Cleotychini Emeljanov, 1997

Constant, Jérôme, Semeraro, Linda & Moir, Melinda L., 2022, Australian Cleotychini planthoppers: review of the genus Cleotyche Emeljanov, 1997 with three new species (Hemiptera: Fulgoromorpha: Dictyopharidae), European Journal of Taxonomy 836, pp. 66-95 : 68-69

Tribe Cleotychini Emeljanov, 1997

Diagnosis

Habitus reminiscent of Caliscelidae ( Hemiptera : Fulgoromorpha), with pyriform body shape and the anterior part of body slightly compressed. Head with well delimited trigons (triangular area delimited by carinae at anterior angles of vertex). Frons approximately rectangular, parallel-sided, much longer than wide. Vertex subquadrate, longer than wide. Apical segment of the labium half as long as subapical segment. Pronotum elongate (slightly shorter than vertex along mid-line), dorsally tricarinate, with a single lateral keel on each side and posterior margin nearly straight. Mesonotum smooth, carinae nearly obsolete. Tegmina strongly reduced, without carina; clavus not defined. Tegulae absent. Dorsum of abdomen without carinae. Procoxae with outer carina extended into triangular apical lobe. Profemora and protibiae flattened and dilated, often foliate. Metatibiae with two lateral spines, one near tibiofemoral joint and one in distal half of tibia. Apex of metatibiae with 6 teeth separated in two groups: 2 teeth on internal side and 4 on external side. First and second segments of metatarsus with platellae instead of spines, except large lateral common teeth without setae. Arolium with one pair of chetoid sensilla. Claws with 3 setae. Sternite VIII of males fused with pygofer. Pygofer with broad base, narrowed backwards in ventral view. Gonostyli without dorsal teeth (such as in Orthopagus Uhler, 1897 species for example) but with dorsal lobe bearing a dorsolateral hook. Connective fused with lower wall of pygofer, largely connected with base of gonostyli. Lateral lobe of gonoplacs (third valvae of ovipositor) without appendix; medial lobe of gonapophyses VIII (first valvae of ovipositor) with two nervures; lateral lobes with bidentate apex.

Remark

The tribe Cleotychini is here conservatively retained within the family Dictyopharidae until more detailed phylogenetic studies confirm or refute the familial placement (see also discussion below).