Herrera humilastrata Sanborn & Heath, 2014

Sanborn, Allen F. & Heath, Maxine S., 2014, The cicadas of Argentina with new records, a new genus and fifteen new species (Hemiptera: Cicadoidea: Cicadidae), Zootaxa 3883 (1), pp. 1-94 : 25-28

Herrera humilastrata Sanborn & Heath , sp. n.

( Figure 7 )

Herrera humilastrata nom. nud. Sanborn et al. 2011a, p. 4 –7, Fig. 3 , Table 1 .

Type material.— ARGENTINA. HOLOTYPE: male ( INHS), “ Salta / Dto. La Caldera / Vaqueros. 13–I–1988 / J.E. & M.S. Heath —Al / Sanborn & F.G. Noriega Coll. ” . PARATYPES: five male same data as holotype (three male MSHC, two male AFSC) ; two male ( MSHC) “ Tucuman / Dto. Lules, 9 km. E. / of Villa Nougues / 18 Jan. 1988. Heath-/ Sanborn-Noriega Coll.” ; one male ( MSHC) “ Salta / Dto. La Caldera / La Calderilla / 13 Jan. 1988 / Al Sanborn Coll.” ; one male ( MSHC) “ Salta / Cerillos / 3 Jan. 1987 / Al Sanborn & / J.E. Heath Coll. ” ; one male and one female “ Salta / Ruta 68 & Rio Pulares / 1 km No. of El Carril / 16 Jan. 1988. Heath-/ Sanborn-Noriega Coll.” (one female MSHC, one male AFSC) ; four male “ Jujuy / San Salvador de / Jujuy. 2 Jan. 1987. / F. Noriega Coll. ” (three male MSHC, one male AFSC) ; eight male and one female ( MSHC) “ Jujuy / San Salvador de / Jujuy. 2 Jan. 1987. / Al Sanborn Coll.” ; three male ( MSHC) “ Salta / 1 km So. of El Allisal / 20 December 1986 / Al Sanborn Coll.” ; two male and one female ( MSHC) “ Salta / 1 km So. of El Allisal / 20 December 1986 / F. Noriega Coll. ” .

Etymology. The species is named for the understory microenvironment used by the species. The microenvironment used is the lowest layer or stratum of the Yunga forest environment.

Diagnosis. — Herrera humilastrata sp. n. can be differentiated from H. ancilla (Stål, 1864) , H. coyamensis Sanborn, 2007 , H. infuscata Sanborn, 2009 , and H. umbraphila sp. n. by the dorsal thoracic markings which are absent in these species. Herrera humilastrata sp. n. can be differentiated from H. lugubrina compostelensis Davis, 1938 by the green posterior margin of the abdominal tergites and the number of timbal ribs (10 vs. six). Finally, H. lugubrina lugubrina (Stål, 1864) and H. laticapitata Davis, 1938 are primarily black species.

Description

Coloration.—There are two morphs in this species. The primary ground color is tawny marked with piceous. The holotype is from the darker primary morph. The light morph is tawny with very few markings. The two morphs were collected in the same locations on the same days and did not appear to differ in their biology. We consider them to be color variants of the same species not warranting subspecific status.

Head.—About as wide as mesonotum (about 0.99X), piceous except tawny lateral vertex between eye and supra-antennal plate, posterior epicranial suture and medial posterior margin. Ocelli rosaceous, eyes dark green. Silvery pile on dorsal head and longer pile posterior to eye and on ventral head. Postclypeus greenish tawny, rounded anteriorly, centrally sulcate with 10 transverse grooves and silvery pile laterally. Curved fuscous mark on dorsal surface arching from angle of frontoclypeal suture, medial fuscous marks in middle six transverse grooves. Anteclypeus fuscous with green anterior margin and anterior midline, covered with silvery pile laterally. Rostrum greenish tawny with piceous tip, not reaching to posterior coxae. Gena piceous. Lorum piceous, green anteriorly along gena. Antennae fuscous except tawny distal scape and proximal pedicel. Head completely tawny except small medial fuscous marks on either side of anteclypeus midline.

Thorax.—Pronotum greenish tawny, piceous marks in paramedian fissures extending to fuse at midline in ambient fissure, lateral fissures, anteriorly between paramedian and lateral fissures, ambient fissure between midline and lateral fissures and anterolaterally and centrally on lateral disc. Silvery pile in fissures, expanding onto disc in some paratypes. Light morph with marks in paramedian and lateral fissures, other marks reduced or absent. Mesonotum tawny, submedian sigilla piceous, lateral sigilla broken fuscous, fuscous spot on anterolateral disc, square fuscous mark on disc extending onto medial anterior cruciform elevation, between anterior arms of cruciform elevation enclosing scutal depressions and terminating posterior to submedian sigillae. Cruciform elevation greenish tawny. Wing groove fuscous. Long silvery pile laterally, between anterior arms of cruciform elevation and in wing groove. Metanotum tawny posteriorly, piceous anteriorly, with long silvery pile. Area with markings slightly darker than tawny ground color in light morph. Ventral thoracic plates tawny except fuscous basisternum 2, outer margins of trochantin 2, medial katepisternum 2, meron 2, medial margin of katepimeron 2, basisternum 3, medial and posterior notch of episternum 3 and trochantin 3, completely tawny in light morph. Venter covered with dense, silvery pile.

