Proboscidopirates ericguilberti, Baňař, Petr, Štys, Pavel, Rahanitriniaina, Sahondra Lalao & Rabotoson, Marie Estherine, 2015

Baňař, Petr, Štys, Pavel, Rahanitriniaina, Sahondra Lalao & Rabotoson, Marie Estherine, 2015, Two new species of the genus Proboscidopirates (Hemiptera: Heteroptera: Enicocephalidae) from Madagascar with a list of the species, Zootaxa 3905 (3), pp. 407-417 : 408-412

Proboscidopirates ericguilberti sp. nov. Baňař & Štys

( Figs. 1–8 )

Material examined. All macropterous females. Holotype, female: ASB/ Nov 2011 MADAGASCAR / border of ANDASIBE N.P.; 27.xi. - / 3.xii.; FEON’NY ALA hotel surr. / sifting leaf litter, Winkler app. / extr.; L.S. Rahanitriniaina lgt. // HOLOTYPE / Proboscidopirates / ericguilberti sp. nov. / P. Baňař & P. Štys det. 2014 [printed red label] ( MMBC); paratypes: 6 ♀, same data as holotype (2 ♀ MMBC; 2 ♀ PSPC; 1 ♀ HNHM; 1 ♀ NMPC); 6 ♀, MADAGASCAR —CE / ANDASIBE N.P.; 26.xi.2010 / „Circuit Indri 2“; sifting; / L.S. Rahanitriniaina lgt. (1 ♀ AMNH; 3 ♀ MMBC; 1 ♀ PSPC; 1 ♀ USNM) [two paratypes from MMBC gold-coated for SEM study]; 1 ♀, ASB/02/2011 MADAGASCAR / ANDASIBE N.P.; 9.iv.2011 / forest edge near road to / Andasibe vill.; sifting rott. wood / Winkler app. extr.; P.Baňař lgt. ( MMBC); 1 ♀, ASB/04/2011 MADAGASCAR / ANDASIBE N.P.; 9.iv.2011; edge / ‚Parc d’Orchidées‘; sifting forest / litter, Winkler app. extr.; P. Baňař / & L.S.

