Last metasomal tergum
entirely pale or with pale colored triangle (Fig.
4 Alae short, posterior apices not surpassing fourth abdominal tergum
Generally for species recognition, males are required because features of the genitalia and the right medial lobe of the 7th abdominal tergum
(pseudostrigil) are diagnostic.
Dietrich and Deitz (1993) listed as synapomorphies for Cicadellidae: the mesonotum exposed posteriorly, the labium not reaching the metathoracic coxae, m-cul crossvein present, metatibia with distinct long setae, tarsomere I of hind leg without cucullate setae, stemum IX and subgenital plate not fused, and abdominal tergum
with divided acanthae; all of which are homoplastic characters in their analysis.
Furthermore, Synophrus and Saphonecrus appear to share several apomorphies with Synergus, notably in the structure of the petiole and in the fusion of the third and fourth abdominal tergum
in the male, and Rhoophilus seems to be the sister group of Synergus + Synophrus + Saphonecrus (Ronquist, unpubl.
2 Fourth abdominal tergum
with a rounded laminate crest P.
In comparison, in such genera as Cryptorhopalum, Orphinus, and Thaumaglossa, brushes of the hastisetae are inserted on each side of a membrane behind the tergum
(Beal 1991; Kiselyova & McHugh 2006).
Leptofoenus is characterized by presenting the eighth gastral tergum
reduced, pronotal lateral surfaces with finely striate regions and the length of basitarsus of all legs twice as long as second tarsomere (Engel, 2009).
10S); length of first metasomal tergum
about twice as long as apical width (as in fig.
Lateral margins of pronotum completely dentate except humeral angles, dentine on posterior portion slightly less prominent, anterior angles acutely produced but not extending beyond eyes, humeral angles quite acute; length of pronotum 4.0 mm, width 10.0 mm; scutellum reaching to fifth abdominal tergum
, with u-shaped apical lobe, subacute at apex; length of scutellum 8.6 mm, and width at base 5.8 mm; metathoracic scent gland ostioles (Fig.
Mostly dark brown; face, front, vertex, temples and occiput dark brown; gena brown; clypeus and mandibles dark yellow (Figure 1e); labrum, labial and maxilar palp pale; antenna with scape and pedicel yellow and flagellomeres brown; mesoscutum dark brown; wings hyaline; tergum
I yellowish; remaining terga light brown; ovipositor sheaths brown; foreleg and midleg from coxae to 3rd tarsomeres yellow, 4th and 5th tarsomeres yellowish brown; hindleg yellow from coxa to approximately 2/3 of tibia, the remaining 1/3 of tibia to the 5th tarsomere yellowish brown.