Smilidarnis robustus, McKamey, 2023

McKamey, Stuart H., 2023, Three new species of the Neotropical genus Smilidarnis Andrade (Hemiptera, Membracidae), ZooKeys 1174, pp. 85-95 : 85

Smilidarnis robustus sp. nov.

Figs 1 , 14-20

Diagnosis.

Pronotum with pair of suprahumeral spines; pronotal width across posterior spines slightly greater than width across suprahumeral spines.

Description of female.

Dimensions (mm). Length of pronotum 10.3; length including wings in repose 12.4; width across suprahumeral spine apices 5.0; width across posterolateral spine apices 5.8; height in anterior view 5.1. Head (Fig. 16 ). Vertex wider than tall, glabrous, without irregular ridges, dorsal margin weakly convex, lateral margins straight; ocelli circular, below imaginary middle line between eyes; distance to eye 1.3 × distance between ocelli; midline and frontoclypeal sutures prominent; frontoclypeus extending ventrally beyond vertex ventrolateral margins, with distinct sutures. Pronotum (Figs 14-16 ). Suprahumeral spines present with robust bases, projecting laterally and slightly ventrally; weakly elevated immediately behind suprahumeral spines, this posterior portion roughly trapezoidal in lateral view, abruptly narrowed laterally and expanding again to apical portion that bears pair of widely separated stout lateral spines and middle slender spine; lateral pair with apices broader than span of suprahumeral spines and directed posterolaterally, middle spine directed posteriorly and not attaining forewing vein M3+4. Forewing (Fig. 1 ) R and M not confluent for short distance near apex. Leg chaetotaxy. Femora lacking cucullate setae and spines; metathoracic tibia row I cucullate setae double, row II absent, row III cucullate setae double.

Female terminalia. Sternite VII broadly, smoothly emarginate medially (Fig. 17 ); valvula I long, apex subacute (Fig. 18 ); valvula II (Fig. 19 ) in lateral view with dorsal margin linear in basal 2/3, then bearing 4 minute dentae followed by weak irregular expansion, apex rounded; valvula III (Fig. 20 ) long, apex rounded broadly, bearing fine hairlike setae on entire ventral half. Abdominal terga without pits, fossae, or digitate processes. Color. Pronotum burnt orange throughout except dark brown on suprahumeral spines, apex including lateral spines, this apical darkness interrupted by pair of subcircular pale spots on either side of the middle spine (visible in posterior view only); forewing anteriorly with amber tint, otherwise hyaline; ventrally concolorous with pronotum except black meso- and metathoracic coxae and pleural area between them.

Male. Unknown.

Material examined.

Holotype ♀ (USNM) with labels "Shapajilla, | Peru | May, 1939", "WDFunkhouser | Collection | 1962", "Omalon [sic] | sp. nov.", "Deitz Research | 71-350a ♀ ", "CHD Research | #98-0004", and a red " HOLOTYPE | Smilidarnis | Smilidarnis robustus | S.H. McKamey ". There are several parts missing from the holotype: prothoracic left tibia and tarsi (the right is covered in glue), mesothoracic left tarsi (the right is covered in glue), and the metathoracic left trochanter to tarsi. The holotype has the left wing with an aberration of a thin third m-cu crossvein.

Etymology.

The species epithet is a masculine adjective referring to the overall robustness of this species’ pronotum.

Figures

Figure 1. Smilidarnis robustus sp. nov., forewing and hind wing.

Figures 14 - 20. Smilidarnis robustus sp. nov. 14 - 16 habitus in dorsal, lateral, and anterior views, respectively 17 abdominal segment VII, ventral view 18 - 20 valvifers 1, 2, and 3, respectively.