Devolana DeLongı 1967

Pinedo-Escatel, José Guadalupe Aguilar-Pérez ı Jorge Adilson & Valdez-Quezada, Brianda Catalina, 2019, Three new Mexican species of the endemic Athysanini leafhopper genus Devolana DeLong (Hemiptera: Cicadellidae) from the tropical dry forest, Journal of Natural History 53 (33), pp. 2039-2056 : 2039-2056

Devolana DeLongı 1967

Devolana DeLongı 1967: 22 .

Type species

Devolana hemicycla DeLongı 1967 ı p. 23 ı original description. Distribution

Endemic to Mexicoı reported from the following states: Guerrero (Iguala de la Independencia and Zincauro) and Jalisco (Sierra de Tuxcacuesco)ı Figure 4 .

Diagnosis

Devolana is easily distinguished from other similar genera of Athysanini by the following combination of characteristics: (1) head very short with anterior and posterior margins of crown parallel; (2) face with arcuate black line extended from midline laterad through ocelli and along border of frontoclypeus; (3) pronotum with pair of large black spots; (4) pygofer without processes; and (5) aedeagus with a set of apical processes.

Morphology

Moderately robust leafhoppers with overall appearance yellowish with black spots on crown and pronotum. Crown roundedı paralleled to posterior margin. Transition of crown to face angledı shagreen. Ocellocular area parallel and wide. Ocelli slightly below margin of headı distance to adjacent eye approximately 2x ocellar diameter. Frontoclypeus wideı lateral frontal sutures reaching ocellusı fine setae laterad frontal suture. Anteclypeus widening apicallyı apex curved slightly surpassing natural curve of genae. Lorum subequal than anteclypeus near base. Genae incised laterad. Pronotum weakly produced mediallyı laterad margins carinateı yellowish with a symmetrical pair of large black spots and a paired diffuse palebrown line between them. Scutellum broad. Forewing macropterousı translucent with black-brown colour on vein-scheme or yellowish pigmentation near the base of clavusı appendix restricted to anal marginı apex roundedı apical and anteapical cells largeı Cs–Pcu crossvein absentı Pcu–A1 crossvein only presented in D. tuxcacuensis . Front femur AM1 near mid-height of apexı long; IC longı thin; row AV small. Front tibia dorsal macrosetal formula (AD+PD) 1 + 4ı PV small stout setae. Hind femur macrosetal formula 2 + 2 + 1.

Pygofer broadı shortı square or pointedı without processesı long and small stout macrosetae near apexı basolateral cleft present. Segment tenth smallı broadı wellsclerotised with membranous tip. Valve and subgenital plates free articulated to pygofer. Valve rounded and slightly produced. Subgenital plate trianguları uniseriate laterad with robust and fine setae. Connective Y-shapedı stem short. Style slenderı basal and preapical lobe weakly developed with setae on posterad marginı apophysis short and curved mesadı apex truncate. Aedeagus curved dorsadı aedeagal shaft with lateral flanges devolved or notı two or three pairs of apical processes. Aedeagal base without processes. Gonoduct sclerotised. Gonophore subapical on ventral surface.

Remarks

DeLong (1967) compared this taxon to Exitianus and Spinulana ı which differ by combinations of genital structures and external features. Exitianus was included in tribe Chiasmini by Zahniser and Dietrich (2013); members of this tribe have a tapering or parallel-sided anteclypeus and an aedeagus hinged at the base. Spinulana and Devolana ı both of which are currently placed in Athysanini differ in general body colour and in the structure of the male pygofer and aedeagus.

Figures

Figure 4. Map of distribution of the genus Devolana in Mexico.