Calamincola lobatus Casto, 1977

Skoracki, Maciej, Sikora, Bozena & Spicer, Greg S., 2016, A review of the subfamily Picobiinae Johnston and Kethley, 1973 (Acariformes: Prostigmata: Syringophilidae), Zootaxa 4113 (1), pp. 1-95 : 9-12

Calamincola lobatus Casto, 1977

( Figs. 8–10 )

Cuculiphilus lobatus Casto, 1977: 172 , figs. 1–10. Types deposited in DBUT and USNM, not examined and needs confirmation. Material from type host species from USA and Mexico, examined.

Calamincola lobatus, Casto 1978: 158 (name preoc.); Skoracki et al. 2014a: 101.

Type host: Crotophaga sulcirostris Swainson ( Cuculiformes : Cuculidae ). Type locality: USA (Texas).

Redescription. FEMALE NPF (6 specimens from type host species). Gnathosoma . Infracapitulum and stylophore apunctate. Movable cheliceral digit with 3 teeth on distal tip, edentate on proximal end. Each medial and lateral branches of peritremes with weakly-marked borders between chambers. Idiosoma . Propodonotal shield divided into 2 punctate lateral shields and apunctate posteromedial shield. Propodonotal setae weakly beaded, other idiosomal setae smooth. Setae se situated anterior to c1. Setae f1 short, f2 medium-sized, setae h1 and h2 long. Setae f2 situated distinctly anterior to f1. Opisthonotal lobes bearing setae f1, h1, h2, ps1 and ps2. Genital setae hair-like, situated lateral to genito-anal opening and on level of setae ag3. Agenital and genital plates absent. Setae ag2 situated posterolateral to setae ag1. Coxal fields I–IV well sclerotised, apunctate. Legs. Apodemes I subparallel to weakly divergent. Paraxial claws of legs I and II larger than antaxial claws, claws of legs III and IV equal in size. Measurements. Total body length 1000–1570. Length of stylophore 420. Lengths of setae: vi 95, ve 235–240, si 315–320, se 500–525, c1 500–505, c2 435–450, d1 435–465, d2 505–535, e2 370–395, f1 80, f2 220, h1 765–800, h2 880, ag1 255, ag2 170, ag3 465. Length ratios of setae: vi: ve: si 1:2.5:2.9–3.3, d2: e2 1.3 –1.4:1, f1: f2 1:2.8, h1: h2 1:1, ps1: ps2 1:1, ag1:ag2:ag3 1.5:1:2.7, tc’III–IV: tc”III–IV 1:1.

FEMALE PF (4 specimens from type host species). Total body length 2,000 –2,600.

MALE (6 specimens from type host species). Gnathosoma . Infracapitulum and stylophore apunctate. Movable cheliceral digit with 8–12 teeth on distal tip. Each medial branch of peritremes with 2 distinct chambers becoming rugosely sclerotised with indistinct near connection with lateral chambers, each lateral branch with distinct 13–16 chambers. Stylophore constricted posteriorly. Propodonotal shield entire, rectangular in shape, punctate near bases of setae vi, ve and si, bearing all propodonotal setae except c2. Setae se located anterior to c1. Hysteronotal shield divided into 2 lateral sclerites bearing bases of setae d2 and large unpaired medial sclerite bearing bases of setae d1 and e2. Medial hysteronotal shield and pygidial shield not fused but in very close proximity. Agenital plate absent. Coxal fields I–IV well sclerotised, apunctate. Paraxial claws of legs I and II larger than antaxial claws I–II, claws of legs III and IV in same size. Measurements. Total body length 590–850. Length of stylophore 245. Lengths of setae: vi 55, ve 135, si 155, se 395, c1 400, c2 445, d1 240, d2 405, e2 170, f2 185, h2 660, ag1 215, ag2 265. Length ratios of setae: ve: si 1:2.3–2.5:2.5–2.8, d1: d2: e2 1.4:2.4:1, f2: e2 1:1, ps1: ps2 1:2, ag1: ag2 1:1.2, tc’III– IV: tc”III–IV 1:1.

Additional material. Eight females (NPF), 2 females (PF), 8 males from Crotophaga sulcirostris Swainson ( Cuculiformes : Cuculidae ), MEXICO: Veracruz, Los Tuxtlas, 15 May 2008, coll. S. V. Mironov & P. B. Klimov, all material in ZISP except 2 females (NPF), 2 females (PF), 2 males in AMU; 2 females (PF) from same host species, MEXICO: Jalisco, 10 October 1912, coll. Glueckert, all material in AMU.

Host range and distribution. Monoxenous species associated with Crotophaga sulcirostris Swainson ( Cuculiformes : Cuculidae ) in USA (Texas) ( Casto 1977; Skoracki et al. 2014a) and Mexico (present paper).

Figures

FIGURE 8. Calamincola lobatus Casto, 1977, female. A, dorsal view; B, ventral view.

FIGURE 9. Calamincola lobatus Casto, 1977, male. A, dorsal view; B, ventral view.

FIGURE 10. Calamincola lobatus Casto, 1977, female (A – K). A, gnathosoma in ventral view and dentate distal tip of movable cheliceral digits (arrow); B, proximal end of movable cheliceral digit; C, peritremes; D, opisthosoma in ventral view; E, posterior part of apodemes I; F, ventral view of tarsus I; G, dorsal view of tarsus I; H, ventral view of tarsus II; I, dorsal view of tarsus II; J, ventral view of tarsus III; K, solenidia of leg I. Male (L – O). L, hypostomal apex and dentate distal tip of movable cheliceral digits (arrow); M, peritreme; N, posterior part of apodemes I; O, genito-anal region. Scale bars: D, F – J = 100 µm; E, N, O = 50 µm; A – C, K – M = 20 µm.