C. pulcher Wiedemann.

Adult:  (based on description of Indian specimens by Chaudhuri et al. (1992).

Male terminalia of C. pulcher.
From Chaudhuri et al. (1992)

    Male: Body length 4.78 - 4.85 mm; wing 3.19 mm long, 0.58 mm wide; VR abt 1.04.  AR abt 3.43.
    Head: Yellowish brown, antennae and palps brown; frontal tubercles present; clypeus with 18 - 20 setae.
            Ratio of maxillary palp segments: 8 : 12: 42 : 40 : 60.
    Thorax: Greenish yellow, mesoscutum with 3 dark yellow vittae.
            Setae: Achrostichals 16, dorsocentrals 14 - 15, humerals 2, prealars 4, scutellar 12.
    Legs: Yellowish green, tarsal segments slightly darker at apices.
            Fore tibia with blunt scale (see b above) with 2 long setae.
            Anterior LR abt 1.54; mid LR abt 0.63, hind LR abt 0.69.
    Abdomen: Tergites greenish yellow with slightly darkermarkings on the middorsal line.
            Hypopygium as illustrated above, anal point narrow, slightly expanded subapically; superior volsella of D-type.  Gonostylus narrows over posterior half.

Pupa (from Dejoux 1968): length about 9-10 mm. Spur with 1-2 spines.

Fourth instar larva: a plumosus-type.  No other information on larvae from India or the oriental region known, so information from African specimens: Length 15-16 mm.  Gula darkened. Lateral tubules about 0.8-1.0 mm long, ventral tubules coiled in the typical plumosus-type manner, posterior pair longer.  Anal tubules 1.5-1.8 mm long, dorsal pair with a constriction in the middle, ventral pair longer and more or less straight.
Mentum with 4th laterals hardly reduced (type I), central trifid tooth probably of type III. Ventromentum about 3.3 x longer than width to base of striae, Dejoux's figure suggests about 23 striae; VMR about 3.  Pecten epipharyngis with about 13 broad sharp teeth (type B).
Antenna with A1 about 3 times longer than wide, RO about a third up from the base; AR about 3.5, segment lengths (micron) 120 : 17 : 5 : 9; 3; the blade reaching to the last segment.
Premandible with teeth about equal length, inner tooth perhaps 4 times wider than outer.
Mandible with 3rd inner tooth separated and darkened (type IIIC).

Cytology:  Wülker et al. (2011) have given a description of the banding sequences of specimens tentatively described as C. pulcher from Kenya in Africa.
Three polytene chromosomes with the modified thummi cytocomplex arm combination AE, CD, FEG.  Centromeric bands not heterochromatic, nucleolus terminal in arm F, but nucleolus-like bodies at the ends of arms A, B, and G.
pulA1:    1 - 3, 8 - 6, 16d - 17, 11e - 9, 4ab, 5 - 4c, 16c - 12, 18 - 19
pulB1:    Characteristic bands near centromere, puff developed about 1/3 from distal end.
pulC1:   
pulC2:    Inversion of most of the arm.
pulD1:    1 - 3, 11 - 12, 10e-a, 13 - 19b, 4 - 9, 19c - 24
pulE1:    1 - 2, 6e - 4, 13 - 12, 3f-a, 6f - 11, 13
pulF1:    1 - 10, 19 - 11, 20 - 23(N)
pulG1:    Large BR near site of fusion, small BR or puff in center of the arm, with a possible small nucleolus at the telomeric end

Found:  India - Burdwan, West Bengal.
            South Africa - "Cape" (Type locality).
            Tchad - Lac Tchad; Lac de Léré (Dejoux 1968).
            Kenya - nr. River Athi, s. Nairobi (Wülker et al. 2011).

Morphology from Africa described by Dejoux 1968> and Chaudhuri et al. 1992.  Possible cytology by Wülker et al. (2011).

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Modified: 16 December 2018
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