ORTHOPTERA OF NOVA SCOTIA. — PIERS. 25U 



has been verified by specimens examined by Dr. E. M. 

 Walker of Toronto, Prof. W. S. Blatchley of Indianapolis, 

 and J. A. G. Rehn of Philadelphia, all of whom agree as to 

 their being .4. granulatum. 



Mr. Gooderham also has a single male long-pronotumed 

 specimen taken at Truro, on an unrecorded date, which is 

 somewhat abnormal. Prof. Blatchley stated it was Acry- 

 dium ornatum ornatiim of Say, and I think Dr. E. M. Walker 

 concurred in this. It was also submitted to Mr. J. A. G. 

 Rehn of Philadelphia, who after carefully examining it. 

 found that the front of the head is deformed, giving it the 

 appearance of having a projecting median carina such as 

 is present in ornatum but not normally in granulatum. 

 5. Acrydium arenosum angustuni (Hancock). (Short- 



pronotumed form.) 

 ITettix ornaia. F. Walker, Cat. Derm. Salt. Brit. Mus., 



V, 813 (1871); Nova Scotia, etc.— Do., Can. Ent., 



iv, 31 (1872); Nova Scotia, etc. 

 Acrydium ornatum (not of Say). Gooderham, Proc. 



Ent. Soc. N. S. for 1916, 23, 27 (1917); Col., Kings, 



Hants, Ann., and Yar. Cos. 

 Description. — Nova Scotian specimens. Body rather robust; greatest 

 width contained in length 2}/^ times in male and 23^ in female; greatest 

 vertical depth of thorax contained in same length 3 times in male and 3^ 

 in female; apex of pronotum exceeding femur by about length of head; hind- 

 wings to about end of pronotum or slightly shorter. Head, pronotum and 

 legs granulated; abdomen less so; carinse with larger and closely-set granula- 

 tioiis. Median carina of face grooved; profile of face projecting before vertex, 

 rather strongly hollowed before eyes, arching out strongly between antennae, 

 then gently curving in, and finally rising very slightly above the clypeus. 

 Vertex nearly as wide as its length, very slightly concave between carinae, 

 its front margin only very slightly convex (being approximately a curve 

 struck with the centre located at about front margin of pronotum), slightly 

 indented in middle, and projecting in front of eyes for only 1/7 to 1/10 of 

 width of vertex. Median carina of vertex on anterior three-quarters or all 

 of head, but slightly raised, faintly convex in profile, its anterior end pro- 

 jecting very little beyond margin of vertex. Pronotum truncated and nar- 

 rowed in front, nearly twice as broad at shoulders, lateral lobes constricted 

 at 14 distance between anterior margin and shoulders. Disk of pronotum 

 in shoulder region nearly flat transversely. Median carina distinguishable 

 throughout entire length, but has slight prominence, except at the anterior 

 eighth of its length where it rises and forms a sort of hump, anterior to which 

 it is somewhat compressed. Anterior lateral carina? separated about width 

 of vertex, and become obsolete posteriorly at a distance a little less than 



