8 research outputs found
Sistemi di produzione e consumi alimentari: l’evoluzione del settore agroalimentare in un mondo che cambia
No full textUptake and agronomic efficiency of nitrogen in winter barley and winter wheat.
No full textNitrogen (N) uptake and utilization efficiency (NUtE) of the high-yielding cultivars ‘Gemini’ of wheat and ‘Jaidor’of barley were tested with N rates of 0, 140 and 210 kg ha−1 and 0, 80 and 140 kg ha−1, respectively. The differentgrain yield response was linked to their difference in nitrogen uptake and utilization efficiency. The highest yield inbarley was recorded with 80 kg N ha−1 and in wheat with 210 kg N ha−1. Nitrogen application affected theaccumulation of biomass up to heading in wheat and barley. While N uptake during grain filling did not show anycorrelation to N applied in barley, it was markedly correlated in wheat. At N0 and N140 N applied, barley exhibiteda 32 and 8% higher NUtE than wheat. N agronomic efficiency, a parameter representing the ability of the plant toincrease yield in response to N applied, was similar in barley and wheat (8.7 and 9.2 kg kg−1 of N applied,respectively), suggesting that both species respond equally to nitrogen fertilization. Nevertheless, due to its lowerNUtE, wheat requires high N fertilization to optimize yields; by contrast, in barley the lower N rate needed to achievehighest yields enables this crop to perform better in low-input conditions. As a results, the reduced N requirementsfor barley highest yield associated with a better RF value (apparent N fertilizer recovery of 63% in barley and 49% inwheat at N140) makes barley crop a better choice to reduce ground-water pollution due to nitrate leaching in winterand early spring
Le colture orticole e da frutto, in pieno campo e protette
No full textLombard horticultural productions contribute only for a few percentage of national production. Despite this small numbers, the Lombardia has a wide range of high value and quality productions and is a leader in the processing and marketing of high value-added typical product
Le colture intensive
No full textLombard horticultural productions compete for 3% of national production. Despite the small numbers, the Lombardia has a wide range of high value and quality productions and is a leader in the processing and marketing of high value-added product
Relationship of compliance to ergonomic training and work-related musculoskeletal complaints among office workers of Nalco Philippines Inc.
No full textThe study utilized a correlational type of research design using convenience sampling. A total of 50 office workers were included in the population but only 44 agreed to participate in the study. A questionnaire (M-NMQ) and Researcher Made Observation Checklist were used as data gathering tools. Statistical techniques used were Kendall Tau-B correlation coefficient to determine the relationship of office workers in NPI with work-related musculoskeletal complaints as to monitor, keyboard, mouse, chair, level of object, lighting, temperature and rest break and Fishers’ Exact Test to determine the correlation between office workers in NPI with compliance to ergonomic training and work-related musculoskeletal complaints. Based from the results of this study, compliance of the office workers of NPI to the given training is not a sufficient basis alone to determine the relationship between the compliance and work-related musculoskeletal complaints. The activities outside work can also be a major factor in the development of work-related musculoskeletal complaints. This includes the household chores, travelling, driving, sports, outing, dancing, jogging, going to the gym and gardening
Cheiracanthium kakumense Lotz, 2015, sp. nov.
