Laccornis

Gozis, 1914

Species Guides

3

Laccornis is a of predaceous diving beetles (Dytiscidae) established by Gozis in 1914. The genus contains approximately 10 described distributed primarily in the Holarctic region. Species in this genus are aquatic found in freshwater , with larvae and both being predatory. The genus is classified within the tribe Laccornini of the Hydroporinae.

Laccornis latens by (c) Matthew Pintar, some rights reserved (CC BY), uploaded by Matthew Pintar. Used under a CC-BY license.

Pronunciation

How to pronounce Laccornis: //læˈkɔːrnɪs//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Habitat

Freshwater aquatic environments. L. oblongus has been documented from postglacial relict including peatlands and moorlands, such as the Murnauer Moos nature reserve in Bavaria. in this occur in water bodies where they co-occur with diverse diving .

Distribution

Holarctic distribution. Documented from northern Europe including Denmark, Norway, and Sweden. L. oblongus represents the most south-westerly known record in Germany from Bavaria. North American include L. conoideus, L. deltoides, L. difformis, L. etnieri, L. latens, L. pacificus, and L. schusteri.

Diet

Predatory. Both larvae and are , feeding on other aquatic organisms.

Life Cycle

Holometabolous development with described larval stages. Larvae are aquatic and predatory, undergoing development in water before and as .

Ecological Role

in freshwater aquatic . L. oblongus has been observed syntopic with at least 20 other diving , indicating integration into diverse aquatic beetle .

Similar Taxa

  • Other Hydroporinae generaLaccornis may be confused with other small to medium-sized diving beetles in the Hydroporinae; identification to level requires examination of male genitalia including the lobe of the and paramere structure.

More Details

Species diversity

The contains 10 described : L. conoideus, L. deltoides, L. difformis, L. etnieri, L. kocae, L. latens, L. nemorosus, L. oblongus, L. pacificus, and L. schusteri. Species are distributed across North America and Eurasia.

Sources and further reading