190 S. H. SCUDDER ON THE WINGS OF SOME FOSSIL NEUROPTERA 



middle to the tip ; last joint considerably smaller than the penultimate, furnished apparently 

 with a pair of very short, bluntly conical, anal appendages. The costal border of the wings 

 is almost perfectly straight, till near the tip, at a point just before reaching the tip of the 

 abdomen when the wings are at rest, where it begins to curve. The inner border begins to 

 form an opposite curve at a corresponding point, and together they form a curve of per- 

 fect regularity with no angle whatever. The inner border is straight for some distance 

 from this curve towards the base, the wing growing but slightly narrower till near the base, 

 when it narrows suddenly, but (probably) with a regular curve. 



The cross-veins connecting the branches of the v. scapularis are only two or three, run- 

 ning obliquely downwards and outwards from the upper to the lower branch at equal dis- 

 tances from one another, and the outer at a similar distance from the forking of the low r er 

 branch. The cross-veins, between the branches of the v. interno-mcclia, run parallel to the 

 inner margin between the extremities of those branches. The cross-veins are very slight, 

 and in the case of those in the area marginalis are very irregular in direction and disposi- 

 tion, like the same space in the Termitina. In the other parts of the wing the two or 

 three scattered ones in the places mentioned are regular and straight. 



Miamia Bronsoni Dana. 



Measurements : head, .10 in. broad ; length of eye, .08 in. ; length of pro thorax, including 

 front projection or tooth, .15 in. ; breadth of meso-thorax, .25 in. ; from the hinder edge of 

 prothorax to the extremity of the abdomen, 1.12 in. ; breadth of middle femora, .05 in. ; 

 length of hind femora (what is seen of them), .33 in. ; breadth of same, .07 in. ; length of 

 hind tibiae, .18 in. ; breadth of same, .04 in. ; expanse of fore wings, 2.16 in. ; expanse of 

 hind wings, 2 in. ; extreme breadth of fore wing, .40 in. ; length of the anal append- 

 ages, .05 in. 



Head just twice as long as broad ; prothorax of the same width as the head, the front 

 border convex, produced considerably forward in the middle to a pointed and rather slen- 

 der tooth, a very slightly impressed median carina extending the whole length of the pro- 

 thorax, a scarcely perceptible linear impression crossing the hinder portion, starting from 

 a little in front of the posterior angle and curving forward so much that the broad, straight, 

 scarcely elevated ridge connecting its two extremities is equally distant from it and the 

 hind border of prothorax ; the sides of prothorax very slightly convex, the prothorax itself 

 about five sixths as broad posteriorly as anteriorly. Femora (front legs wanting) broad, 

 slightly swollen along the middle line, flat upon either side, the extremities docked, the 

 angles slightly rounded. Tibia) much narrower, with no median ridge except in the hind 

 tibia?, where it is slight in the middle. Wings in repose reaching the same point. 



Family Hemeristina Scudder. 



Neuroptera of large size. The prothorax is quadrangular, narrower than the meso- and 

 meta-thorax, though not proportionally so much so as in the Palaeopterina ; the femora 

 (probably the front pair) are as in the Palreopterina, but proportionally broader. 



Wings large, long, about twice as broad beyond the middle as near the base, the costal 

 border convex in its outer half, with numerous and prominent cross-veins, but no reticu- 

 lations ; when at rest, overlapping quite completely even close to the base, much as in the 

 Perlina, and probably with the sides protected near the base by the deflected area} margin- 

 alis et scapularis. 



