414 Dr. J. L. Hancock's Further Studies of 



5. T. r/raniilaia, Kirby, Fauna Bor. Amer. Ins. p, 251, 

 1837. 



One female example from America (in all probability 

 N. America) in the University Museum, Oxford. 



The following species of American Tdrio: and Nomo- 

 tettix are characterized by an obtuse-conical profile to 

 head ; the frontal costa between the eyes not at all or 

 barely excavate. These insects are labelled briefly " Amer. 

 b." which Mr. Shelford interprets as America borealis. 



6. T. amcricana, sp. nov. 



A robust long-wing form of the (jranulafa series ; body granulate, 

 the v'ertex not so angulate produced as usual, but formed, in an obtuse- 

 rounded angle in profile and not at all or indistinctly sinuate between 

 the eyes ; colour dark variegated with fuscous. Head not exserted ; 

 vertex wider than one of the moderately sized eyes, equal to about one 

 and a half times, little narrowed forward, the front margin somewhat 

 angulate but not so produced as in (jranulata ; frontal carinukie 

 rounding posteriorly into the sides, little compressed ; median carina 

 compressed, extended the length of vertex, in profile elevated above 

 the eyes and produced and rounded anteriorly ; frontal costa divid- 

 ing behind the posterior ocelli near the apex, rather widely sulcate, 

 the rami evenly divergent, in ]n-ofile not at all sinuate between the 

 eyes or rarely subexcavate, the facial costa strongly ad\'anced beyond 

 the eyes ; posterior ocelli conspicuously placed free in advance of the 

 middle of the eyes. Pronotum granulate, truncate anteriorly, 

 posteriorly subulate, the process extended beyond the apices of the 

 posterior femora ; dorsum tectiform, somewhat broad between the 

 humeral angles ; median carina little compressed 2)ercurrent, some- 

 what arcuate forward nearly straight posteriorly ; lateral cariute 

 moderately expressed ; prozonal carinte slightly expressed and sub- 

 divergent posteriorly ; lateral lobes having the posterior sinus above 

 shallow ; posterior angles rounded. Wings fully explicate ; elytra 

 oval, the ai>ices rounded. Femoral margins entire ; the first articles 

 of the posterior tarsi nearly twice the length of the third ; the third 

 pulvilli flat below and equal in length to the first and second, acute. 



Length of body entire, female, 15 mm. ; ijronotum ITS mm. ; 

 posterior femora 5"6 mm. ; wings passing the pronotal apex 2 mm. 



One example from " Amer. b." North America ; W. W. 

 Saunders' collection, presented by Mrs. F. W. Hope to 

 the University Museum, Oxford. 



