1)I1'tli;a. 



425 



Chironomus imitans, Mas. 



Pallide viridis ,- antennce fusctc ; thorax vittis tribus pectorisque disco 

 nigro-cinereis ; pedes iibiis et tarsnrum ardculis apice fuscescenli- 

 bus ; alee limpidoc, venis albidis, lilura discali fiisca. 



Pale green. Anteiinse biowu. Thorax with three blackish gray 

 stripes. Pectus with a blackish gray disk. Abdomen with a broad blackish 

 gray band on the fore border of each segment. Legs pale green, long, 

 slender ; tips of the tibiae and of the joints of the tarsi brownish. Wings 

 limpid ; veins whitish ; discal mark brown. Length of the body 4 lines ; 

 of the wings 6 lines. 



Van Dieman's Land. 



Chironomus oppositus, Mas. 



Pallide testaceus aut viridis ; antemice fuscce ; thorax vittis tribus rufes- 

 cenlibus ; abdomen pubesceus, viride fasciis fuscis; pedes pallide 

 virides pubescentes, tarsis apice fuscis ,• al(e limpidce, venis albidis, 

 litura discali fusca. 



Pale testaceous, green ? while living. Antcnnse brown. Thorax 

 with three reddish stripes. Abdomen pubescent, green, with a brown 

 band on each segment. Legs pale green, long, slender, pubescent ; tarsi 

 brown towards the tips ; fore tibia very much longer than the fore meta- 

 tarsus. Wings limpid; veins whitish; discal transverse vein brown. 

 Length of the body 3^ lines ; of the wings 5 lines. 



Van Dieman's Land. 



Chironomus conjungius, Mas et Foem. 



Viridis; antenum pallide fusca: ; thorax viliis tribus rufcsccnlibus ; 

 ■pedes pallide virides, tarsis apice fuscis ; alee limpida, venis pallidis, 

 lilura discali nulla. Mas. — Abdomen pubesceus apice fuscum. 



Green. Antennae pale brown. Thorax with three reddish stripes. 

 Legs pale green, slender; tarsi brown towards the lips ; fore tibia much 

 longer than the fore metatarsus. Wings limpid; veins pale; no discal 



