Bulbophyllum entomonopsis J.J.Verm. & P.O'Byrne, Blumea 38 (1993) 159, fig. 2
Type: O'Byrne 250 (holo L)
Rhizome creeping, c. 4 mm diam. Pseudobulbs almost cylindrical, only few mm apart, 3.5-5 by 0.9-1 cm, hardly flattened. Petiole 2-4 mm. Leaf blade elliptic, 9-15 by 1.7-2.9 cm, index 5-5.5, tip acute. Inflorescences few together on a short sympodium, c. 2.5 cm, 1-flowered. Peduncle c. 0.5 cm; bracts 2, the longest 8 mm. Floral bracts tubular, c. 7 mm, tip acuminate. Pedicel and ovary 8 mm. Flowers widely opening. Median sepal ovate, 11-15 by 4.5 mm, index 3.3-4.5, tip acute; thick; margins and adaxial surface very finely glandulose. Lateral sepals 11-15 by 6 mm, index 1.82.5; otherwise as the median sepal. Petals clawed, obliquely ovate with an acute edge along the lower margin, near the base, 4-11 by 1.2-2.2 mm, index 3.3-5, tip slightly acuminate; margins ciliate; rather thick; surface abaxially pubescent in the upper half. Lip 3-lobed, median lobe straight, general outline ovate, c. 2.5 by 1.7 mm, index 1.4-1.5 (not spread), tip rounded; thick; adaxially slightly concave near the base, with a distinct median furrow over most of its length, laterally bordered by obtuse ridges, with 2 more convergent ridges in the basal half, surface glabrous; abaxially without median ridge, surface glabrous except for a thick, papillose lump just below the ligament; lateral lobes forwards directed, semi-elliptic, rounded, thick; margins and surface papillose towards the tip. Column from ovary to the tip of the stelidia c. 2.5 mm; stigma with two papillose lateral calli at its base, elliptic; column foot with small, fleshy lateral wings close to the attachment of the lip. Stelidia subtriangular, c. 1 mm; tip obtuse, erose; with a forwards directed, triangular, subacute tooth along the lower margin, close to the tip. Anther abaxially with a ridge ending in a rounded, papillose protrusion overtopping the front margin; front margin not protruding, papillose. Pollinia 4; the inner pair more than half as long as the outer pair. Stipes absent. (After Vermeulen, 1993)
Colours: Sepals cream-brown with 7 or 8 brown veins. Petals white with a purple central streak and purple marks near the base. Lip white with purple papillae; lateral lobes dark purple at the tip.
Habitat: Epiphyte in seasonally dry lowland forest and on smooth-barked emergent tree in sago-mangrove swamp; 0-300 m.
Flowering time in the wild: January, February, May, June, July, August, September, October, December.
Distribution: Malesia (New Guinea).
Distribution in New Guinea: Papua New Guinea (Gulf and Central Provinces).
Cultivation: Warm growing epiphyte.