Ceresinoidea zacki sp. nov.

Figs 5-11, 12-17

Diagnosis.

Pronotum elevated, stepwise convex just behind suprahumeral spines in lateral view (Fig. 5, 9), posteriorly strongly tectiform and compressed laterally, in anterior view with 3 irregular vertical stripes (Fig. 6, 8).

Description.

Measurements (mm). Length with forewing in repose ♀ 8.6, ♂ 6.4; width across suprahumeral spines ♀ 3.7, ♂ 3.0; height in anterior view ♀ 3.0, ♂ 2.7. Pronotum. Dorsal margin abruptly elevated behind suprahumeral spines, convex in stepwise fashion (Figs 5, 9); suprahumeral spines narrow, directed laterally and slightly posteriorly, apices acute (Figs 6-8, 10); strongly tectiform posteriorly (Figs 7, 10). Terminalia. Male lateral plates unarmed (Figs 12, 13); subgenital plate triangular in ventral view, fused basally (Fig. 13); style recurved with short acute apex (Fig. 14); aedeagal shaft in lateral view thickest at mid-length, serrate along swollen anterodistal margin (Fig. 14). Female pygofer long, ovipositor extending even further (Figs 11, 15), together accounting for more than half of body length; second valvula simple, without dentae preapically (Figs 16, 17). Color. Female coloration (Figs 8-11): overall pale, vertex lateral margins black with two vertical black stripes passing over ocelli onto frontoclypeus; pronotum very pale brown with a darker brown central stripe terminating just behind suprahumeral spine, continuing as even paler stripe that arches ventrally to lateral margin, which is also very pale, two indistinct stripes on metopidium, and mottling from base to apex of suprahumeral spines. Wing veins and body pale brown. Male coloration (Figs 5-7) similar to female but all stripes darker, and areas except for stripes orange.

Material examined.

Holotype ♂ (USNM) with labels " GUATEMALA: Peten Dept. Rio | Machaquila, ca. 8 km W of | Machaquila. 15-16 Aug 2015. | N16.39957° W89.48642° 413m, | light traps. R. S. Zack collector" and a red " HOLOTYPE | Ceresinoidea | Ceresinoidea zacki | S.H. McKamey. Slightly broken: right metathoracic leg missing. Paratype ♀ (UVGC)) with labels " GUATEMALA: Izabal Dept | Finca Firmeza, Reserva de | Anfibios, SE of Morales, 540m | N15.40689°, W88.69603° 3-4 | June 2016. R. S. Zack, light traps " and a blue paratype label. Both metathoracic tarsi missing, otherwise intact .

Distribution.

Guatemala.

Etymology.

The specific epithet is a patronym for Dr Richard Zack, who collected the holotype and paratype.

Note.

The holotype and paratype were collected at light traps, indicating a good method to discover more specimens. Among membracids, females are usually only slightly larger than males; in this species the female is significantly larger. The long ovipositor (Fig. 11) is also unusual among membracids.