Icaia straminea, Zahniser, James N. & Hicks, Andrew, 2007

Zahniser, James N. & Hicks, Andrew, 2007, Three new species of Icaia Linnavuori (Hemiptera: Cicadellidae: Deltocephalinae) from Peru and distinction of the genus from Athysanella Baker, Zootaxa 1390, pp. 27-39 : 32-34

Icaia straminea sp. nov.

( Figs. 1–11 )

Length of male 3.2–3.5 mm, length of female 3.7–4.0 mm. Color stramineous to ochraceous with variable degree of fuscous to dark brown markings. In marked specimens, anterior margin of head with a pair of small dark spots and crown with fuscous markings. Crown depressed posteriorly; with fine longitudinal striations; apex with a slight depression; rounded to face. Brachypterous; wings exposing 3 to 4 pregenital abdominal segments; wings nearly clear, with veins not reticulated. Legs with fuscous and brown markings. Hind femur macrosetal formula 2+2+1, with posterior­most seta of penultimate pair reduced in size. Third abdominal tergite darkly colored.

Male. Pygofer short, with 3 or 4 long setae on dorsal half and with numerous stout setae scattered near posterior margin. Valve strongly pigmented medially. Subgenital plates with about 5 macrosetae: often with 3 near lateral margin and 2 medially. Connective slightly longer than style; with anterior arms long and closely appressed anteriorly; stem broad. Style with median and lateral anterior lobes gracile; preapical lobe distinct and bearing several small setae on dorsal side; apophysis falcate. Aedeagus very broad; caudal surface undulate near apical third of shaft, forming a ridge medially; with a small sclerotized plate articulated with dorsal margin of atrium.

Female. Pygofer with 5 to 12 macrosetae near ventral and caudal margins. Seventh sternite with a broad medial incision; anterodorsal connective tissue (sternite VIII) pigmented and relatively strongly sclerotized. First valvula dorsal sculpturing pattern maculose to granulose, submarginal. Second valvula dorsal teeth of the typical chiasmine shape, extending over one half of the apical dorsal margin. Gonoplac (=”third valvulae”) with several short macrosetae concentrated near apex.

Material examined. Holotype male, PERU: Huánuco / 18 km S Ambo, 2350m / 28 Oct 2002, R.A. Rakitov / vacuum, 02­46­5. 8 male and 7 female paratypes, same locality. Holotype deposited at MUSM. 5 male and 4 female paratypes deposited at INHS, 1 male and 1 female paratype at CNC, 1 male and 1 female paratype at UCMC, and 1 male and 1 female paratype at SEMC.

Etymology. The species name is the feminine form of the Latin adjective stramineous, and refers to its straw­colored body.

Diagnosis. This species is distinguished from all other Icaia by its broad aedeagus ( Fig. 3 ).

Figures

FIGURES 1 – 11. Icaia straminea sp. nov. 1: dorsal habitus, male; 2: lateral habitus, male; 3: aedeagus, laterally; 4: connective, styles, and aedeagus, ventrally; 5: male pygofer, laterally; 6: subgenital plates and valve, ventrally; 7: female sternite VII, ventrally; 8: first valvula, laterally; 9: detail of dorsal sculpturing of first valvula; 10: second valvula, laterally; 11: detail of dorsal teeth of second valvula.