View Fig View Fig View Fig View Fig View Fig ) ................. 9

8 ʹ. Subplanar surface of median lobe with paired apico-marginal denticles or pointed protuberances ( Figs. 7 View Fig , 13–21 View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig ) .............. 13

9. Body length of males <2.0 mm .......... 10

9 ʹ. Body length of males>2.0 mm ........ 11

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