Dr. Murai Éva szerk.: Parasitologia Hungarica 26. (Budapest, 1993)

Genus Neoliga Singh, 1952 Neoliga sp. Specimen studied: one fragment without scolex, whole mount in Canada balsam, HNHM No. E4283. Description: Fragment with length 4.7 mm consisting of 20 proglottides (10 premature, 6 mature 'male' and 4 mature 'hermaphroditic'). Maximum width 0.79 mm at level of mature proglottides. Proglottides (Fig. 5A) craspedote, wider than long. Genital pores regularly alternating, situated at border of anterior 1/5 - 1/4 of lateral proglottis margin. Genital atrium (Fig. 5B) consists of two parts: terminal part with infundibular orifice and tubular lumen surrounded intensively stained cells and muscular fibres; inner part (ductus hermaphroditus) long, with well-developed circular musculature and lumen diameter of 18 - 27 (av. 21, n = 3). Genital ducts dorsal to osmoregulatory canals. Testes 22-25 (av. 23, n = 5) in number, situated in posterior half of median field, posteriorly, laterally and dorsally to female glands (Fig. 5A). Cirrus-sac elongate, oval, situated obliquely, reaching to aporal osmoregulatory canals (Fig. 5B); 460 469 x 81 - 98 (av. 465 x 88, n = 3). Evaginated cirrus present only in two proglottides, consisting (from base to distal end) of basal bulbus, smooth cylindrical zone, spinose zone, and flagellum-like terminal part; diameter of basal bulbus 20 - 22; diameter of cylindrical part 12 - 14; general length of smooth base (basal bulbus -I- cylindrical zone) 84 - 89; spinose zone 45 - 54 in length and 124 - 16 in diameter; flagellum-like terminal part coiled, with diameter 5-6. Vitellarium slightly lobed, median. Ovary two-winged, consists of digitiform lobes reaching laterally (when developed) almost to osmoregulatory canals. Mehlis' gland (as glandular structure) not observed. Seminal receptacle very large, flaskshaped, distal region folded, anterior to vitellarium. Vagina surrounded by thick sleeve of intensively stained cells; opens anteriorly or antero-dorsally to male pore, passies dorsally to cirrus-sac; separated from seminal receptacle by vaginal sclerite; diameter of vaginal lumen 20 - 32 (av. 27, n = 3); diameter of vagina together with walls 63 - 68 (av. 65, n = 3). Vaginal sclerite 38 - 41 (av. 39, n = 3)long. Remarks: According to a recent revision of the family Dilepididae (see Bona, in press), there are three valid genera possessing vaginal sclerites and parasitizing swifts [some species are also recorded as accidental parasites of swallows (Passeriformes, Hirundinidae)]: Pseudangularia Burt, 1938, Neoliga Singh, 1952, and Echinotaenia Mokhehle, 1951. The present fragment corresponds well to the diagnosis of the genus Neoliga as defined by Bona (in press), in terms of its relatively short strobila, regularly alternating genital pores and long ductus hermaphroditus. The further identification of the specimen available is difficult due to the lack of a scolex and the lack of information on the morphology of proglottides ofNeoliga spp. from Apus apus generally.This material neither correspond with Gallon's (1983) detailed descriptions of Ndepressa (Siebold,1836) and N. occidental Galkin, 1983, because its cirrus-sac is considerably larger (220 - 260 in N. depressa, 275 - 325 in N. occidentalis and 460 - 469 in Neoliga sp. from