C. indiaensis Martin 2011

as new name for C. samoensis sensu Chatopadhyay et al.
Description and metrics based on Chattopadhyay et al. (1991)

Adult:


Adult of C. indiaensis from Chattopadhyay et al. (1991) (as C. samoensis).

Male:
Wing length about 2.53-2.58 mm, wing width 0.73-0.76, VR 1.02.  AR 2.99.

LR - 1.41; the fore Ta5 about 0.28 of the length of Ti.
Brownish species; yellow thorax with brown vittae, abdomen light brown to brown with median grey spots.  Legs yellow.
Head:  Frontal tubercles present, abt 180 µm; abt 23 - 25 clypeal setae.
Palpal proportions (arbitrary units): 10 : 12 : 59 : 61 : 81.
Thorax: Setae - Achrostical 14; dorsolateral 11-12; prealar 6; scutellar in two or three rows, ant. row 9-10 small setae, post. rows 10-12 long setae.
Leg proportions and ratios (arbitrary units):
 
Fe
Ti
Ta1
Ta2
Ta3
PI
42
39
55
30
26
 
PII
45
38
24
13
8
 
PIII
49
50
35
20
15
 
 
Ta4
Ta5
LR
F/T
BR
 
PI
23
11
1.41
1.08
2.44
 
PII
6
4
0.63
1.18
 
 
PIII
9
5
0.70
0.98
 
 

AntTa5 about 0.28 of Ti.

Hypopygium with stout anal point, 5-6 basal setae, about 13 setae on tergite 9.  SV a boot or shoe shape (S-type of Strenzke);  Inferior volsella with 13-15 bifid or trifid setae.

Differs from C. samoensis where the frontal tubercles are longer (33 - 38 micron); the LR is greater (1.82-1.96); and the fore Ta5 is relatively longer (0.35-0.4 of the length of fore Ti).

Female:
Wing length about 2.79-2.83 mm, wing width 0.76-0.77.  AR 0.39.
Antennal proportions: 13 : 9 : 8 : 8: 15.
The description of the female does not mention the unusually long foreTa4 noted by Tokunaga (1964), as characteristic of C. samoensis.

Pupa:  Length 6.51 (5.99-6.61) µm in males, 7.21 (7.01-7.53) in females.  Colour brown, but pupal exuviae pale brown.  Frontal tubercles 75 µm long and 57 µm wide at base, subapical seta 39 µm long.
Thorax rugose, wing sheath 1.69 mm long.
About 84-96 hooklets on tergite II, tergites II-VII with median shagreen, tergite VIII with 2 median patches of shagreen.  Pedes spurii A caudolateral on segments IV-Vii, pedes spurii B caudolateral on segment II.  Tergite I bare, tergite II-VII with median shagreen, terite VIII with 2 median patches of shagreen.
Caudolateral spurs of segment VIII with 2-4 spines.

Fourth instar larva:  a small to medium plumosus type (8.41-9.83 mm), with anterior VT shorter than posterior pair; anal tubules tubular, about 340 µm long.
Head capsule described as brown, but only mention of darkening is on the occipital margin.
Antenna with basal segment about 2.7 times longer than wide, Ring organ only about a quarter up from base; AR 1.86; blade 390 µm, accessory blade 150 µm long; ratio of antennal segments (micron): 80 : 25 : 9 : 6 : 3.
Mentum shown as type I-II, i.e. 4th laterals appear slightly reduced, but laterals noted as gradually reducing in size.
Pecten epipharyngis with 14 teeth.  Premandible with outer tooth longer.
Mandible shown with 3rd inner tooth only partially separated and pigmented.

The most obvious difference from the larva of C. samoensis is that antennal segment A4 of that species is longer than A3, while the relative lengths are reversed in this species.

Cytology - not known.

Found: West Bengal - Berhampur, Farakka, Burdwan.

No type has been designated, but the specimens are stated to be in the National Zoological Survey of India, Calcutta; the British Museum (Natural History), London; and the United States National Museum, Washington, D.C.

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Modified: 11 January 2019
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Copyright © 2000-2019, Jon Martin.