64 NEUROPTERA. 
Hab. Mexico, Atoyac (H. H. Smith, Schumann: 163,89) and Presidio (Barrett, 
coll. P. P. @.: 16) in Vera Cruz, Teapa in Tabasco (Hf. H. Smith: 1a, 12); 
Guaremata, Cubilguitz [1 ¢], Cahabon [3 4], Panzos [1 6 |, and Teleman [2¢,192, 
the pair in copuld], all in Vera Paz (Champion); ? Costa Rica, Caché (Rogers: 12); 
Panama, Boquete (Champion: 13 ).—VxENEZUELA, Puerto Cabello !?. 
I have not seen any Venezuelan examples. The only objection to the identification 
of the material before me as H. chrysops is in the statement that the superior appendages 
of the male are “dilatés en dedans au milieu, en une dent inférieure aigué” 1, These 
males have the tooth at two-thirds the length of the appendage, and in this respect 
differ from H. tricellulare. However, this objection loses its force when one finds that 
the same word “milieu” is employed in the description of H. erythrogastrum by 
de Selys, although in that species also the tooth is at two-thirds the length of the 
appendage. Evidently, therefore, “ milieu” must not be interpreted too exactly. 
There is no smaller tooth or denticles above the principal tooth in H. chrysops as there 
is in H. tricellulare. 
The original description ! of the colours of H. chrysops agrees very closely with that 
given, supra, for H. tricellulare. The male from Panzos is most like the types described. 
From a comparison of it with the other specimens before me it is evident that 
considerable change in colours takes place, either as individual variation or, more 
likely, in correspondence with advancing age. These changes do not seem to have 
been noted in Heteragrion, and are important as they indicate that the colours on the 
thorax are not indicative of specific differences. 
The Panzos male, like the type of H. chrysops, has “une tres-large bande roua-brun 
entre laréte dorsale et la suture humérale, une autre posthumérale suivie de deux 
latérales, la second fine.” From this starting-point one can trace a darkening of the 
‘roux-brun” until individuals are found in which the antehumerals are black, the 
posthumeral dark brown. The two laterals never become so dark and are usually 
indistinct; in some having the antehumerals black, the posthumeral is not well- 
developed. As the antehumerals darken they remain distinct from the black mid- 
dorsal by a yellow line on either side; the colour-pattern thus produced is the same 
as described for H. majus, but in none of these H. chrysops with black antehumerals 
has the abdomen acquired the colours of H. majus, but retains those stated in the key, 
anted, p. 62. 
The description of the colours of the female of ZH. tricellu/are will also apply very 
well to that of H. chrysops. The black markings, however, may be varying shades of 
brown according to age. In all these females of H. chrysops the dorsum of segments 
9 and 10 is dark brown, instead of pale brownish-yellow as in H. tricel/ulare. 
Antenodals on the front wings 2 (89°4°/, do, 95°/, 2), 3(96%/, 3, 9 /, 2), or 
94+ (1%, ¢); on the hind wings 2 (94:3 %/, ¢, 100 /,2),or3 (57% 3). 