No full textCheiracanthium kakumense sp. nov. Figs 22–27 Type material. Holotype ♀ and paratype ♂: GHANA: Kakum forest, 05º 20 ’N, 01º 23 ’W, 23.XI. 2005, R. Jocqué, D. de Bakker & L. Baert (MRAC 217300); Additional paratypes: 7 ♂ 5 ♀, same locality and collectors as holotype, 8 to 25.XI. 2005 (MRAC 217162, 218321, 218322, 218323, 218324, 218328, 218330); 1 ♂, IVORY COAST: Appouesso, FC Bossematié, 06º 35 ’N, 03º 28 ’W, 16.XI. 1995, R. Jocqué (MRAC 202672); 2 ♂, Taï forest, Ecological Research Station, 05º 50 ’N, 07º 21 ’W, various collectors, 20.II. 2010 (MRAC 230297, 230303); 2 ♂, Taï forest, 05º 52 ’N, 07º 52 ’W, D. vanden Spiegel & A. Kablan, 1.IX & 12.X. 2010 (MRAC 233433, 233451); 6 ♂ DEMOCRATIC REPUBLIC OF CONGO: Mayombe, Lower Congo, Luki Forest Reserve, 05º 38 ’S, 13 º04’E, various collectors, various dates (XI. 2006, X–XI. 2007) (MRAC 220849, 222162, 223025, 223656, 223764, 223822). Etymology. The species name is taken from the type locality. Diagnosis. C. kakumense sp. nov. females are similar to C. halophilum Schmidt & Piepho, 1994 (see Lotz, 2007 a: figs 47–48), C. ghanaense sp. nov. (Fig. 12) and C. mayombense sp. nov. (Fig. 33) in the long spiralled copulatory ducts, but differs from these species by the anterior proceeding part of the copulatory ducts being without a spiral (Fig. 24). Males are similar to C. falcis sp. nov. (Figs 5–6) in the hooked shape of the TA, but are differentiated by the more beak-like shape of the TA apex and the shorter, thicker, shape of the ventral RTA (Figs 26–27). Description. Female: (n = 6): TL = 6.25 (5.1–7.2); CL = 2.65 (2.0– 2.9); CW = 1.97 (1.6–2.1); OAL = 0.47 (0.4–0.5); OAW = 1.17 (0.9–1.3); CLL = 0.10 (0.08–0.10). Chelicerae: robust with long fangs; fang furrow with six teeth of unequal size, PMT:RMT = 3: 3 (Fig. 22). Measurements: AME–AME 0.20; AME–ALE 0.20; AME diameter 0.15; PME–PME 0.25; PME–PLE 0.30; PME diameter 0.15; MOQAW 0.50; MOQPW 0.55; CI (CL/ CW) 1.35; LL:CL 5.78; STL 1.3; STW 1.1. Leg measurements: I— 3.9 + 1.2 +4.0+ 4.6 + 1.9 = 15.6; II— 2.5 +1.0+ 2.1 + 2.5 +1.0 = 9.1; III— 1.8 + 0.8 + 1.3 + 1.9 + 0.8 = 6.6; IV— 2.7 +1.0+ 2.1 +3.0+1.0 = 9.8; Palp— 1.2 + 0.5 + 0.7 + 1.1 = 3.5. Leg spines: I 0-1 p- 1 p, 0- 2 v-0, 2v- 0- 1 v; II 0-1 p- 1 p 1 r, 0- 2 v- 1 p, 2 v- 0- 1 v; III 0-1 p 1 r- 1 p 1 r, 0- 0-1 p 1 r, 2 v 1 p 1 r- 1 v 1 p 1 r- 3 v 1 p 1 r; IV 0- 0-1 p 1 r, 0- 0-1 r, 2 v 1 p 1 r- 2 v 1 p 1 r- 3 v 1 p 1 r. Abdomen: creamy-yellow with a faint heartmark. Epigynum (Figs 23–24): depression wider than long, circular; copulatory openings situated in posterior sides of depression; internally, copulatory ducts extend laterally, then anteriorly and then loop posteriorly to end anterio-laterally in spermathecae; fertilization tubes enter spermathecae posterior-medially. Male: (n = 10): TL = 8.09 (5.8–10.7); CL = 3.62 (2.7–4.7); CW = 2.62 (1.9–3.4); OAL = 0.58 (0.50–0.65); OAW = 1.48 (1.0– 1.9); CLL = 0.07 (0.05–0.10). Chelicerae: similar to female, with PMT:RMT = 3: 3 (Fig. 25). Measurements: AME–AME 0.20; AME–ALE 0.15; AME diameter 0.20; PME–PME 0.25; PME–PLE 0.25; PME diameter 0.20; MOQAW 0.60; MOQPW 0.65; CI (CL/CW) 1.28; LL:CL 8.22; STL 1.6; STW 1.3. Leg measurements: