Penottus fujianensis, Dang, Kai, Li, Chuanren & Bu, Wenjun, 2012

Dang, Kai, Li, Chuanren & Bu, Wenjun, 2012, Four new species of Penottus Distant (Hemiptera: Tingidae) from China, Zootaxa 3346, pp. 29-42 : 35-39

Penottus fujianensis sp. n.

( Figs. 1 B, 3B, 4B, 5A, 6C, 7B)

Description. Body brownish. Head fuscous, covered with brownish pruinosity, eyes black, antennae brown with end half of terminal segment blackish brown. Paranota brown; posterior process of pronotum brown with apex pale. Hemelytra brown, costal area with basal and subapical areolae pale and semitransparent. Ventral side of body blackish brown. Body length (N = 1 male, 1 female): male, 4.26; female, 4.45; width (across hemelytra): male, 1.95; female, 1.85.

Head long, preocular part length nearly twice as long as longitudinal length of eye (0.30/0.17) in lateral view. Frontal and median spines short, stout, erect, tuberculiform; occipital spines long, appressed. Antenniferous tubercles short, apex bent downwards; antennal segmental measurements: male, I, 0.22; II, 0.14; III, 1.70; IV, 0.60; female, I, 0.22; II, 0.15; III, 1.52; IV, 0.57. Bucculae narrow, mostly uniseriate and narrower anteriorly, barely joined in front. Rostral sulcus uniseriate, widely open posteriorly; rostrum reaching apex of rostral sulcus.

Pronotum: anterior margin of collar sinuate and median portion convex anteriorly. Hood of collar relatively large, longer than wide, five areolae long. Median carina raised along pronotum, uniseriate, sinuate; anterior part of lateral carinae concealed by paranota greatly trisinuate and raised, with a few spines each ridges ( Fig. 6 C). Paranota ( Fig. 3 B) inflated, cystiform, not spherical but flattened on its meeting side, longer than high (l/h: 1.42/1.18) and narrower than high (w/h: 0.98/1.18), areolae large, polygonal; paranota covering most of pronotum except most of posterior process, nearly entire median carina, hood and collar, with outer margin little touching median carina but not meeting dorsally ( Figs. 4 B, 7B); width across paranota shorter than length of pronotum (1.85/2.03), height of paranota four times longer than length between base of paranota and inner-lateral margin of propleuron (1.18/0.30); area of paranotal outline large in dorsal view ( Fig. 7 B), area laterad of LAMP larger than area mediad of LAMP. Apical part of pronotal posterior process somewhat roof-like, elevated medially where median carina placed. Outer-lateral margin of metapleuron anteriad of scent gland orifice prominently evaginated. Scent gland ostioles elongate ( Fig. 5 A).

Hemelytra broad, widest at its middle portion, outer margin weakly rounded. Costal area sinuate, anteriorly bent upwards, mostly triseriate, biseriate at some places, areolae rarely arranged in a transverse row, irregular. Subcostal area as wide as costal area, divided into two areas by a longitudinal vein; outer part uniseriate, inner part biseriate, areolae small. Discoidal area approximately two-thirds as long as hemelytra, seven areolae broad at its widest part, with an oblique dark veinlet at middle, outer margin sinuate. Sutural area large, eleven to twelve areolae broad at its widest part.

Etymology. The specific name is derived from the name of type locality, Fujian province, China.

Material examined. Holotype: male, China, Fujian Province, Zhangzhou City, Nanjing County, Hexi, 9. IV. 1965. Paratype: 1 female, same data as holotype.

Remarks. Penottus fujianensis sp. n. is similar to P. minicystus in general aspect, differing from the latter by the following characters: outer margins of paranota posteriorly touching the median carina (in P. m i n i c y s t u s not touching the median carina, with a distinct interspace); ratio of antennal segment III to IV much different (female, 1.52/0.57 vs. 1.77/0.37 of P. minicystus ). P. fujianensis sp. n. is also similar to P. bisinuatus sp. n., but distinctly differs from the latter by its greatly trisinuate lateral carinae beneath the paranota ( Fig. 6 B, C). P. fujianensis sp. n. is separated from P. verdicus (described from Taiwan) by its shorter body (5.20 mm in P. verdicus ), its narrower subcostal area (mostly quadriseriate in P. v e rd i c u s), its longer occipital spines (tuberculiform in P. verdicus ), and its areolate carinae on pronotum.

The greatly trisinuate lateral carinae beneath the paranota in P. fujianensis sp. n. is similar to the condition found in P. cassideus sp. n. However, P. fujianensis sp. n. differs from the latter by its much inflated paranota, which cover most of hood in lateral view so that hood is visible faintly (in P. cassideus sp. n., the paranota are moderately inflated, covering less of hood in lateral view, so that most of hood is visible, cf. Figs. 3 B–C, 4B–C); in P. fujianensis sp. n., the lateral carinae are greatly raised but moderately raised in P. cassideus sp. n. ( Fig. 6 A, C), the area of paranota laterad of LAMP is larger than that mediad of LAMP (smaller in P. cassideus sp. n.), and the rostrum extends apex of rostral sulcus.

The holotype of P. fujianensis sp. n. lacks the right antenna; furthermore, its left paranotum and the apex of the posterior pronotal process are damaged, thus, the description is accompanied with photographs of the female paratype. The character of the anterior lateral carinae concealed by paranota ( Fig. 6 C) was drawn from the holotype.

Figures

FIGURE 1. Photographs in dorsal view. A. Penottus bisinuatus sp. n. (male); B. P. fujianensis sp. n. (female); C – D. P. cassideus sp. n. (C: male; D: female). Each scale 1.0 mm.

FIGURE 3. Photographs of heads and paranota in lateral view. A. Penottus bisinuatus sp. n.; B. P. fujianensis sp. n.; C. P. cassideus sp. n.; D. P. tuberculiformis sp. n.; E. P. tibetanus Drake and Maa; F. P. monticollis (Walker). Each scale 1.0 mm.

FIGURE 4. Photographs of heads and paranota in dorsal view. A. Penottus bisinuatus sp. n.; B. P. fujianensis sp. n.; C. P. cassideus sp. n.; D. P. tuberculiformis sp. n.; E. P. tibetanus Drake and Maa; F. P. monticollis (Walker). Each scale 1.0 mm.

FIGURE 5. Photographs of scent gland ostiole in lateral view. A. Penottus fujianensis sp. n.; B. P. cassideus sp. n.; C. P. bisinuatus sp. n.; D. P. tuberculiformis sp. n.; E. P. tibetanus Drake and Maa; F. P. monticollis (Walker). Each scale 0.5 mm. SGO = sent gland ostiole.

FIGURE 6. Illustrations of lateral carinae beneath the paranota in dorsal view (left paranotum removed). A. Penottus cassideus sp. n.; B. P. bisinuatus sp. n.; C. P. fujianensis sp. n.; D. P. tuberculiformis sp. n.; E. P. tibetanus Drake and Maa. Each scale 1.0 mm.

FIGURE 7. Illustrations of outline of pronotum with paranota in dorsal viewin dorsal view. A. Penottus bisinuatus sp. n.; B. P. fujianensis sp. n.; C. P. cassideus sp. n.; D. P. tuberculiformis sp. n.; E. P. tibetanus Drake and Maa; F. P. monticollis (Walker). Each scale 1.0 mm. LAMP = an imaginary line, connecting the anterolateral angle of the collar and the meeting point of the lateral margin of the paranotum and the posterolateral margin of the pronotum.