Genus Ellipoma Emeljanov, 2008

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• Ellipoma 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] [314].

  Type species:

   Ellipoma nodulosa Emeljanov, 2008 by original designation.

Distribution

States

New South Wales

IBRA and IMCRA regions

IBRA

NSW: Sydney Basin (SB)

Diagnosis

Body strong, compact, moderately brachypterous; elytra not concealing only very apex of abdomen, folded rather flatly. Head short, coryphe about as long as wide, all its margins keel-shaped, anterior margin slightly convex, posterior one slightly concave, lateral margins converging anteriorly, surface of coryphe slightly concave but with 2 gently sloping longitudinal prominences in anterior half, median carina developed only behind these prominences. Metope about 3 times as long as wide at clypeus; its lateral margins sharp, straight, slightly converging toward apex of head; intermediate carinae sharp, absent below antennae; median carina sharp along entire length. Apical callus small, slightly longitudinal; intermediate carinae running more closely to lateral carinae than to median one, lancet-like converging to apical callus. Border of metope with clypeus rather strongly concave, indistinct. Postclypeus about half as long as metope, with sharp carinae; lateral carinae convex, approximate toward anteclypeus. Anteclypeus slightly gibbous in lateral view, without ledge at apex, with sharp median carina; lateral carinae sharp, present only in basal half, sharply terminating before median carina. Rostrum protruding slightly beyond hind coxae, its ultimate segment nearly 0.67 times as long as penultimate one, lateral ocelli well developed. Antennae small, 2nd segment rounded. Pronotum wide, much wider than head. Lateral carinae of disc diverging backward and vanishing when curved outwards. Posterior margin gently obtuse-angularly concave, except for weakly convex lateral parts. Lateral and collateral carinae well-defined, pectoral carina absent. Scutellum wide, transverse, posterior margin protruding at sharper obtuse angle, apex of scutellum slightly attenuate. Lateral carinae of disc arcuately passing in each other anteriorly; all 3 carinae, including median one, sharp. Fore wing thickened but with distinct system of keel-shaped veins, rather wide and flat, widely rounded posteriorly. Tegulae developed. Basal part of elytra (opposite mesonotum) with smooth precostal area. Vein ScR making first branching slightly behind basal third of remigium, pterostigma absent, only anterior branch of ScR bufurcating before margin of wing. RP bimodal; media with 2 anterior and 3 posterior branches; base of posterior branch shifted far backward in such way that crossvein тсuа taking longitudinal position and looking like anterior branch of СuА. СuА, as usually, bimodal, but both branches at first curved obliquely backward at base and only then taking longitudinal direction. Nodal cross-vein rm present. Claval veins joined in basal third of clavus, united vein running into posterior margin of clavus near its apex. Stem of M with 2 nodule-shaped thickenings: one in middle part and other before first branching; less sharp nodule visible near base of MA; anterior cubitus with similar nodule in middle part of stem slightly more basally of nodule on media. Apex of abdomen in only available specimen (♂) deflected upward and squeezed between diverging margins of elytra. Legs strong, with widened fore and middle femora and tibiae; fore coxa simple, without angular prominence. Ventral (posterior) widening of fore and middle femora terminated as sharp ledge apically. Hind tibia with 5 lateral teeth (including knee tooth). Apex of tibia with 7 teeth: 5 + 2. 1st and 2nd segments of hind tarsus with 12 and 14 teeth, respectively, among these, 1st and 2nd teeth outer and last tooth inner free of platellae. 2nd segment deeply emarginate at apex. (Emeljanov 2008)

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] [314–315]

History of changes