I— 6.6 + 1.5 + 7.4 + 7.9 + 2.9 = 26.3; II— 4.4 + 1.3 + 4.4 + 4.9 + 1.4 = 16.4; III— 3.1 + 1.2 + 2.6 + 3.8 +1.0 = 11.7; IV— 4.7 + 1.3 + 4.3 + 5.6 + 1.4 = 17.3; Palp— 1.8 + 0.6 + 0.9 + 1.8 = 5.1. Leg spines: I 0-1 p 1 r- 1 p 1 r, 2 v- 8 v- 0, 2v- 2 v- 1 v; II 0-1 p 1 r- 1 p 1 r, 2 v- 4 v 2 p-0, 2v 1 p- 2 v 1 p 1 r- 1 v; III 0-1 p 1 r- 1 p 1 r, 2 v 1 p 1 r- 1 p 1 r-0, 2v 1 p 1 r- 3 v 1 p 1 r- 3 v 1 p 1 r; IV 1 r- 1 p 1 r- 1 p 1 r, 2 v- 1 v 1 p 1 r-0, 2v 1 p 1 r- 2 v 1 p 1 r- 3 v 1 p 1 r. Abdomen: similar to female, but more elongate. Palp (Figs 26– 27): cymbium elongate, twice tibia length (without RTA), with a straight proximally directed apophysis with sharp apex; tibia with DTA and RTA; DTA thin, RTA broad with double apex; TA sclerotized, long, with beak-like apex; EM long, almost encircling tegulum, ending at CON apex; CON not sclerotized but distinct. Distribution. Known from several localities in Ghana, Ivory Coast and D.R. Congo (Fig. 53). Habitat. Forest.Published as part of Lotz, L. N., 2015, New Species of the Spider Genus Cheiracanthium from Continental Africa (Araneae: Eutichuridae), pp. 321-336 in Zootaxa 3973 (2) on pages 327-328, DOI: 10.11646/zootaxa.3973.2.7, http://zenodo.org/record/23669
Cheiracanthium kakumense Lotz, 2015, sp. nov.
No full text<i>Cheiracanthium kakumense</i> sp. nov. <p>Figs 22–27</p> <p> <b>Type material.</b> Holotype ♀ and paratype ♂: GHANA: Kakum forest, 05º20’N, 01º23’W, 23.XI.2005, R. Jocqué, D. de Bakker & L. Baert (MRAC 217300); Additional paratypes: 7♂ 5♀, same locality and collectors as holotype, 8 to 25.XI.2005 (MRAC 217162, 218321, 218322, 218323, 218324, 218328, 218330); 1♂, IVORY COAST: Appouesso, FC Bossematié, 06º35’N, 03º28’W, 16.XI.1995, R. Jocqué (MRAC 202672); 2♂, Taï forest, Ecological Research Station, 05º50’N, 07º21’W, various collectors, 20.II.2010 (MRAC 230297, 230303); 2♂, Taï forest, 05º52’N, 07º52’W, D. vanden Spiegel & A. Kablan, 1.IX & 12.X.2010 (MRAC 233433, 233451); 6♂ DEMOCRATIC REPUBLIC OF CONGO: Mayombe, Lower Congo, Luki Forest Reserve, 05º38’S, 13º04’E, various collectors, various dates (XI.2006, X–XI.2007) (MRAC 220849, 222162, 223025, 223656, 223764, 223822).</p> <p> <b>Etymology.</b> The species name is taken from the type locality.</p> <p> <b>Diagnosis.</b> <i>C. kakumense</i> <b>sp. nov.</b> females are similar to <i>C. halophilum</i> Schmidt & Piepho, 1994 (see Lotz, 2007a: figs 47–48), <i>C. ghanaense</i> <b>sp. nov</b>. (Fig. 12) and <i>C. mayombense</i> <b>sp. nov</b>. (Fig. 33) in the long spiralled copulatory ducts, but differs from these species by the anterior proceeding part of the copulatory ducts being without a spiral (Fig. 24). Males are similar to <i>C. falcis</i> <b>sp. nov.</b> (Figs 5–6) in the hooked shape of the TA, but are differentiated by the more beak-like shape of the TA apex and the shorter, thicker, shape of the ventral RTA (Figs 26–27).</p> <p> <b>Description.