Allogalumna cubana Balogh & Mahunka, 1979

Ermilov, Sergey G. & Tolstikov, Andrei V., 2015, Contribution to the knowledge of Galumnoidea (Acari, Oribatida) of Cuba, ZooKeys 537, pp. 65-78 : 66-68

Taxon classification Animalia Sarcoptiformes Galumnidae

Allogalumna cubana Balogh & Mahunka, 1979 Figs 12-13, 14-15, 16-23

Supplementary description.

Measurements. Body length: 332-348 (12 specimens: six females and six males); notogaster width: 232-249 (12 specimens). Without sexual dimorphism.

Integument. Body color brown to light brown. Body surface punctate (visible under high magnification, × 1000).

Prodorsum. Rostrum broadly rounded. Sublamellar lines distinct, curving backwards. Rostral (12-16) and lamellar (6-8) setae thin, smooth, directed antero-medially. Interlamellar setae minute (2). Bothridial setae (65-73) with elongated, unilaterally dilated and sparsely ciliated head, directed postero-laterad. Exobothridial setae and their alveoli absent. Porose areas Ad oval, transversally oriented (8 × 4), usually visible only in dissected specimens.

Notogaster. Anterior notogastral margin not developed. Dorsophragmata of medium size, elongated longitudinally. Notogastral setae represented by 10 pairs of alveoli. Four pairs of porose areas without clear borders: Aa oval, slightly transversally oriented (32-41 × 20), but it seems round in dorsal view; A1 rounded (12-16); A2 (16-20 × 10-12) and A3 (16-24 × 12-16) oval. Areas Aa located antero-medially to la. Often small additional porose parts (Aad; one to three represented by five to nine heavily pores) present nearly of Aa, but they visible only high magnification (Fig. 19). Median pore absent in males and females. All lyrifissures distinct, im located between lm and A1. Opisthonotal gland openings located laterally to A1.

Gnathosoma. Morphology of subcapitulum, palps and chelicerae similar to Pergalumna cubaensis sp. n. Subcapitulum size: 86-90 × 82-86. Subcapitular setae setiform, slightly barbed, a (14-16) longer than m (10-12) and h (8); a thickest, h thinnest. Two pairs of adoral setae (8) setiform, barbed. Palp length: 69. Axillary sacculi distinct. Chelicera length: 127. Cheliceral setae setiform, barbed, cha (32) longer than chb (20).

Epimeral and lateral podosomal regions. Anterior tectum of epimere I smooth. Setal formula: 1 –0–1– 2. Setae thin, smooth, 1a, 3b and 4a (10) longer than 4b (6) Pedotecta II rectangular, rounded distally in ventral view. Discidia sharply triangular. Circumpedal carinae clearly not reaching insertions of 3b.

Anogenital region. Six pairs of genital (g1, g2, 10; g3-g6, 6), one pair of aggenital (4), two pairs of anal (4) and three pairs of adanal (4) setae thin, smooth. Genital plates with two genital setae on anterior edge. Adanal lyrifissures located parallel to anal plates. Distance ad1-ad2 shorter than ad2-ad3. Setae ad3 inserted laterally to iad. Postanal porose area oval, transversally oriented (12-16 × 6-10).

Legs. Morphology of leg segments, setae and solenidia, formulas of leg setation and solenidia similar to Pergalumna cubaensis sp. n. (Table 1), but solenidion φ of tibiae IV inserted dorsally at about 1/3 length of segment, directed backwards in basal part.

Material examined.

Locality Cuba 2: 12 specimens (six females and six males).

Remarks.

The Cuban specimens of Allogalumna cubana from Balogh and Mahunka’s description ( 1979) and our specimens are identical morphologically. Hence, based on these data, the main characters of Allogalumna cubana are: small body size (328-348 × 232-251); body surface indistinctly punctate; rostrum rounded; rostral setae longer than lamellar setae, all thin, smooth; interlamellar setae minute; bothridial setae with elongated, unilaterally dilated and sparsely ciliated head; anterior notogastral margin not developed; four pairs of oval/rounded porose areas, Aa slightly transversally oriented; median pore absent; epimeral and anogenital setae thin, smooth; setae ad3 inserted laterally to iad; postanal porose area present; tridactylous.