Rahanitriniaina lgt. ( MMBC); 1 ♀, ASB/06/2011 MADAGASCAR / ANDASIBE N.P.; 11.iv.2011 / S18°56′ 505′′ E48°25′ 226′′; 948m / sifting litter in stream ravine / without water; Winkler app. extr. / P.Baňař lgt. ( PSPC); 6 ♀, ASB/07/2011 MADAGASCAR / ANDASIBE N.P.; 11.iv.2011 / S18°56′ 505′′ E48°25′ 224′′; 947m / sifting in shallow ravine, Winkler / app. ext. L.S. Rahanitriniaina lgt. (2 ♀ MMBC; 2 ♀ PSPC; 1 ♀ BMNH; 1 ♀ MHNG); 1 ♀, ASB/11/2011 MADAGASCAR / ANDASIBE N.P.; 12.iv.2011 / S18°56′31.1′′ E48°25′10.4′′; 961m / sifting forest litter, Winkler app. / extr.; L.S. Rahanitriniaina lgt. ( PSPC); 1 ♀, ASB/12/2011 MADAGASCAR / ANDASIBE N.P.; 12.iv.2011; 951m / S18°56′20.5′′ E48°25′12.2′′; sifting / plant residues under Pandanus / Winkler app. extr.; P. Baňař & / L.S. Rahanitriniaina lgt. ( MMBC); 1 ♀, MADAGASCAR 2011 / ANDASIBE N.P.; 2.- 5.v.2011 / sifting leaf litter, Winkler / apparatus extraction / L.S. Rahanitriniaina lgt. ( PSPC); 1 ♀,ASB/ May2011 / 0 1 MADAGASCAR / ANDASIBE N.P.;´Belle vue ´; 2.v. / 2011; S18°56′51.5′′ E48°25′31.8′′ / 1029m; sifting forest litter; Winkler / app. extr.; L.S. Rahanitriniaina lgt. ( MMBC); 4 ♀, ASB/ May2011/09 MADAGASCAR / ANDASIBE N.P.;´Anivokely ´; 3.v. / 2011; S18°56′19.4′′ E48°25′22.5′′ / 946m; sifting forest litter; Winkler / app. extr.; L.S. Rahanitriniaina lgt. (1 ♀ MMBC; 1 ♀ PSPC; 1 ♀ MNHN; 1 ♀ NKUM); 1 ♀, ASB/ May2011/14 MADAGASCAR / ANDASIBE N.P.;´Bas fond ´; 3.v. / 2011; S18°56′23.0′′ E48°25′01.7′′ / 945m; sifting forest litter; Winkler / app. extr.; L.S. Rahanitriniaina lgt. ( MMBC); 4 ♀, ASB/ May2011/17 MADAGASCAR / ANDASIBE N.P.; 4.v.2011, 1027m /´Ambatomandondona ´; sifting / forest litter; Winkler app. extraction / S18°55′52.9′′ E48°25′40.2′′ / L.S. Rahanitriniaina lgt. (1 ♀ MMBC; 1 ♀ NMPC; 2 ♀ PSPC); 8 ♀, ASB/ Nov.2011 / 0 1 MADAGASCAR / border of ANDASIBE N.P.; 29.xi. / 2011; sifting leaf litter, Winkler app. / extraction; L.S. Rahanitriniaina lgt. (3 ♀ MMBC; 3 ♀ PSPC; 2 ♀ ZJPC); 1 ♀ Mad-89/2: Madagascar (Prov. / Toamasina [Tamatave], Sous-préf. / Moramanga): Réserve / Analamazoatra (Perinet) près / d’Andasibe, forêt primaire, / prélèvement de sol au pied de / Oetece sp. ( Lauraceae ), 960m; / 21.XI.1989; leg. B.Hauser (Berlese à / Antananarivo) ( MHNG); 2 ♀, ABT/07/2011 MADAGASCAR 2011 / AMBOHITANTELY Spec. Res.; 19.iv. / S18°11′11.0′′ E47°17′08.5′′; 1624m / sifting plant residues under / Pandanus ; Winkler apparatus / extraction; L.S. Rahanitriniaina lgt. (1 ♀ MMBC; 1♀ PSPC); 1 ♀, ABT/10/2011 MADAGASCAR 2011 / AMBOHITANTELY Spec. Res.; 19.iv. / S18°11′39.2′′ E47°17′12.6′′; 1674m / sifting of plant residues under / Pandanus ; Winkler app. extr.; L.S. / Rahanitriniaina & R. Raveloson lgt. ( MMBC); 1 ♀, ABT/11/2011 MADAGASCAR 2011 / AMBOHITANTELY Spec. Res.; 19.iv. / S18°11′44.6′′ E47°17′13.3′′; 1609m / sifting of plant residues under / Pandanus ; Winkler app. extr.; L.S. / Rahanitriniaina & R. Raveloson lgt. ( PSPC); 1 ♀, ABT/15/2011 MADAGASCAR 2011 / AMBOHITANTELY Spec. Res.; 20.iv. / S18°11′31.0′′ E47°17′33.3′′; 1630m / sifting forest litter; Winkler app.extr. / L.S.Rahanitriniaina & R.Raveloson lgt. ( MMBC); 3 ♀, ABT/ Nov.2011/01 MADAGASCAR / AMBOHITANTELY Spec. Res.; 16.xi. / 2011; S18°11′52.7′′ E47°17′0.4′′ / 1603m; sifting forest litter under big / Pandanus, Winkler app. extraction / L.S. Rahanitriniaina & P. Baňař lgt. (2 ♀ MMBC; 1 ♀ PSPC); 3 ♀, ABT/ Nov.2011/02 MADAGASCAR / AMBOHITANTELY Spec. Res.; / S18°11′49.1′′ E47°17′05.6′′; 1547m / 16-17.xi.2011; sifting forest litter / Winkler app. extraction / L.S. Rahanitriniaina & P. Baňař lgt. (1 ♀ MMBC; 2 ♀ PSPC); 1 ♀, ABT/ Nov.2011/07 MADAGASCAR / AMBOHITANTELY Spec. Res.; 17.xi. / 2011; S18°11′48.5′′ E47°17′09.3′′ / sifting forest litter under Pandanus / Winkler app. extraction; very dry / material; 1595m; P. Baňař lgt. ( MMBC); 1 ♀, ABT/ Nov.2011/08 MADAGASCAR / AMBOHITANTELY Spec. Res.; 18.xi. / 2011; S18°11′48.5′′ E47°17′09.3′′ / sifting forest litter; Winkler app. / extraction; 1595m; P. Baňař lgt. ( MMBC); 4 ♀, ABT/ Nov.2011/10 MADAGASCAR / AMBOHITANTELY Spec. Res.; 18.xi. / 2011; sifting forest litter under palm / tree; Winkler app. extraction; / ~ 1600m; P. Baňař lgt. (2 ♀ MMBC; 2 ♀ PSPC); 2 ♀, ABT/ Nov.2011/18 MADAGASCAR / AMBOHITANTELY Spec. Res.; 1614m / S18°11′48.7′′ E47°17′11.3′′; 22.xi. / 2011; sifting litter under group of / palm trees; Winkler app. extraction / L.S. Rahanitriniaina lgt. (1 ♀ MMBC; 1 ♀ PSPC); 9 ♀, ABT/ Nov.2011/20 MADAGASCAR / 300m N of MANANKAZO vill.; 1491m / S18°09′15.1′′ E47°12′39.6′′; 25.xi. / 2011; sifting forest litter; Winkler app. / extraction; P. Baňař lgt. (5 ♀ MMBC; 4 ♀ PSPC). Each paratype bears red printed label: PARATYPE / Proboscidopirates / ericguilberti sp. nov. / P. Baňař & P. Štys det. 2014.

