66 ON A NEW GENUS AND SPECIES OF ODONATA. 
Cordulia, Somatochlom , etc.,* agree in having the tri¬ 
angle of the hind-wing recessed, the anal loop spurred to 
some extent at least, and M 4 -Cu 1 of the fore-wing con¬ 
vergent. They may be regarded as forming a natural 
group I believe, and may be separated from the remain¬ 
ing genera of the Cordulina whose exact inter-relation¬ 
ships are much more difficult to tabulate. Amongst 
these genera Metaphya must take its place, and I cannot 
at present indicate its exact position much more 
clearly than this. In its very simple neuration it resem¬ 
bles I dionyx- and G omphomacvomia paradoxa, but differs 
from both in having the hinder triangles recessed. In 
this it resembles more especially Libellulosoma and 
Acschnosoma, but to me the relationship does not appear 
close and the character after all is probably one of 
specialization, hence I believe a more extended study of 
the morphology of these genera is necessary before an 
entirely satisfactory classification can be put forward. 
Description of Species. 
Metaphya mica ns n. sp. 
Length of abdomen 17.5 mm. 
Length of hind-wing 22.5 mm. 
Head, upper lip black, vertex metallic blue-black. 
Thorax above and at sides entirely of a metallic 
blue-black. 
Abdomen entirely black, above testaceous. 1 and 2 
yellowish brown below with a long brown genital 
appendage on 2 directed downwards and backwards. 
7, 8, 9, 10, flattened from side to side. Terminal append¬ 
ages short, a little longer than 10, black filiform, the 
upper pair blunt at their ends. Legs black, very dark 
brown, where they join the thorax. ’ Seven antenodal 
* The genera referred to are:— 
Hmiicordulia. Bengal, Madagascar, Austromalaysia. 
Cordulia. Europe, North America, North Asia. 
Procordulia. Austromalaysia, New Zealand. 
Somatochlora. Europe, N. Asia, N. America, New Zealand. 
Paracordulia. S. America. 
Dorocordulia. N. America. 
Helocordulia. N. America. 
Tetraconeura . N. America. 
Epicordulia. N. America. 
Epitheca. Europe, N. America. 