</b> <i>Female</i>: (n = 6): TL = 6.25 (5.1–7.2); CL = 2.65 (2.0–2.9); CW = 1.97 (1.6–2.1); OAL = 0.47 (0.4–0.5); OAW = 1.17 (0.9–1.3); CLL = 0.10 (0.08–0.10). Chelicerae: robust with long fangs; fang furrow with six teeth of unequal size, PMT:RMT = 3:3 (Fig. 22). Measurements: AME–AME 0.20; AME–ALE 0.20; AME diameter 0.15; PME–PME 0.25; PME–PLE 0.30; PME diameter 0.15; MOQAW 0.50; MOQPW 0.55; CI (CL/ CW) 1.35; LL:CL 5.78; STL 1.3; STW 1.1. Leg measurements: I—3.9+1.2+4.0+4.6+1.9 = 15.6; II— 2.5+1.0+2.1+2.5+1.0 = 9.1; III—1.8+0.8+1.3+1.9+0.8 = 6.6; IV—2.7+1.0+2.1+3.0+1.0 = 9.8; Palp— 1.2+0.5+0.7+1.1 = 3.5. Leg spines: I 0-1p-1p, 0- 2 v-0, 2v- 0- 1 v; II 0-1p-1p1r, 0- 2 v-1p, 2v- 0- 1 v; III 0-1p1r-1p1r, 0- 0-1p1r, 2v 1p1r- 1v 1p1r- 3v 1p1r; IV 0-0-1p1r, 0-0-1r, 2v 1p1r- 2v 1p1r- 3v 1p1r. Abdomen: creamy-yellow with a faint heartmark. Epigynum (Figs 23–24): depression wider than long, circular; copulatory openings situated in posterior sides of depression; internally, copulatory ducts extend laterally, then anteriorly and then loop posteriorly to end anterio-laterally in spermathecae; fertilization tubes enter spermathecae posterior-medially.</p> <p> <i>Male</i>: (n = 10): TL = 8.09 (5.8–10.7); CL = 3.62 (2.7–4.7); CW = 2.62 (1.9–3.4); OAL = 0.58 (0.50–0.65); OAW = 1.48 (1.0–1.9); CLL = 0.07 (0.05–0.10). Chelicerae: similar to female, with PMT:RMT = 3:3 (Fig. 25). Measurements: AME–AME 0.20; AME–ALE 0.15; AME diameter 0.20; PME–PME 0.25; PME–PLE 0.25; PME diameter 0.20; MOQAW 0.60; MOQPW 0.65; CI (CL/CW) 1.28; LL:CL 8.22; STL 1.6; STW 1.3. Leg measurements: I—6.6+1.5+7.4+7.9+2.9 = 26.3; II—4.4+1.3+4.4+4.9+1.4 = 16.4; III—3.1+1.2+2.6+3.8+1.0 = 11.7; IV—4.7+1.3+4.3+5.6+1.4 = 17.3; Palp—1.8+0.6+0.9+1.8 = 5.1. Leg spines: I 0-1p1r-1p1r, 2v-8v- 0, 2v- 2v- 1v; II 0-1p1r-1p1r, 2v-4 v2 p-0, 2v 1p- 2v 1p1r- 1v; III 0-1p1r-1p1r, 2v 1p1r-1p1r-0, 2v 1p1r- 3v 1p1r- 3v 1p1r; IV 1 r- 1p1r-1p1r, 2v-1 v1 p1r-0, 2v 1p1r- 2v 1p1r- 3v 1p1r. Abdomen: similar to female, but more elongate. Palp (Figs 26– 27): cymbium elongate, twice tibia length (without RTA), with a straight proximally directed apophysis with sharp apex; tibia with DTA and RTA; DTA thin, RTA broad with double apex; TA sclerotized, long, with beak-like apex; EM long, almost encircling tegulum, ending at CON apex; CON not sclerotized but distinct.</p> <p> <b>Distribution.</b> Known from several localities in Ghana, Ivory Coast and D.R. Congo (Fig. 53).</p> <p> <b>Habitat.</b> Forest.</p>Published as part of <i>Lotz, L. N., 2015, New Species of the Spider Genus Cheiracanthium from Continental Africa (Araneae: Eutichuridae), pp. 321-336 in Zootaxa 3973 (2)</i> on pages 327-328, DOI: 10.11646/zootaxa.3973.2.7, <a href="http://zenodo.org/record/236698">http://zenodo.org/record/236698</a>
Cacopsylla exima MA
No full text<i>Cacopsylla exima</i> (Loginova, 1976) <p> <b>Material examined.</b> <b>Tenerife</b>: 1 ♀, parque rural de Anaga, Chinobre, 900 m alt., 5.iii.1990 (B. Merz) (MHNG, dry mounted); 1 ♂, 1 ♀, parque rural de Anaga, Lomo de las Bodegas, 500 m alt., 7.v.1993 (C. Lienhard) (NHMB, dry mount); 4 ♂, 5 ♀, same data but (MHNG, dry mounted); 1 ♀, north of La Laguna, Monte de Las Mercedes, 760 m alt., 7.v.1993 (C. Lienhard) (MHNG, dry mount); 1 ♂, 2 ♀, TF 12, north of La Laguna, Monte de Las Mercedes, 800 m alt., 26.ii.1995 (D. Burckhardt) (NHMB, dry mounted); 1 ♂, Anaga park, direction to El Bailadero, 28.5482 N, 16.2047 W, 618 m alt., 23.iii.2018, <i>Erica arborea</i> (L. Serbina & M. Štarha) (MMBC, 96% ethanol); 1 ♂, same but Anaga park, nr Camino Jardina, 28.5482 N, 16.2053 W, 624 m alt.; 2 ♂, same but Anaga park, direction to Roque Chinobre, TF-123, 28.5552 N, 16.1797 W, 770 m alt., 24.iii.2018.