Hyocephalidae
The Hyocephalidae are a family of bugs ( Heteroptera) in the partial order Pentatomomorpha. Of them, 3 species in 2 genera genera are known.
Features
The relatively large bugs reach body lengths of up to 15 millimeters. They are reddish brown or black and have a moderately elongated, parallelrandigen body which is flattened dorsally. They resemble edge bugs ( Coreidae ) of the subfamily Pseudophloeinae and some chinch bugs ( Lygaidae ).
The head is tapered very elongated and strong. Its surface is covered with tubercles. The simple eyes ( ocelli ) are very small and are located near the rear edge of the compound eyes. The face plate ( clypeus ) is increased and pressed in the center. The Bucculae are large, elongated and limits forward against one another. They are rear extended to the front edge of the compound eyes. The basal cells of the membrane of the fore wings are formed by the cross- vein, which connects the four primary longitudinal veins. The fore wings also have more distal veins. The wire that connects the media loader and you Cubitalader the corium, is missing. The scent glands opening on the metathorax has a bristle- like appendage. The rails ( tibiae ) are furrowed. The base of the ventral abdomen has an egg-shaped, provided with pores member on each side, the many types of Rhyparochromidae is comparable to that provided by pores in the range of sternum. The Trichobothria on the abdomen are located on the third and fourth sternum Mesal, on the fifth and sixth lateral and arranged grouped. All spiracles are ventral. The nymphs have two pairs of dorsal scent gland openings on the abdomen between the fourth or fifth Tergum. The ovipositor of the female is fringed. The pear-shaped part of the spermatheca lack of clear pumpenflanschförmige attachments. The elongated eggs have three mikropylare extensions.
Dissemination
The animals are distributed only in Australia.
Way of life
Little is known about the lifestyle of bugs. They live very hidden under stones in sandy, rocky areas. They feed on the ripe seeds of acacia (Acacia ) and eucalyptus (Eucalyptus ).
Taxonomy and systematics
The taxon was established in 1906 as a subfamily assigned by Bergenroth the edge bugs and even downgraded in 1912 by him on Tribusebene. In the same year Reuter brought the group into the family rank.
The following genera and species are attributed to the family:
- Genus Hyocephalus Hyocephalus aprugnus Bergenroth, 1906
- Maevius indecorus Stål, 1874
- Maevius luridus Brailovsky, 2002