June, 1917 Bulletin of the Brooklyn Entomological Society 63 



Underside of body (except edges of rostral sulcus), eyes, nonmem- 

 branous parts of pronofum and spots near apices of discoidal areas black. 

 Basal and apical joints of antennae fuscous to black; intermediate joints 

 and legs stramineous to testaceous, tips of tarsi black ; membranous parts 

 of upper surface mostly whitish hyaline; crest of hood, veins on sutural 

 area, and membrane brown ; the subcostal and discoidal areas sometimes 

 have a brownish ground color. 



This is the only American Leptostyla known that, has a single 

 series of large, rectangular areoles in the costal area, of which 

 they occupy the anterior third. This character together with the 

 entirely hyaline lateral margins of the elytra, clearly distinguish 

 the species. 



Specimens examined are from West Point, Nebr. ; Ames, Iowa ; 

 Cahokia, 111. ; Polk County, Wis. ; Amery, Wis. ; Glen Echo, Md. ; 

 and Maryland near Plummers Id. The last specimen listed was 

 taken by the writer, July 26, 1914, on a thin-leaved, climbing, 

 leguminous plant {Falcata comosa L.). The Ames, Iowa, speci- 

 mens were collected July 9, 1894, by Dr. E. D. Ball on Petalo- 

 stemon. Dr. Ball tells me that almost every plant of this genus 

 found on dry gravelly knolls bears specimens of this tingid. The 

 Amery, Wis., examples were found on a basswood leaf by Mr. 

 D. M. De Long. 



Leptostyla heidemanni Osborn & Drake. — Leptostyla heidemanni Oshorn, 

 Herbert and Drake, Carl J. The Tingitoidea of Ohio, Ohio State Uni- 

 versity Bulletin 20, No. 35, June, 1916, pp. 238-239 (Arkansas, Washington, 

 D. C, Newton, Mass.). 



Length of an average specimen (excluding antennse and spines), 3.1 

 mm.; length of pronotum, 1.18 mm.; width, .86 mm. ; width of elytra across 

 discoidal areas, 1.02 mm.; near apex, 1.05 mm.; length of antennal joints: 

 I, .26 mm.; 2, .08 mm.; 3, 1.25 mm.; 4, ,36 mm. 



Very similar to L. oblonga. The hood is more rounded triangular in 

 outline viewed from above, but as in oblonga is highest and widest in 

 front. L. heidemanni is further distinguished structurally from oblonga 

 by the elytra being practically as wide across discoidal areas as near apex ; 

 and by the possession of two series of areoles in anterior part of costal 

 area, of which the inner are smaller and alternated with the larger ones 

 of the outer series. 



In color this species is similar to oblonga, with the chief exception that 

 the cross-veinlets of the costal area are dark. A few cells at apex of 

 elytra and just within the posterior convexity of the elytron also are 

 infuscated. 



