ORTHOPTEKA OF INDIANA. 385 



453) that the pronotiim is shorter in agile than in vulgare. Redten- 

 hacher's measurements of this organ, as well as those of the hind 

 femora, are much less than the average measurements given above. 

 Harris, as well as Burmeister, states that the tegmina of agile are 

 3.5 mm. shorter than the wings, while McNeill (loc. cit.) says that 

 agile has the hind femora armed beneath. Taking all these facts 

 into consideration, though having no typical examples of agile for 

 comparison, I have concluded not to follow Redtenbacher but to re- 

 tain for the species at hand the name vulgare, by which it is best 

 known to the entomologists of the United States. 



103. Orchelimum glaberrimum (Burmeister). 



Xiphidium glaberrimum Burm., 40, II, 1838, 707; Redtenb., 110, 1891, 



187. 

 Orchelimuvi glaberrimum Scudd., 14 1, VH, 1862, 453; Id., 188, 1900, 

 73; Riley, 122, U, 1884, 186; Comst., 4 1,1, 1888,114; BL, 7, 

 1893, 133; Lugg., 84, 1898, 235; McNeill, 90, XXXII, 1900, 

 78, 81. 



Very close to and perhaps only a larger form of 0. vulgare. The 

 general color is the same, but the brown line on the disk of pro- 

 notum is, in the female, more plainly margined with black, while in 

 the male the black dashes at ends of tympanum are larger and more 

 completely enclose that organ. The tegmina of the male exceed the 

 hind femora by about 4 mm., and are exceeded by the wings about 

 the same distance; those of the female are proportionally a little 

 shorter. 



Measurements: Male — Length of body, 22 mm.; of pronotum, 6 

 mm.; of tegmina, 26 mm.; of hind femora, 19 mm. Female^ — Length 

 of body, 23 mm.; of pronotum, 6.5 mm.; of tegmina, 24-27 mm.; of 

 hind femora, 20 mm.; of ovipositor, 8.5 mm. 



Burmeister's original description of this species is very short and 

 not distinctive. It is as follows: "Verticis et pronoti medio fulvo,. 

 nigro-marginato; elytris ab alls dimidia linea superatis. Long. corp.,. 

 11'"." Burmeister knew but two species from the United States, 

 and this short description was sufficient for him to distinguish these,. 

 but of the twenty or more species now known it is difficult to say 

 Just which one he had in mind when he wrote the above. 



Glaberrimum is not a common species in Indiana. I have taken it 

 in Vigo, Fulton, Marshall and Starke counties, but only one or two- 

 examples from each locality. All were secured from tall grass grow- 

 ing near the margins of ponds or lakes. It is evidently attracted by 

 electric and other lights, as Dr. Robert Hessler took one from his 

 office window near the center of the city of Logansport on the night 