The alcohol preserved specimens in vials are labelled collectively. Altogether, 71 female paratypes are included in the type series. The approximately 120 female nymphs (all preserved in alcohol) are excluded from the type series.

Description. Measurements (in mm); holotype first; (paratypes in parentheses); L = length; W = width. Total body L —4.9 (4.8–5.3). Head (without neck). Total L—1.11 (1.04–1.15); posterior lobe, L—0.33 (0.31–0.34), posterior lobe, W—0.39 (0.38–0.40); distance eye-apex of antennifer—0.39 (0.39–0.40); diatone (maximum width across eyes)—0.37 (0.36–0.38); dorsal synthlipsis (minimum interocular distance)—0.22 (0.20–0.23); eye, L—0.19 (0.17–0.20); gena, L—0.22 (0.22–0.24); gena, minimum W—0.22 (0.21–0.23). Labium total L—1.11 (1.08–1.12). Antenna. Segment I, L—0.24 (0.24–0.27); segment II, L—0.55 (0.53–0.57), segment III, L—0.47 (0.44–0.47), segment IV, L—0.38 (0.37–0.41), segment II, basal W—0.04 (0.04), segment II, distal W—0.05 (0.05). Pronotum. Total L (median)—0.91 (0.89–0.94); collum, L (median)—0.19 (0.19–0.22), maximum W—0.49 (0.46–0.51); midlobe, L (median)—0.50 (0.48–0.51), midlobe, W (maximum)—0.87 (0.83–0.89); hindlobe, L (maximum)—0.36 (0.34–0.39), hindlobe, L (median)—0.29 (0.25–0.29); hindlobe, W (maximum)—0.99 (0.93–1.06). Foreleg. Femur, L—1.00 (0.96–1.10), femur, maximum W—0.37 (0.34–0.37); tibia, L—0.93 (0.85–1.00), tibia, maximum W—0.33 (0.30–0.34).

Colouration. Strikingly variable, from uniformly yellowish-brown to dark brown, pronotum in some specimens very dark brown; antennae and legs always paler than rest of the body.

Texture. Abdomen matt, rest of body semi-lustrous, all body parts finely rugulose.

Vestiture. All body surfaces, including fore-wing veins densely covered with whitish semi-erect to erect setae. Vestiture on dorsal and lateral surfaces of head and on ventral surface of posterior lobe of head directed anterad, setae on ventral surface of anterior lobe of head outstanding, and diversely directed. Postero-ventral surfaces of forecoxae and foretrochanters each with a group of numerous distinct setae. Occurence of tr-setae (not studied in detail): dorsum and venter of head, ventral surface of labium; a few on lateral parts of pronotum, postero-ventral surface of foretrochanters, dorsal, posterior and ventral areas of forefemora, postero-ventral surface of foretibiae, a few on dorsal and ventral surfaces of mid- and hindfemora, dorsal surfaces of mid- and hindtibiae and tarsi.

Structure. Head ( Figs. 1–5 ). Slightly longer than pronotum ( Fig. 1 ). Anterior lobe elongate, ratio length of gena to its minimum width 1.0. Eyes small, dorsal ocular index 4.6. Ratio distance eye - apex of antennifer to length of eye 2.05. Post-ocular part of anterior lobe strikingly long, its lateral margins concave in dorsal view. Constriction between anterior and posterior cephalic lobes deep, conspicuous. Posterior lobe slightly transverse, without median impression ( Fig. 2 ), ratio length to maximum width 0.85. Ocelli small, situated antero-laterally. Posteriormost part of lateral surfaces of posterior lobe with convex, narrow area without vestiture and with numerous non-setigerous granules ( Figs. 4–5 ). Posterior lobe meeting the neck in a simple, straight sulcus and at an obtuse angle ( Fig. 4 ). Antennae shorter than head and pronotum together (ratio 0.8), antennal formula (longest segment first) II, III, IV, I. Ratio basal width of segment II to its distal width 0.8.

