. Annals of tropical medicine and parasitology. Parasites. 250 palpi brownish-yellow; third segment of palp cylindrical, not inflated, nearly as long as the fourth and fifth segments together, sensory hairs very few. Antennae: torus dark brown, flagellum paler brown, with conspicuous short and long spines on all the segments, and rather short brown hairs. First segment small, hair- less; segments four to ten oval to elongate-ovoid, slightly constricted at the apex but not flask-shaped, the length varying from one and three-fifths to one and four-fifths the width; segments eleven to fifteen sli
. Annals of tropical medicine and parasitology. Parasites. 250 palpi brownish-yellow; third segment of palp cylindrical, not inflated, nearly as long as the fourth and fifth segments together, sensory hairs very few. Antennae: torus dark brown, flagellum paler brown, with conspicuous short and long spines on all the segments, and rather short brown hairs. First segment small, hair- less; segments four to ten oval to elongate-ovoid, slightly constricted at the apex but not flask-shaped, the length varying from one and three-fifths to one and four-fifths the width; segments eleven to fifteen slightly longer and more flask-shaped, length from about twice to two and a half times the width, the last segment not ending in a stylet but tapering to a blunt point. Thorax bright yellow with dark brown dorsal bands similar to those of D. flava but darker and not distinctly separated. Scutellum (fig. 5) bright yellow, very slightly darker at the sides, with two lateral and four centro- marginal bristles and a single central-sub-marginal, small Fig. 5. Dasybelea jiavipicta^ , scutellum of female. X c. 375. Post-scutellum dark brown. Pleurae yellow or yellowish-brown. Wings clear, without spots, rather thickly clothed with long decumbent hairs which extend to the base between the fourth and fifth veins. The bifurcation of the fourth vein before the middle of the wing, that of the fifth vein at about the same level as the end of the costa. Halteres with bright yellow knobs and brownish stems. Legs almost uniformly light brown; claws short, equal, simple. Abdojnen: dorsum dark brown, venter paler, with yellow pigment (soluble in caustic potash) visible laterally and, when the abdomen is distended, betv/een the segments. Spennathecae similar to that of D. -flava, single, highly chitinised, pyriform, length about 45/u ; the commencement of the duct is chitinised. Chitinous plates on the ventral aspect in the neighbourhood of the vulva unlike those of D. flava, and the tub
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectparasites, bookyear19