</p> <p> <b>Description. Adult.</b> Loginova (1976).</p> <p> <b>Fifth-instar immature</b> Unknown.</p> <p> <b>Distribution CI.</b> Tenerife (Loginova 1976).</p> <p> <b>Host plant CI.</b> No information. It is likely that the host plant is the same as in the Madeira Islands, the Macaronesian endemic tree <i>Rhamnus glandulosa</i> (Rhamnaceae) (Aguiar & Martin (2001).</p> <p> <b> * <i>Cacopsylla falcicauda</i> Bastin, Burckhardt & Ouvrard sp. nov.</b> </p> <p>(Figs 63–66, 150–156, 256–258)</p> <p>urn:lsid:zoobank.org:act: BE18D768-688B-45B0-9180-5E51393F6511</p> <p> <b>Material examined.</b> Holotype ♂, <b>La Gomera</b>: zona recreativa Laguna Grande, 31.vii.2000, <i>Rhamnus glandulosa</i> (D. Percy) (NHMB, dry mounted).</p> <p> Paratypes. <b>La Gomera</b>: 2 ♂, 4 ♀, same data as holotype but 26.v.1998, <i>R. glandulosa</i> (D. Percy) (NHMB, dry mounted); 10 ♂, 3 ♀, same data as holotype (NHMB, dry mounted); 1 ♀, same data but 28.1276 N, 17.2572 W, 1250 m alt., 14.i.2022, <i>R. glandulosa</i> (S. Bastin) (MUSA, 70% ethanol?); 2 ♂, 2 ♀, 1 immature, same data but 19.vi.2022, <i>R. glandulosa</i> (S. Bastin) (SBPC, slide mounted, 70% ethanol); 2 ♂, Mirador el Bailadero, 28.1228 N, 17.2082 W, 980 m alt., 19.vi.2022, <i>R. glandulos</i> a (S. Bastin) (ICIA, slide mounted).</p> <p> <b>Description. Adult.</b> <i>Colouration</i>. General body colour black. Vertex white with brown yellowish spots, genae white, genal processes brown yellowish. Antenna brown yellowish with segment 1 dark brown with black base, segments 3–8 each with black apex, and entire segments 9 and 10 black. Thoracic dorsum black with 6 white and brown longitudinal stripes and 3 white spots: 2 on mesoscutellum and 1 on metascutellum. Forewing yellowish with a black spot on apical third of clavus, veins brown yellowish and pterostigma brown yellowish. Abdominal sclerites black and intersegmental membranes red in mature specimens but entirely green in teneral specimens. Male proctiger red with black apex and base, paramere brown yellowish with black spot and black apex, subgenital plate black. Female terminalia black.</p> <p> <i>Structure</i>. Body length 1.4–1.9 mm. Head (Fig. 150), in lateral view, inclined at almost 90º from longitudinal body axis; in dorsal view, slightly wider than thorax. Vertex (Fig. 151) subtriangular, 0.5 times as long as broad, covered with fine microsculpture and short setae; coronal suture fully developed. Genal processes (Fig. 150) 0.8–0.9 times as long as vertex, conical, evenly narrowing to the apex, with interior margin almost straight and exterior margin concave, apex subacute, covered with moderately long setae dorsally, and with long setae ventrally.Antenna (Figs 152, 153) 1.5–1.6 times as long as head width, segment 10 with 2 subequal terminal setae. Meracanthus of metacoxa large, horn-shaped and subacute. Metatibia 0.6–0.7 times as long as head width, with moderately large genual