Ninidae

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Ninidae
Systematics
Class : Insects (Insecta)
Order : Schnabelkerfe (Hemiptera)
Subordination : Bed bugs (heteroptera)
Partial order : Pentatomomorpha
Superfamily : Lygaeoidea
Family : Ninidae
Scientific name
Ninidae
Barber , 1956

The Ninidae are a family of bugs (Heteroptera) within the suborder Pentatomomorpha . It counted until before the revision of the Pentatomomorpha with emphasis on the Lygaeoidea by TJ Henry in 1997 as a tribe of the Cyminae (now also in the family: Cymidae ) within the ground bugs (Lygaeidae). It comprises 5 genera and 13 species.

features

The small and delicately built bugs reach a body length of three to four millimeters. They have an elongated egg-shaped body that is structured in a point-like manner. The head is angled sharply downwards. The four-part antennae are turned in above the stalked compound eyes (supericorn). Its base has receded and the first antenna segment is small. The labium is also four-part. There are point eyes ( Ocelli ) developed, which are fairly close to each other. The pronotum is neither constricted nor furrowed. The scutellum has a double apical point . The membranes of the hemielytres have receded. The hind wings have a hamus (a hook-shaped transverse artery in the disc cell, derived from the media). The spiracles are dorsal on the second to sixth segment on the abdomen , and ventral on the seventh . The nymphs have their scent gland openings dorsally between the third to sixth tergum on the abdomen, whereby they are receded between the last two segments mentioned.

Occurrence

The genus Cymoninus is common in tropical countries around the globe. Neoninus is restricted to the neotropical fauna region . Ninomimus lives in Russia and Japan . The genus Ninus is native to the tropical areas of Africa , India and Southeast Asia, as well as Australia , Melanesia and Micronesia . Paraninus has only one species that can be found in northern South America .

Way of life

The family's way of life has been poorly researched. The animals live on plants and suckle on seeds. They are mainly found on the sour grass family (Cyperaceae) and rush family (Juncaceae). Ninus similis has been found in South Africa on cornices ( Scirpus ) and sedge grasses ( Cyperus ), Cymoninus Sechellensis in Fiji on fruit heads and ferns, Ninus insignis on sugar cane ( Saccharum officinarum ) and Fimbristylis, a genus of the sour grass family.

Taxonomy and systematics

Barber described the group in 1956 as a tribe, Ninini, the Cyminae of the ground bugs (Lygaeidae) and put the genera Cymoninus , Neoninus , Ninomimus and Ninus to her. In 1957 Scudder added the genus Paraninus, which he had just described . The current classification of the group was created in 1997 after a revision of the Pentatomomorpha with a focus on the Lygaeoidea by Henry. He reclassified the tribes and placed them in the family rank. He regards the taxon Malcidae + Colobathristidae + Stelzenwanzen as a sister group of the family and justifies this with the stalked compound eyes, the position of the antennae deflections on the head and the apical double-pointed label.

The family includes the following genera:

supporting documents

Individual evidence

  1. ^ A b T. J. Henry: Phylogenetic analysis of family groups within the infraorder Pentatomomorpha (Hemiptera: Heteroptera), with emphasis on the Lygaeoidea. In: Annals of the Entomological Society of America Vol. 90, No. 3, 1997, pp. 275-301.
  2. ↑ a b c d e f Family Ninidae. Australian Biological Resources Study. Australian Faunal Directory, accessed April 8, 2014 .

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