Arenaeocoris enervatus, Blinn, Robert L., 2012

Blinn, Robert L., 2012, Arenaeocoris enervatus (Hemiptera: Heteroptera: Reduviidae: Stenopodainae), a new genus and species from the Southeastern United States, Zootaxa 3478, pp. 105-110 : 108-109

Arenaeocoris enervatus n. sp.

( Figs. 1 , 2 )

Diagnosis. Recognized by the characters given in the generic diagnosis.

Description. Male ( Fig. 1 a). Length 9.50–11.70 (11.70)(n = 11). Overall color black, paler specimens with variable areas on the head, extending from apex to much of apical lobe, antennae, rostrum, hemelytra and abdomen pale; head and thorax covered with setigerous spines. Head black with apex variably colored, either black or paler; interocular sulcus to apex length 1.11–1.36 (1.36); interocular sulcus to base length 0.52–0.64 (0.57); width across eyes 1.19–1.31 (1.31); interocular width 0.54–0.61 (0.59); dorsal length of eye 0.37–0.44 (0.42); height of eye 0.49–0.54 (0.52), lower margin even with lower surface of head; juga porrect divergent; prominent setigerous spine located laterally at antennal base, ocelli elevated; ventrally with 2 rows of larger setigerous spines extending length of head each side of the rostrum, terminating as a ramose setigerous spine (poorly developed in some specimens), setigerous spines from eyes to base of head with bases pale, and a single row of smaller setigerous spines located medially extending from the base of the head forward to between the eyes ( Figs. 2 a–c). Antennal segments I, 0.99–1.28 (1.28), dorsally with pale short scale-like setae, laterally and ventrally with erect stout setae and finer pale setae, finer setae longer and more dense ventrally; II, 1.21–1.48 (1.43), dorsally with pale short scale-like setae arranged in 2 poorly defined rows, laterally and ventrally pilose with a mixture of darker erect setae and finer pale setae, finer setae denser and longer basally; III, 0.20–0.27 (0.25); IV, 0.52–0.64 (0.64), both segments with fine, short, recumbent whitish setae and erect, sparse whitish hairs. Rostral segments I, 0.79–0.99 (0.99); II, 0.99–1.14 (1.14); III, 0.49–0.53 (0.49). Legs mostly pale; procoxae pale, mesocoxae variable marked with black, metacoxae black except pale spot at apex; trochanters pale; femora with distal 1/3 black; pro- and mesotibiae with black bands located at the base, near middle and at apex; metatibiae with weakly developed basal and apical black bands; tarsi 3-segmented, black. Pronotum length 1.80–2.30 (2.30), humeral width 2.70–3.20 (3.20), setigerous spines arranged so as to leave short longitudinal narrow bare areas and circular areas on the frontal lobe. Median area distinctly depressed, forming a short longitudinal furrow. Prosternal processes well developed, extending towards hind margin of eye. Humeral angles acute, yellow, directed posterior-laterad. Scutellum with short blunt hortizonal spine, metascutum with a small vertical blunt elevation medially. Hemelytra extending to or slightly beyond apex of abdomen; corium, basal portion of clavus and veins black to brownish, membrane irrorate with brown; apical cu-pcu cross-vein absent. Abdomen black, dorsal and ventral laterotergites with small anteriorlateral area and larger posteriorlateral area of each segment pale. Pale area subtriangular and extending to dorsal connexival suture. Sternite reddish brown, transversely rugose; each segment with 3 small polished spots, 2 located near anterior margin of each segment and 3rd medially near spiracle; spiracles located medially adjacent to ventral connexival suture. Posterior angles of abdominal segments not produced angularly. Seventh abdominal tergite truncate apically. Pygophore sinuate in lateral view ( Fig. 2 e). Distal ½ of paramere dilated, with blunt angular process on inner side, inner surface with erect dense pilosity ( Figs. 2 f).

Female ( Fig. 1 b, 2d). Similar to male in coloration. Apterous, form strongly pyriform. Antennal segments I and II lacking dense setae ventrally. Head, thorax and dorsum of abdomen densely covered with setigerous setae, setigerous setae not as dense or strongly developed on venter of abdomen. Prosternal processes angled slightly downward. Protarsi 2-segmented, meso- and metatarsi 3-segmented.

Measurements. Total length 11.60, interocular sulcus to apex of head 1.30, interocular sulcus to base of head 0.69, dorsal length of eye 0.37, width across eyes 1.23, vertex width 0.67, eye height 0.44. Antennal segment I, 0.94; II, 1.08; III, 0.25, IV 0.89. Rostrum segment I, 0.99; II, 1.19; III, 0.54. Pronotum length 1.30, humeral width 1.73.

Etymology. From the Latin ex-, for “out of” and nervus, for “nerve,” referring to the absent or weakly developed apical cross vein of the cubital cell which is characteristic for the subfamily Stenopodainae .

Holotype male. “ NORTH CAROLINA/Moore County/Southern Pines/ 8 May 1986 /W.E. Steiner; HOLOTYPE / Arenaeocoris / enervatus /Blinn 2012”. Deposited in the USNM.

Paratypes. ALABAMA, Baldwin Co., Bon Seccur NWR, 30°14’10”N 87°49’49”W, 11 May 1994, T.L. Schiefer (coll.), blacklight, MV-lamp in hind dunes (1 male, MEM). FLORIDA, Levy Co., 4.0 miles SW Archer, 3 May 2002, P. Skelley (coll.), MV + UV light (2 males, FSCA, 1 male, NCSU); Highlands Co., Archbold Biological Station, 20–27 April 1981, T.J. Henry (coll.), Taken in blacklight trap (1 male, USNM); Taylor Co., Blue Spring Lake, 9 June 1974, C.L. Smith (coll.), black light (1 male, UGCA); Marion Co., Lake Eston, 24 April 1975, P.C. Drumond, blacklight trap (1 male, FSCA); Marion Co., Ocala National Forest, 23 April 1988, P.J. Landolt (coll.)(1 male, FSCA); Wakulla Co., 4 miles west Panacea, 9 June 1972, R. Baer (coll.)(1 male, UGCA). GEORGIA, Emanuel Co., Ohoopee Dunes Nat. Area, 15 March–10 June 2000, R. Turnbow (coll.), barrier pitfall (1 female, UGCA). SOUTH CAROLINA, Aiken Co., Jackson, 21 May 1960, trap light (1 male, USNM).

Figures

FIGURE 1. Arenaeocoris enervatus n. sp. a: Male (holotype); b: Female.

FIGURE 2. Arenaeocoris enervatus n. sp. a: Male head, dorsal view; b. Male head, ventral view; c. Male head, lateral view; d. Female head, lateral view; e. Pygophore, lateral view; f. Right paramere.