spine, with 1+3+1 apical spurs. Metabasitarsus with 2 black lateral spurs. Forewing (Fig. 154) elongate oval, 3.0–3.4 times as long as head width, 2.3–2.4 times as long as wide, widest in apical third, broadly rounded apically; vein C+Sc slightly convex; costal break present; pterostigma wide, at base about as wide as adjacent part of cell r 1, ending at bifurcation of vein M; vein Rs long, slightly sinuate; vein M slightly arched, 2 times longer than vein M 1+2; m 1 cell value 1.6–1.8; vein Cu 1a, arched, 1.3–1.4 times longer than vein Cu 1,; vein Cu 1b short, slightly rounded; cu 1 cell value 3.0–3.3; surface spinules (Fig. 155) present in all cells, moderately dense, irregularly spaced, leaving spinule-free stripes along the veins. Male terminalia as in Figs 63–65, 156. Proctiger slender, 0.5 times as long as head width, tubular, widest in basal third, anterior margin slightly convex, covered with moderately long setae, except at base. Paramere lamellar, 0.9–1.0 times as long as proctiger, slender, in lateral view narrowing apically; apex forming a strongly sclerotised small forward-directed tooth; anterior margin almost straight, with a small antero-apical lobe; inner face covered with moderately long setae in apical two thirds, those along anterior margin thicker than the others, inner face with small setae in apical third, with thick and moderately long setae along anterior margin and subapically, and a line of black stout spurs close to posterior margin; in posterior view, parameres thick, moderately arched with apices curving mediad, with a line of black stout spurs along medial margin. Apical segment of aedeagus 0.8–0.9 longer than paramere, apical dilatation short and slightly oval; sclerotised end tube of ductus ejaculatorius moderately long, curved. Subgenital plate relatively large, almost as long as high, in lateral view broadly subtriangular, sparsely covered with short setae. Female terminalia very long and slender (Fig. 66). Proctiger 1.4 times as long as head width, a little longer than subgenital plate, with dorsal margin concave, blunt apically, bearing moderately long setae in basal half, a group of long setae in apical two thirds, many dense conate setae in apical half, and a few short setae apically. Subgenital plate very long, pointed apically, covered with short and moderately long setae in apical third. Valvula ventralis with one ventral tooth.</p> <p>Measurements (in mm) (3 ♂, 1 ♀). Head width ♂ 0.65–0.67, ♀ 0.69; vertex length ♂ 0.17–0.18, ♀ 0.19; vertex width ♂ 0.37–0.38, ♀ 0.41; antenna length ♂ 0.96–1.05; metatibia length ♂ 0.43–0.44, ♀ 0.45; forewing length ♂ 1.97–2.12, ♀ 2.33; forewing width ♂ 0.82–0. 91, ♀ 1.01; male proctiger length 0.34–0.36; paramere length 0.33; distal segment of aedeagus length 0.28–0.31; female proctiger length 0.94; female anal ring length 0.23.</p> <p> <b>Fifth-instar immature.</b> <i>Colouration</i> of slide-mounted material. Sclerites dark brown, membranes colourless. Apices of antennal segments 5 and 6 as well as entire 7 dark brown or almost black. Apical half of tibiotarsi and tarsi dark brown to almost black.