Forewing and hind wing.—Hyaline. Forewing venation greenish tawny becoming testaceous distally except piceous basal half of posterior margin of testaceous anal vein 2 + 3 and anterior cubitus posterior + anal vein 1 and small piceous spot at base. Basal cell hyaline. Basal membrane gray and green. Hind wing venation ochraceous becoming fuscous distally except green cubitus anterior. Vanal fold, anal cell 3, anal cell 2 along anal veins 2 and 3, cubital cell 2 along cubitus posterior, and base of medial cell grayish tawny. Green faded to ochraceous in some paratypes, venation completely ochraceous in light morph.

Legs.—Greenish tawny, tawny areas green in some paratypes. Coxae, trochanter and femora striped with fuscous, less in middle trochanter. Fore femora with oblique primary spine, less oblique secondary spine, tertiary spine most oblique and small, oblique distal spine on fuscous ridge. Spines fuscous and piceous, decreasing in size distally. Fore tibiae tawny with green base, middle and hind tibiae green distally tawny, hind tibiae green, tibial spurs and combs tawny with fuscous tips. Tarsi tawny, darker in foreleg. Pretarsal claw tawny with fuscous tips. Legs tawny with fuscous tips to fore femora spines, tibial spurs and tibial combs in light morph.

Operculum.—Male operculum ochraceous with fuscous spots on medial and lateral base, not reaching posterior margin of sternite II. Lateral margin angled mediad, posterior margin curved, medial margin rounded, medial margins not touching, anteromedial margin curved to base. Meracanthus ochraceous with fuscous base, reaching beyond anteromedial margin of operculum. Female operculum ochraceous with fuscous lateral spot on base, angled lateral margin, straight posterior margin, medial margin rounded near base, reaching to anterior of sternite II posteriorly and lateral meracanthus medially covered with silvery pile. Meracanthus ochraceous with small fuscous spot on base, slightly longer than operculum. Operculum and posterior meracanthus covered with silvery pile which also radiates from opercular margin.

Abdomen.—Dorsal tergites fuscous with green posterior margin and piceous auditory capsule, fuscous replaced with tawny in some paratypes. Tergites covered with silvery pile, more dense laterally. Timbal with 10 ribs. Sternite I piceous, sternite II ochraceous except piceous medially, sternites III and IV piceous medially, tawny laterally, sternite V–VII piceous, sternite VIII fuscous. Female sternites tawny laterally with medial fuscous stripe. Epipleurites with green posterior margin, epipleurite 3 tawny, epipleurites 4–6 tawny anteriorly, fuscous posteriorly, the proportion of fuscous increasing in posterior segments, epipleurite 7 fuscous. Silvery pile on sternites, long golden pile on sternite VIII. Light morph segment tawny with green posterior tergite margins.

Male genitalia.—Pygofer fuscous with posterolateral greenish tawny spot, lateral area with greater proportion of tawny in some paratypes. Dorsal beak fuscous, anal styles ochraceous not extending to end of dorsal beak. Pygofer upper lobe folded medially, pygofer basal lobe small, rounded, bent medially. Long golden pile radiating medially inside pygofer. Uncus lobes very small. Claspers with broad base, thinning and bending at a right angle before producing posterior curved spinous process, anterior portion flat with terminus bifurcating into two spinelike processes. Aedeagus tubular with partially flattened terminus, castaneous.

Female genitalia.—Sternite VII piceous medially, tawny laterally with long silvery pile laterally, posterior margin with deep medial notch, lateral margins of notch extend beyond curving lateral posterior margins. Abdominal segment 9 fuscous with longitudinal greenish tawny stripe not reaching posterior margin, covered with silvery pile. Anal styles fuscous, not as long as dorsal beak. Dorsal beak bent dorsally. Gonocoxite IX light fuscous. Gonapophysis VII castaneous. Gonapophysis X dark fuscous with long golden pile. Ovipositor sheath extending to level of abdominal segment 9 dorsum.

Measurements (mm).— N = 27 males or 4 females, mean (range). Length of body: male 12.5 (10.8–13.4), female 14.7 (13.7–15.1); length of forewing: male 16.7 (14.8–18.0), female 18.2 (17.0–19.0); width of forewing: male 5.8 (5.0–6.4), female 6.5 (6.2–6.7); length of head: male 1.4 (1.3–1.6), female 1.65 (1.6–1.7); width of head including eyes: male 4.3 (3.8–4.6), female 4.58 (4.5–4.7); width of pronotum including suprahumeral plates: male 4.9 (4.5–5.4), female 5.38 (5.2–5.7); width of mesonotum: male 4.4 (4.0–4.6), female 4.9 (4.6–5.4).

Notes. — Herrera humilastrata sp. n. is from the understory vegetation in the Yunga floristic province ( Sanborn et al. 2011a). The species has been shown to have unique thermal adaptations to the understory environment ( Sanborn et al. 2011a).

Figures

FIGURE 3. Proarna parva Sanborn & Heath sp. n. (A) Holotype male habitus. (B) Holotype male dorsum. (C) Holotype male timbal cover. (D) Holotype male operculum. (E) Holotype male lateral view of genitalia. (F) Holotype male posterior view of genitalia. Scale for A = 2 cm, B = 2 mm, and C–F = 1 mm.

FIGURE 7. Herrera humilastrata Sanborn & Heath sp. n. (A) Holotype male and paratype female habitus. (B) Holotype male dorsum. (C) Holotype male timbal. (D) Paratype male operculum. (E) Paratype female operculum. (F) Paratype male lateral view of genitalia. (G) Paratype male posterior view of genitalia. (H) Paratype female lateral view of genitalia. (I) Paratype female ventral view of genitalia. Scale for A = 2 cm, B = 2 mm, and C–I = 1 mm.