Murmidiidae, Jacquelin du Val, 1858

Jałoszyński, Paweł & Ślipiński, Adam, 2022, Revision of the family Murmidiidae (Coleoptera: Coccinelloidea), Zootaxa 5109 (1), pp. 1-102 : 7

publication ID

https://doi.org/ 10.11646/zootaxa.5109.1.1

publication LSID

lsid:zoobank.org:pub:7B6C0651-0935-4C77-B157-3ABF53E3AD81

DOI

https://doi.org/10.5281/zenodo.10546950

persistent identifier

https://treatment.plazi.org/id/038B1141-9C4B-702A-D4D8-FF06EA18FB04

treatment provided by

Plazi

scientific name

Murmidiidae
status

 

Family Murmidiidae View in CoL

Murmidiides Jaquelin du Val, 1857: 227.

Murmidiidae View in CoL : LeConte, 1861: 78; Böving & Craighead, 1931: 38.

Mychocerinae Sharp, 1895: 494. Invalid, based on misidentified type genus Mychocerus sensu Leconte, 1869.

Diagnosis. BL 1.0– 1.7 mm; usually broadly oval but sometimes elongate and parallel-sided to almost circular; dorsum flat to strongly convex, glabrous to distinctly setose. Head deeply retracted into prothorax, with distinct frontoclypeal groove (= ‘suture’) and vertexal ridge. Antenna short, 8–10-segmented; club always 1-segmented and usually cylindrical, rarely flattened; antennal foramen not visible dorsally, but antennal scape fully exposed. Terminal maxillary and labial palpomeres non-aciculate, narrower than penultimate segments and gradually tapering to rounded apex. Prothorax transverse, with dorsal or ventral antennal cavities in anterior corners; lateral carina complete and smooth; prosternum in front of procoxae several times as long as procoxal longitudinal diameter, forming broad plate protecting head in repose; prosternal process variable but broad, not extending beyond procoxae; procoxal cavities externally and internally open. Elytron smooth, with irregular punctures or rarely with variously distinct rows of punctures. Mesocoxae very broadly separated; their cavities open to mesepimeron. Metaventral and abdominal postcoxal lines arcuate; tarsal formula 4-4-4, tarsomeres simple; empodium absent, tarsal claws simple, weakly curved and subequal in length to 1/3 of terminal tarsomere. Abdomen with 5 freely articulated ventrites, terminal ventrite crenulate. Aedeagus short; penis tubular, tegmen sheath-like, usually without distinct parameres, rarely with articulated parameres. Female terminalia with large, elongate and subtriangular gonocoxites, lacking gonostyli ( Fig. 193 View FIGURES 191–197 ).

Remarks. Among the families of Coccinelloidea and the remaining Coleoptera , Murmidiidae form a very distinctive group due to the peculiar 8–10 segmented antennae with a large 1-segmented club received in the anterior rather than entirely ventral orientation by prothoracic cavities, combined with simple 4-segmented tarsi, the crenulate posterior edge of the terminal abdominal ventrite, and slender but not aciculate terminal maxillary and labial palpomeres.

Composition and distribution. Worldwide, but mostly in subtropical and tropical regions; the family currently includes thirty-four extant species classified in four genera.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Murmidiidae

Loc

Murmidiidae

Jałoszyński, Paweł & Ślipiński, Adam 2022
2022
Loc

Murmidiidae

Boving, A. G. & Craighead, F. C. 1931: 38
LeConte, J. L. 1861: 78
1861
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