Genus Anasta Emeljanov, 2008

Museums

Regional Maps

• Anasta Emeljanov, A.F. 2008. New Genera and New Species of the Family Dictyopharidae (Homoptera), with Notes on the Systematics of the Subfamily Dictyopharinae. Entomological Review (English translation of Entomologicheskoe Obozrenie) 88(3): 296-328 [English translation of Entomologicheskoe Obozrenie, 2008, 87(2): 360–396] [305].

  Type species:

   Dictyophara prognatha Distant, 1906 by original designation.

Introduction

This genus was revised by Song & Liang (2013) who recognised six species, two of which are recorded for Australia, the others being in Western Province of Papua New Guinea, Timor and Fiji. Song & Liang (2013) also provided a key for the separation of the species.

Distribution

States

Northern Territory, Queensland

IBRA and IMCRA regions

IBRA

NT, Qld: Cape York Peninsula (CYP), Pine Creek (PCK)

Diagnosis

Body slender; head elongate, pointed, with apex slightly deflected upward. Coryphe oblong triangular, projecting forward beyond eyes at distance equal to their half length; lateral carinae with bend depression (constriction), thicker before constriction, median carina very fine after constriction. Lateral sides of process visible in dorsal view at sides of coryphe. Coryphe concavely arcuate in lateral view, curved slightly more strongly in posterior part. Metope in lateral view straight in basal half, gently convex in apical half; bend becoming stronger toward apex of head. Metope parallel-sided from clypeus to upper margins of eyes and slightly above, then cuneiformly narrowed toward apex, without prominences opposite bases of antennae. Intermediate carinae near clypeus equally distant from each other and from sides of metope, sharp along entire length, with weaker median carina running along bottom of groove between them. Lateral carinae slightly diverging, then also smoothly converging; lateral areas in front of eyes bent laterad. In lateral view, lateral carinae diverging from intermediate carinae in basal third of metope, then running in parallel. Apical callus small, vertical; lateral carinae of metope approaching to coryphe at distance equal to length of apical callus. Clypeal border of metope gently concave. Antennae small, 2nd segment globose. Postocular swellings small, distinct, continuing toward antenna as short vanishing carina. Rostrum short, only reaching apices of hind coxae. Ultimate segment 1.5 times shorter than penultimate one. Posterior margin of coryphe in form of not sharp keel. Pronotum rather long; disc rather weakly projecting forward, anterior margin arcuate, median carina well-developed, lateral carinae sharp but weakened in posterior part, terminating at distance from posterior margin equal to 1/3 of their length. Lateral carinae of pronotum entirely developed, collateral carina stronger, pectoral carina absent. Posterior margin of pronotum gently obtuseangularly concave. Mesoscutum with 3 distinct carinae; lateral carinae parallel in posterior part, slightly curved medially at anterior margin. Tegulae without carina. Fore wings elongate, corium widened distally, membrane semi-elliptically rounded. Stem of ScRM about half as long as basal cell. Stigma narrow, with 1 or 2 cross-veins. Vein ScR branching before stigma, claval veins joined in basal 2/5 of clavus. Fold of fore wing crossing first intermedial cross-vein. Hind tibia with 4 lateral and 7 apical teeth, 1st and 2nd segments of hind tarsus with more than 20 teeth (20–22) (Emeljanov 2008).

Externally, Anasta is very similar to Dictyophara s. str. Germar, 1833 in many morphological characters, but a long conjunct stem of Sc+R and M in the forewings and different female genitalia in Anasta assign it to the tribe Hastini. Geographically, Anasta is distributed in the Australasian region, while Dictyophara is restricted to the Palaearctic region. Anasta can be distinguished from the Australasian genus Articrius Emeljanov by the cephalic process being relatively narrow, gradually tapering to the apex and the lateral carinae of the mesonotum nearly parallel and not bifurcated (Song & Liang 2013).

Diagnosis References

Emeljanov, A.F. 2008. New Genera and New Species of the Family Dictyopharidae (Homoptera), with Notes on the Systematics of the Subfamily Dictyopharinae. Entomological Review (English translation of Entomologicheskoe Obozrenie) 88(3): 296-328 [English translation of Entomologicheskoe Obozrenie, 2008, 87(2): 360–396] [305–306]

Song, Z.S. & Liang, A.P. 2013. Review of the genus Anasta Emeljanov (Hemiptera: Dictyopharidae: Hastini) from the Australasian region. Zootaxa 3741(4): 551–568 [552–554]

General References

Song, Z.S. & Liang, A.P. 2013. Review of the genus Anasta Emeljanov (Hemiptera: Dictyopharidae: Hastini) from the Australasian region. Zootaxa 3741(4): 551–568

History of changes