Labium long, slender. Segment III three times longer than segment IV. Labial formula (longest segment first) III, II = IV, I.

Pronotum ( Fig. 1 ). Collum with a shallow triangular median impression, reaching to one-third of collum length, posterior margin convex, precollum well developed, densely and coarsely granulose, contrasting by its sparse granulosity to the rest of the collum. Impression between collum and midlobe very deep and narrow, markedly delimited. Midlobe robust, long, its lateral margins convex, nearly semi-circular, widest approximately in the middle, ratio width to median length 1.7. Midlobe with deep median groove, widening only slightly caudad, shallowly terminating in 4/5 of midlobe length. Posterior margin of midlobe convex, laterally with very shallow, ill-defined impressions. Deep, conspicuous pronotal pits situated at one-third of length of midlobe, much closer to lateral margin of the midlobe than to linear groove. Two inconspicuous, very shallow pits situated close to linear (longitudinal) groove, either side of mid-line, half-way along midlobe of pronotum. Posterior lobe large, lateral margins only slightly convex, irregurarly rounded, in the proximal half sub-parallel, widest anteriorly. Posterior margin slightly convex. Ratio width of posterior lobe to its median length 3.4.

Forelegs ( Figs. 7–8 ). Forefemora 2.7 times as long as wide, widest in the middle. Foretibiae 2.8 times as long as wide, apex of foretibia protruding as a conspicuous process. Apicitibial armature formed by seven spiniform setae ( Fig. 8 ), three ventral (middle seta much longer, directed towards tarsus, anterior and posterior setae straight, shorter), two subventral and two short, robust dorsal on upper-most part of the tibial process. Bristle comb consisting of approximately 40 setae. Foretarsus with armature consisting of four spiniform setae, two very long, proximal setae of the same length and shape, reaching to the apex of two distal, shorter and stouter spiniform setae of the same length and shape. Apical section of ventral surface of foretarsus with group of seven long setae, situated between the spiniform setae of the foretarsal armature. Posterior claw of posttarsus short, two-thirds the length of the anterior claw.

Mid- and hindlegs. Hindfemora robust, nearly twice as wide as middle femora, claws isomorphic. Apex of mid- and hindtibiae with two apical combs, the anterior comb consisting of 12 setae on the mid- and 10 setae on the hindtibia; the posterior comb consisting of 12 setae on the middle- and 16 setae on the hind tibia.

Etymology. Patronym, named after our colleague and friend, Eric Guilbert, the eminent student of the Tingidae .

Micro-habitat and collecting method. All specimens (both adults and larvae) were collected by sifting of—and subsequent extraction from in Winkler apparatus - leaf litter in rain forest of central (Ambohitantely Special Reserve) and eastern Madagascar (Andasibe-Mantadia National Park).

Distribution. Central and Eastern Madagascar.

Differential diagnosis. Proboscidopirates ericguilberti sp. nov. differs from all other Proboscidopirates species in having only a strikingly transverse and short posterior lobe of the head ( Figs. 1–2 ), from P. griveaudi Villiers, 1958 , P. robinsoni Villiers, 1958 , P. attenuatus Villiers, 1958 , P. vadoni Villiers, 1969 , P. b rev i ce p s Villiers, 1969 and P. curticornis Villiers, 1969 by the absence of the median linear impression on the dorsum of the posterior lobe of head (median impression present in the above-mentioned species) and from P. rugulosus sp. nov. by the much finer and sparser rugulosity of head and thorax ( Figs. 1– 5 ), ( P. rugulosus has conspicuous granules).

Figures

FIGURES 1 – 8. Proboscidopirates ericguilberti sp. nov. Baňař & Štys, female paratype, (Andasibe-Mantadia NP); 1, head and pronotum, dorsal view; 2, head, dorsal view; 3, head, ventral view; 4, base of posterior lobe of head, dorsal view; 5, head, lateral view; 6, thorax, ventral view; 7, right foreleg, anterior view; 8, foretibial armature, anterior view. Scale bars in mm.