Orthotomus (Sylviidae), Horsfield, 1821

Paperna, Ilan, Keong, Malcolm Soh Chu & May, Charlotte Yap Aye, 2008, Haemosporozoan Parasites Found In Birds In Peninsular Malaysia, Singapore, Sarawak And Java, Raffles Bulletin of Zoology 56 (2), pp. 211-243 : 228

Orthotomus (Sylviidae)

Haemoproteus wenyoni Mello, Sa, Sousa, Dias et Noronha, 1916 (Table 9)

Orthotomus sepium Horsfield

Locality. – Indonesia: Java, Lingo lowland secondary forest, Jun.2002 and Jul.2001; Lingo mountain secondary forest, Jul.2001. In one bird heavy infection, including trophozoites .

Type host. – Orthotomus sutorius ( Nova Goa, India) .

Remarks. – The gametocytes conform in shape and approximate in size with the type specimens from Gujarat, as reported by Valkiunas [1997 (2005)]. The gamtocytes, likewise, grow around the erythrocyte’s nucleus, but do not enclose it and reach both the erythrocyte’s nucleus and wall. Premature gametocytes partly adjoin the erythrocyte wall or even its nucleus. Gametocytes only slightly or moderately displace the erythrocyte nucleus, but to a lesser extent than in the type specimens. The gametocytes only slightly (to moderately) displace the erythrocyte nucleus (NDR means 0.68–0.80); but a few, apparently aged, markedly displace the nucleus (NDR 0.1 to 0.6). In having larger and more numerous pigment granules, rather than smaller and fewer, presently found Hae. wenyoni are reminiscent of Hae. belopolskyi, infecting Sylviidae in western Eurasia (Bennett et al., 1991; Valkiunas, 1997). Some gametocytes (chiefly from LS062) extend spiked extentions, reminiscent of configurations reported from Hae. timalus (see vide) and Hae. belopolskyi.