THE DUSKY LOCUST. 181 



of the wings vermilion-red, but in other respects it approaches 

 to this species. The long-horned locust is found oftentimes 

 in company with the marbled species, and also near sea- 

 beaches with the maritime locust, from the last of July to the 

 middle of October. 



9. Locusta nebulosa}" Clouded Locust. 



Dusky brown ; thorax with a slender keel-like elevation, 

 which is cut across in the middle by a transverse fissure ; 

 wing-covers pale, clouded, and spotted with brown ; wings 

 transparent, dusky at tip, with a dark brown line on the 

 front margin ; hindmost shanks brown, with darker spines, 

 and a broad whitish ring below the knees. Length from T 8 j 

 inch to more than l T 2 a inch ; exp. from l inch to more than 

 2 inches. 



A very common species, and easily known by its clouded 

 wing-covers and colorless wings. It abounds in pastures, 

 and even in corn-fields and gardens, during the months of 

 September and October, at which time it is furnished with 

 wings and may often be seen paired or busied in laying eggs. 

 It does not appear to have been described before. 



The three following locusts diifer from the preceding in 

 having the antennae shorter than the thorax, and slightly 

 thickened towards the end, and the face somewhat oblique, 

 the mouth being nearer the breast than in our other species 

 of Locusta ; and they seem to constitute a distinct group or 

 sub-genus, which may receive the name of Tragocephala, 1 * or 

 goat-headed locusts. 



10. Locusta (Tragocephala) infuscata. Dusky Locust. 



Dusky brown ; thorax with a slender keel-like elevation ; 

 wing-covers faintly spotted witli brown ; wings transparent, 

 pale greenish yellow next to the body, with a large dusky 



[ 1T L. nebulosa must be referred to CEdipoda. UHLER.] 



[ 18 Tragocephala is synonymous with Gomphocerua, and L infuscata, L. viridi- 

 fasciata, and L. radiata must be referred to it. UHLER.] 



