36 NEUROPTERA. 
Of the variety sublimbata I have examined one of the two male types sent me 
for study by Mr. McLachlan. The dimensions, not given in the description, are: 
abdomen 37 mm., hind wing 24°5 mm. 
As to H. macropus, Hagen indeed says®, “In Selys’ Syn. Addit. 11., H. macropus is 
considered a variety of H. occisa. I believe them distinct.” But as I have before me 
a male H. macropus labelled by de Selys himself (who possesses the types of this 
species), and as I find no other specimens more likely to be H. macropus than this 
male, I think that the identity of H. macropus and H. occisa may be accepted. 
The value of the various varietal names founded upon the size of the pterostigma 
appears to me to be very slight, owing to the complete intergradation which exists, the 
fact that two or more “ varieties” live in the same locality, and, finally, that the size of 
the pterostigma on the different wings of the same individual is often very dissimilar. 
The greatest number of cells surmounted by the pterostigma (in the series accessible 
to me) is three, but no such instance occurs on all four wings of the individuals in 
question ; one or more wings have only 24 cells beneath the pterostigma. 
In many cases the pterostigma, instead of exactly surmounting two adjacent cells, 
lies above one entire cell and the adjacent halves of two others; but such cases may be 
included with those in which two complete cells are surmounted. Similarly, when a 
pterostigma surmounts the adjacent halves of two cells, such a case is to be classed as 
* pterostigma surmounting one cell.” 
The present series contains males in which the pterostigma surmounts 2 cells on 
two wings, 14 cells on the other two; in others, 13 cells lie below the pterostigma 
on all the wings, or on three wings, while on the fourth wing there is but one cell. 
Among those males in which the pterostigma surmounts one cell are some in which 
two of the wings have hardly any pterostigma, or in which there is but half a cell lying 
beneath on two wings. 
To H. heterosticta have been referred, by Hagen, some specimens (JM. C. Z.) now 
before me, in which the pterostigma is reduced to a slight clouding around a single 
postcubital, which forms a more oblique angle with the costa than its fellows. It does 
not appear that this cross-vein (pterostigmal vein) always represents the same end of 
the pterostigma (inner or outer) of the typical H. oecisa or of H. macropus. 
In individuals referable to H. asticta, in which not even any slight clouding or even 
thickening of a vein exists, the position of the lost pterostigma is usually indicated on 
one or more wings by the greater obliquity of a single postcubital in that part of the 
wing where a pterostigmia elsewhere occurs. 
In H. macropus and its varieties, except in H. sublimbata, the tips of all four wings 
of the males are marked with a small rounded brown spot. On the hind wings the 
number of cells within this spot is greater than in the adjoining unspotted portions of 
the wings. A similar increased density of reticulation sometimes exists in the spot on 
the tips of the front wings, but is not usual. In teneral males, before these apical 
