LANGURIIDAE


Author: John F. Lawrence, 2001.


Classification

Suborder Polyphaga, Series Cucujiformia, Superfamily Cucujoidea.


Description

Antenae with 11 segments and a 3 to 5 club. Antennal insertions exposed or concealed. Visible portion of procoxa transversae to globular with the trochantin concealed. Procoxal cavity externally open to closed and internally open to closed. Mesocoxae separated by less than 0.4 X coxal width to more than 1 coxal width, with mesocoxal cavity laterally closed. Tarsal formula 5-5-5 or 5-5-5 but tarsomere 4 reduced and concealed at base of lobe on 3 (pseudotetramerous). Number of ventrites 5 without ventrites connate. Body length 1.5-10 mm. Oblong or elliptical to elongate and parallel-sided, glabrous or pubescent. Most Languriinae are larger, elongate, colorful, glabrous, with long legs and 4-segmented antennal club. Other subfamilies include smaller, usually pubescent forms formerly included in Cryptophagidae. Tarsal lobes absent or present on 3 or 1-3.


Quick identification

Languriidae are diverse in form and relatively common in tropical areas. Typical languriids (third and fourth figures) are distinctive, brightly colored, elongate beetles which are familiar to most entomologists, but other groups (first 2 and last 2 figures) include smaller, often pubescent beetles likely to be confused with cryptophagids.


Genera occurring in Costa Rica

Xenoscelinae: Hapalips, Loberopsyllus, Loberus, Othniocryptus, Pharaxonotha, Telmatoscius, Truquiella.
Languriinae: Acropteroxys, Camptocarpus, Crotchia, Dasydactylus, Ectrapezidera, Goniolanguria, Languria, Langurites, Malleolanguria, Meristobelus, Nomotus, Ortholanguria, Platoberus, Teretilanguria, Thallisella, Trapezidera.
Cryptophilinae: Crowsonguptus, Cryptophilus.
Toraminae: Empocryptus, Toramus.





© CSIRO Emtomology, 1999
Xenoscelinae

© CSIRO Emtomology, 1999
Xenoscelinae

© CSIRO Emtomology, 1999
Languriinae

© CSIRO Emtomology, 1999
Languriinae

© CSIRO Emtomology, 1999
Cryptophilinae

© CSIRO Emtomology, 1999
Toraminae


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