Semiotus ligneus explained

Semiotus ligneus is a species of click beetle from Central and South America.^[1]

It grows to a total length of 15mm44mm,^[1] and is 3.7–4.2 times as long as it is wide. The larvae are 27mm long. It closely resembles seed sheaths, which provides it with effective camouflage.^[2]

S. ligneus is the most frequently collected species in the genus Semiotus.^[3] Its closest relative is Semiotus serraticornis.^[3]

Notes and References

1. Maria Helena Parreira & Sônia A. Casari . 2004 . Morphology of three Brazilian species of Semiotus (Coleoptera, Elateridae, Semiotinae) . . Zoology . 94 . 3 . 285–294 . 10.1590/S0073-47212004000300011. free .
2. Book: Mary Blair Beebe, C. William Beebe . amp. 1910 . Our Search for a Wilderness. An account of two ornithological expeditions to Venezuela and to British Guiana . . A gold mine in the wilderness . 165–213 . https://www.biodiversitylibrary.org/page/21799779#page/218/mode/1up.
3. Samuel A. Wells . 2007 . Revision of the Neotropical click beetle genus Semiotus Eschscholtz (Coleoptera: Elateridae) . . . 514 . 1–114 . 10.5962/p.214393 .