HEMII'TEKA IIOMOPTEBA APHIDES. 263 



Length of body, 3.5"""; wings (partly estimated), 4.75"""; fore legs, 



4.l mm ; femur, ].4;V UI "; tibia, 2.25""" ; tarsus, 0.4"""; middle legs, 4.55"" 11 ; 



femur, 1.7;V m ; tibia, 2.4"""; tarsus, 0.4' um ; hind legs, 6 5 mm ; femur, 2 mm ; 

 tibia, 4 mn ' ; tarsus, 0.5""". 



To the memory of the faithful paleontologist, Dr. Oscar Harger, of 

 1 New Haven. 



Florissant. One specimen, No. 11360. 



3. APHIUOPSIS LUTARIA. 



Head and thorax rather darker than the abdomen, the femora rather 

 lighter than the tibiae. Antenme a little longer than the fore wings. Wings 

 fully three times longer than broad, the postcostal vein stout and running 

 with scarcely any diminution of size into the long and very slender stigma. 

 First oblique vein straight or scarcely arcuate, parting from the postcostal at 

 an angle of fifty degrees ; second oblique vein regularly arcuate, parting 

 from the postcostal vein at an angle of forty-five degrees, and moderately 

 distant from the first oblique at base, so that the first discoidal cell between 

 them is about three or four times broader on the hind margin than at the 

 base. The cubital vein is apparently about as far from the second oblique 

 vein as it from the first oblique, first forks at about one-third way to the 

 hind margin, and has throughout a gently arcuate curve by which it 

 approaches pretty close to the stigmatic vein. This arises far back in the 

 stigma, almost reaching the first cubital fork, is gently arcuate and has a 

 very longitudinal course, so that the stigmatic cell is both slender and very 

 long, not much less than half as long as the wing. Legs very slender 

 indeed, the fore pair nearly as long as the wings and longer than the 

 middle pair, the hind tibia 1 and tarsi longer than the body. 



Length of body, 3.5-3.8 ram ; antenna?, 5.75"" 11 ; fore wings, 5.25 mm ; fore 

 legs, 4.8 mm ; femur, 1.8 mm ; tibia, 2.6 ram ; tarsus, 0.4""" ; middle logs, 4.25 nmi ; 

 femur. 1. (J"""; tibia, 2.25 mm ; tarsus, 0.4 rai " ; hind legs, fi.G""" ; femur, ~2.G mm 

 tibia and tarsus, 4 mm . 



Florissant. Three specimens, Nos. 7433, 8773, and from the Princeton 

 Collection, 1.834. 



