Pectiniunguis roigi Pereira, Foddai & Minelli, 2001

Pereira, Luis Alberto, 2010, Redescription Of Pectiniunguis Gaigei (Chamberlin, 1921) From Guyana, With New Distributional Data And Complementary Descriptive Notes On Similar Neotropical Species (Chilopoda: Geophilomorpha: Schendylidae), Papéis Avulsos de Zoologia 50 (20), pp. 297-321 : 319

Pectiniunguis roigi Pereira, Foddai & Minelli, 2001

( Figs. 83-94 )

Pectiniunguis roigi Pereira, Foddai & Minelli, 2001:144-147 ; Foddai et al., 2002:473.

Diagnosis: Similar to P. gaigei , P. geayi , and P. ducalis (cf. Table 1), from which it is differentiated by the following unique traits (characters for P. gaigei , P. geayi , and P. ducalis are given in parentheses): ratio length of apical specialized sensilla/length of claviform sensilla on a.a. XIV, 2.0: 1 (0.5-1.0: 1); forcipular trochanteropraefemur wider than long, with ratio greatest length/greatest width, ca. 0.94: 1 (longer than wide, with ratio greatest length/greatest width ca. 1.30: 1; ca. 1.40: 1; ca. 1.47: 1); forcipular ungulum unusually curved inwards, Figs. 88, 89 (not so, Figs. 18 , 57 , 74 ).

Morphological traits in Table 1 differentiate P. roigi from P. gaigei , P. geayi , and P. ducalis .

Type material examined: Holotype male, 57 leg-bearing segments, body length 30.5 mm, from ECUADOR: Napo: Limoncocha (0º24´S, 76º38´W), 7 April 1984, A. Roig Alsina leg. ( MLP).

Remarks: The following complementary information can be given on the male holotype: length of cephalic shield: 0.73 mm; width of forcipular coxosternum: 0.75 mm; ratio greatest length/greatest width of forcipular trochanteropraefemur, ca. 0.94: 1; forcipular ungulum unusually curved inwards ( Figs. 88, 89 ).

Type locality: ECUADOR: Napo: Limoncocha .

Known range: Only known from the type locality.

Figures

FIGURES 83‑89: Pectiniunguis roigi Pereira, Foddai & Minelli, 2001 (male holotype; ECUADOR: Napo: Limoncocha): (83) Right antenna, ventral; (84) Right a.a. XIV, dorsal; (85) Detail of apex of left a.a. XIV, ventral (a: claviform sensilla, b: apical specialized sensilla; c: small seta); (86) Labrum (form of central arc altered by squashing); (87) Detail of posterior external region of right second maxilla, ventral; (88) Forcipular segment, ventral, (89) Detail of calyx and conduct of poison gland in right forcipular telopodite, ventral. (After Pereira et al., 2001). Scale bars: 0.3 mm (83, 88); 0.1 mm (84, 86, 87); 0.03 mm (85); 0.2 mm (89).

FIGURES 90‑96: (90-94): Pectiniunguis roigi Pereira, Foddai & Minelli, 2001 (male holotype; ECUADOR: Napo: Limoncocha): (90) Last leg-bearing segment and terminal segments, dorsal (left leg is anomalous having the telopodite of only five articles); (91) Last legbearing segment and terminal segments, ventral; (92) Left coxal organs, ventral (a: individual channel; b: mucous layer; (external contour of lobes, not delineated)); (93) Detail of distal end of last podomere of right last leg, ventral; (94) Penis, dorsal. (After Pereira et al., 2001). (95): Pectiniunguis chazaliei (Brölemann, 1900) (male holotype; COLOMBIA: Gairaca: Santa Marta): Claw and parunguis of left leg XXX, postero-ventral. (After Pereira et al., 2001). (96): Pectiniunguis bollmani Pereira, Minelli & Foddai, 1999 (male holotype; VENEZUELA: Falcón state: Morrocoy National Park: Cayo Sombrero): Right coxal organs, ventral (a: lobe). (After Pereira et al., 1999). Scale bars: 0.3 mm (90, 91); 0.1 mm (92, 94); 0.05 mm (93, 95); 0.4 mm (96).

FIGURES 13‑21: Pectiniunguis gaigei (Chamberlin, 1921), (female paratype MCZ TC-161; GUYANA: Dunoon), (Reference Adenoschendyla gaigei): (13) Left first maxilla, dorsal; (14) Detail of coxosternum and pleurites of right second maxilla, ventral; (15) Detail of coxosternum and pleurites of left second maxilla, dorsal; (16) Telopodite of left second maxilla, dorsal; (17) Claw of telopodite of right second maxilla, ventral; (18) Forcipular segment, ventral; (19) Detail of conduct and calyx of poison gland, in left forcipular telopodite, dorsal; (20) Right leg I, ventral; (21) Claw of right leg I, ventral. Scale bars: 0.2 mm (13); 0.3 mm (14, 15, 19, 20); 0.15 mm (16); 0.1 mm (17); 0.4 mm (18); 0.03 mm (21).

FIGURES 54‑59: Pectiniunguis geayi (Brölemann & Ribaut, 1911), (male (specimen A); BRAZIL: Amazonas: Lago Janauarí): (54) Right antenna, ventral; (55) Labrum; (56) First and second maxillae, ventral; (57) Forcipular segment, ventral; (58) Detail of calyx and conduct of poison gland in left forcipular telopodite, ventral; (59) Last leg-bearing segment and terminal segments, dorsal. (After Pereira et al., 2000). Scale bars: 0.3 mm (54, 57, 59); 0.1 mm (55); 0.2 mm (56, 58).

FIGURES 69‑75: Pectiniunguis ducalis Pereira, Minelli & Barbieri, 1995, (male holotype; BRAZIL: Amazonas: Reserva Florestal A. Ducke): (69) Left a.a. I-VII, ventral; (70) Left a.a. VIII-XIV, ventral; (71) Detail of distal end of right a.a. XIV, dorsal (a: claviform sensilla, b: apical specialized sensilla); (72) Labrum; (73) Detail of posterior external region of right second maxilla, ventral; (74) Forcipular segment, ventral; (75) Detail of calyx and conduct of poison gland in left forcipular telopodite, ventral. (After Pereira et al., 1995). Scale bars: 0.4 mm (69, 70); 0.05 mm (71); 0.2 mm (72, 75); 0.1 mm (73); 0.6 mm (74).