Chironomus bicoloris Tokunaga


Tokunaga's (1964) description of C. bicoloris.



C. bicoloris: Male hypopygium (left) and superior appendage (right)


Type data: holotype USNM US66552 adult male, paratype(s) USNM 2 adults male.
Type locality: Dugor, Weloy, Yap Island.

Australian specimens
AR about 3.10 - 3.16.
Frontal tubercles longer than in Micronesian specimens - about 28 micron - longer than the width of two eye facets.
Palp proportions: 30 : 127 : 127 : 220

Wing length: 3.34 - 3.76 mm; wing width 0.82 - 0.86 mm.
VR about 1.0

Leg lengths (microns) and proportions as follows:

 

Fe

Ti

Ta1

Ta2

Ta3

PI

1460

1405

2275

-

-

PII

1540

1450

895

530

390

PIII

1675

1805

1335

750

600

 

Ta4

Ta5

LR

F/T

BR

PI

-

-

1.62

1.04

-

PII

215

150

0.61-0.63

1.06

 

PIII

350

155

0.73-0.75

0.93-0.94

 

Bristles on 9th tergite: 14 - 16

Found: Queensland - Lake Boemingen and Lake Wabby, Fraser Island; 3 km w. Sarina Beach.

            Also found in Micronesia - Caroline Islands: Pelau Islands and Yap Island.

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Modified: 5 March 2008
Access: Unrestricted
Copyright © 2005-2008, Jon Martin.