HEMIPTERA— HOMOPTERA— FULGORINA. 29 I 



the lower ulnar cell, and is apparently united, immediately after its depart- 

 ure, to the lowermost ulnar branch by a cross-vein parallel to the base of 

 the upper fork of the lower ulnar branch. 



Length of body, 4.8'"™; tegraina, 4.1'"'" ; breadth of latter, 1.25™'°. 



Florissant. One specimen, No. 319. 



4. DiAPLEGMA VENERABILE. 



Two specimens of this species sliow, one a side, the other a dorsal, 

 view. The tegmina are nearly three times as long as broad, the costal bor- 

 der more than usually arcuate, which has the effect of shortening the wing. 

 The radial vein first forks well before the middle of the wing, and the lower 

 ulnar branch only a little bevond the middle ; the upper radial is three, 

 the lower two-branched, the cells made by them moderately broad. The 

 upper ulnar vein runs in a straight line to the apex of the wing, and oppo- 

 site the first fork of the upper radial branch sends a cross-vein to the upper 

 fork of tlie lower ulnar branch, crossing it and emitting in the middle of the 

 cell of the latter a couple of approximated veins, running longitudinally, but 

 it can not be seen to continue to the lowermost fork of the ulnar. 



Length of body, 3.75"""; of tegmina, 3.7'"'"; breadth of same, 1.2'"°; 

 length of hind tibia?, 1.35"™. 



Florissant. Two specimens, Nos. 2161, 4824. 



5. DiAPLEGMA OCCULTORUM, 



The fore femora laterally mesially carinate. Tegmina nearly four times 

 as long as broad, sliglitly bi'oader on the apical than the basal half. The 

 radial br.mches just below the middle of the wing, its branches rather 

 distant, the upper three, the lower two-branched, striking the costal margin 

 over a little more than the apical fourtli of tlie wing. The ulnar veins 

 divide close to the base of the wing and scarcely diverge, the upper branch 

 exactly midway between the lower branch and the radial vein, and scarcely 

 or not at all disturbed in running straight to the apex, its lower member act- 

 ing more as a cross-vein, about opposite the tip of the sutura clavi, uniting 

 it to the upper fork of the lower branch, and crossing in a bent arcuate line 

 to the lower fork, emitting midway and apj^roximately two subforks, and 

 then bending upward continues distinctly to the lower fork. All the veins 

 with long, distant, stiff hairs a little farther apart than the length of the hairs. 



