FAMILY VI.-LOCUSTID.^. 



213 



base; furcula delicatel}' developed; cerci 

 compressed styliform, rather small; ovi- 

 positor of female normally excerted. 



This genus is closely allied to Melan- 

 ophis, from which it differs by its large 

 tumid head and sub-sellate equal pro- 

 notum. 



Phcetaliotes nebrascensis volucris 

 Scudder. 



This is the short winged form, the 

 only one found thus far in Minnesota. 

 Fusco-testaceous, flavous beneath. Head 

 flavo-testaceous,in fresh specimens more 

 or less fusco-olivaceous, much infus* 

 cated above, with a broad piceous post-ocular band, and 

 often with a pair of divergent fuscous or ferrugineous stripes 

 on the summit; vertex very tumid, distinctly elevated above 

 the level of the pronotum ; eyes moderately large, rather 

 prominent. The male of this curious insect is shown in 

 Fig. 137. 



Measurements. — Length of body, male, 22 mm., female, 

 23 mm.; antennas, male, 9.5 mm., female, 7 mm.; tegmina, 

 male, 6 mm., female, 6.5 mm. ; hind femora, male and female, 

 11.75 mm. 



FAMILY VL Locustidie. 



Pig. ISr. — Plicetalio- 

 tes nebrascensis volucrJs. 

 male. Original. 



LONG-HORNED GRASSHOPPERS AND KATYDIDS. 



All the members of this family are readily recognized, 

 differing very greatly from the true locusts or short-horned 

 grasshoppers {Acrididae) by their long and slender antennae, 

 which are longer than the body. From the next family, the 

 Gryllidae, which possess also slender and long antennas, they 

 differ by the form of their ovipositor, which is compressed 

 and sword-like. Locustidae have four-jointed tarsi; the 

 musical apparatus of the male, situated at the base of the 



