Syringophilopsis corvinae, Skoracki, Maciej & Sikora, Bozena, 2003

Skoracki, Maciej & Sikora, Bozena, 2003, Quill mites (Acari: Prostigmata: Syringophilidae) from African passeriform birds, Zootaxa 129, pp. 1-10 : 5-6

Syringophilopsis corvinae sp. n. ( Figs 5­8 )

Type material

Female holotype, 6 female paratypes from Yellow­billed Shrike Corvinella corvina ( Passeriformes : Laniidae ); Cameroun, Galim, 14 August 1968, leg. F. Puylaert (141.266). Holotype and paratypes are deposited in the MRAC except 1 female paratype in the UAM.

Description

Female ( Figs 5­8 ). Total body length 1200 in holotype (1155 in one paratype). Gnathosoma: Hypostomal apex ornamented, two pairs of median protuberances present ( Fig 7). Peritremes M­ shaped, each transverse branch with 5­6 chambers and each longitudinal branch with 10­13 chambers ( Fig. 8). Stylophore 285 (295) long. Idiosoma: Cuticular striations as in figs 5, 6. Propodosomal plate slightly concave on anterior and posterior margins, scarcely punctuated near bases of setae sci or without punctuations. All propodosomal setae except h, situated on this plate. Lengths of setae: vi 60 (70); ve (125­145); sci (395); h (420­455); sce 420 (410­470); d1 420 (425­475). Two small poorly sclerotized hysterosomal plates present. Lengths of setae: l1 (410­455); d2 415; l2 (410­455). Pygidial plate present, anterior margin indistinct. Setae l4, l5, d4 and d5 situated on this plate. Lengths of setae: d5 90 (90­95); d4 (120­145); ic3 (215­245); g1 75 (90); g2 75 (100); a1 55 (40­55); a2 40 (35); pg1 (345); pg2 75 (90).

Legs: Epimeres I divergent and fused to epimeres II in middle part of epimeres II. All coxae well sclerotized, without punctuations. Lengths of setae: sc1 25; sc2 25; sc3 70­75; sc4 60; 3b 160 (180); 3c (190); tc’ and tc ” of legs III and IV subequal.

Distances between setal bases: vi­vi 130 (120); ve­ve 120 (115); sci­sci 115 (110); h­h 205; sce­sce 125 (120); d1­d1 45 (45); vi­ve 20 (20); ve­sci 30 (45); sci­sce 95 (80); sci­d1 105 (90); l1­l1 125; d2­d2 105; l2­l2 170; l1­d2 105 (130); d2­l2 100 (90).

Male: unknown

Etymology

The name corvinae refers to the specific name of the host ­ Corvinella corvina

Differential diagnosis

Syringophilopsis corvinae sp. n. is most similar to Syringophilopsis yosefi Skoracki, Tryjanowski, Hromada, 2002 from Lanius sp. ( Laniidae ) by having the following characters: the setae d4 and d5 are short; hypostomal apices is with two pairs of median protuberances; pygidial plate is present; total body length is longer than 1000. The new species is distinguishable from S. yosefi by the presence of following characters: In the female S. corvinae sp. n. propodosomal plate is slightly ornamented ( Fig. 9); pygidial plate is concave on anterior margin ( Fig. 10); distances between setal bases vi­vi and sci­d1 are 115­ 130 and 90­105 respectively (ratio vi­vi:sci­d1 is 1,2:1); distances between setal bases 1c­ 1c, 2c­2c and 1c­2c are 125­140, 145­175 and 120­130 respectively (ratio 1c­1c:1c­2c:2c­ 2c is 1,1:1:1,3); the epimeres I are fused to epimeres II at middle part of epimeres II ( Fig. 11); the legs III are thick ( Fig. 12) ­ the length of tarsus III is 46; the width of trochanter III is 41­48; ratio wide of trochanter III: length of trochanter III is 1:0,9­1,1.

In the female S. yosefi (type material) propodosomal plate is strongly ornamented ( Fig. 13); pygidial plate is convex on anterior margin ( Fig. 14); distances between setal bases vivi and sci­d1 are 90­95 and 125­140 respectively (ratio vi­vi:sci­d1 is 1:1,4); distances between setal bases 1c­1c, 2c­2c and 1c­2c are 90­95, 105­130 and 145­165 respectively (ratio 1c­1c:1c­2c:2c­2c is 1:1,5­1,8:1,2­1,4); the epimeres I are fused to epimeres II at anterior part of epimeres II ( Fig. 15); the legs III are thin ( Fig. 12) ­ the length of tarsus III is 55­60; the width of trochanter III is 30; ratio wide of trochanter III: length of trochanter III is 1:1,5.

Figures

FIGURES 5 ­ 6. Syringophilopsis corvinae sp. n. Female. 5 – Dorsal view; 6 – Ventral view.