Odonata from Ecuador. 27 
Lais metallica, Selys. 
Four males and one female apparently pertain to this 
species. They are larger (length of abdomen, male, 
41—43 mm.; length of posterior wing, male, 29—30 
mm.) than the typical example; the number of ante- 
cubital nervules varies from twenty-three to twenty- 
eight. 
These examples are very adult; there are no humeral 
lines on the thorax, and only two narrow and almost 
obliterated lateral lines (compare the original description 
in the ‘Secondes Additions aux Calopt.,’ p. 11, 1869). 
The posterior wings have a distinct fuscous apical spot, 
but not so distinctly forming a ‘‘ gouttelette’ as in 
Devillei, Hauxwelli, &e. The superior appendages are 
similar to those of the typical examples; the inferior 
appendages are short, thick, and cylindrical, directed 
inward, very obtuse, the apex with a tuft of curled hairs. 
It should be noted that the origimal male types were 
probably immature, and the locality (given as Bahia or 
Guiana ?) somewhat uncertain. 
I submitted a male to M. de Selys, who thinks my 
identification probably correct; but he remarks that, 
according to these examples, metallica should be placed 
in the same section with Devillei, Hauxwell, &c. 
(cf. Compt.-Rend. Soc. Ent. Belg., xxiii., p. l1.). 
Heterina caja, Drury. 
Three adult males. They have the red portion at the 
base of the wings more extended, and the red spot at the 
apex of the posterior wings larger, than in an example 
from Venezuela given to me by de Selys. 
With these males were four adult females, which, as 
no other male Heterina was in the collection, I refer 
here (notwithstanding that M. de Selys inclines to 
consider them sanguinea). These have the wings 
strongly and uniformly tinged with yellowish, and the 
neuration is wholly brownish (with a reddish tinge), 
excepting the costa. 
Thore derwata, n. s. 
g. Adult. The black terminal portion of the wings 
commences at about the last fifth of the distance between 
the nodus and the pterostigma (thus occupying less than 