</p> <p> <i>Structure</i>. Conforming to the generic description of Ossiannilsson (1992). Body 1.7 times as long as wide; irregularly beset with scattered short simple setae dorsally. Head with 2 long indistinctly capitate setae anteriorly. Antenna 1.1 times as long as forewing pad; segments 4–6 together 0.9 times as long as segment 7; segments 3 and 5 each bearing a simple seta which is slightly longer than diameter of segment. Forewing pad bearing 16–18 short or moderately long capitate marginal setae, glabrous dorsally; hindwing pad with 4 short and long marginal capitate setae. Caudal plate 0.6 times as long as wide, bearing 3+3 marginal sectasetae; abdominal margin bearing 4–5 long and several short capitate setae (one side only); disk of caudal plate lacking long macroscopic setae. Outer circumanal ring heart-shaped, complete (closed) anteriorly; its length in longitudinal body axis 2.7 times its distance from caudal margin of caudal plate; consisting of a single row of narrowly oval pores.</p> <p>Measurements (in mm) (1 skin). Body length 1.6; length of forewing pad 0.60.</p> <p> <b>Etymology.</b> From Latin <i>falx</i>, <i>falcis</i> (a feminine noun) = a curved blade or sickle, and the noun <i>cauda</i> = tail, referring to the long, blade-like female terminalia.</p> <p> <b>Host plant CI.</b> <i>Rhamnus glandulosa</i></p> <p> <b>Distribution CI.</b> La Gomera.</p> <p> <b>Comments.</b> <i>Cacopsylla falcicauda</i> is morphologically similar to <i>C. exima</i> in the conical genal processes, the forewing and the male terminalia. The two species also share the same host plant, <i>Rhamnus glandulosa</i>. <i>Cacopsylla falcicauda</i> differs from <i>C. exima</i> in the forewing, with the vein Rs sinuate in apical half (almost straight in <i>C. exima</i>); in the paramere having an antero-apical lobe (lacking in <i>C. exima</i>); and in having fewer and more widely spaced black stout spurs along the posterior margin of the paramere (9–12 in <i>C. exima</i> versus 5–6 in <i>C. falcicauda</i>). The two species differ conspicuously in the shape and size of the female terminalia. In <i>C. falcicauda</i>, with longer female terminalia, the proctiger is more slender and longer than 0.9 mm, whereas in <i>C. exima</i> it is more massive and shorter than 0.8 mm.</p> <p> <b> * <i>Livilla monospermae</i> Hodkinson, 1990</b> </p> <p> <b>Material examined. La Palma</b>: 4 ♂, 4 ♀, Barranco de las Angustias, 18.v.1998, <i>Retama rhodorhizoides</i> (D. Percy) (NHMB, dry mounted).</p> <p> <b>Description. Adult.</b> Hodkinson (1990).</p> <p> <b>Fifth-instar immature</b> Percy (2003).</p> <p> <b>Distribution CI.</b> Tenerife (Hodkinson 1990; Percy 2003), El Hierro, La Palma, La Gomera (Percy 2003).</p> <p> <b>Host plant CI.</b> <i>Retama rhodorhizoides</i> (Fabaceae).</p>Published as part of <i>Bastin, Saskia, Burckhardt, Daniel, Reyes-Betancort, Alfredo, Hernández-Suárez, Estrella & Ouvrard, David, 2023, A review of the jumping plant-lice (Hemiptera: Psylloidea) of the Canary Islands, with descriptions of two new genera and sixteen new species, pp. 1-98 in Zootaxa 5313 (1)</i> on pages 41-43, DOI: 10.11646/zootaxa.5313.1.1, <a href="http://zenodo.org/record/8129996">http://zenodo.org/record/8129996</a>
