Bruner: South American Crickets. 373 



Apparenth- witliout hind wings and with the tegmina of the female 

 about three-fourths of, and of the male equal to, the abdomen in length. 

 Ovipositor robust, a little shorter than the hind femora, with a gentle 

 upward curve, the apex ha\ing the superior margin not obliquely 

 subtruncate, rather sharply serrate, the immediate apex not \cry 

 finely pointed. 



General color dark piceous varied on the occiput, gena?, legs, 

 humeral angle of tegmina, and venter with some streaks and patches 

 of dull testaceous, most apparent in the male. Front and pronotum 

 provided with a number of moderately strong spine-like black bristles. 

 Head a little wider than the anterior margin of the pronotum; eyes 

 large and prominent, the front and occiput evenly, but not greatly, 

 convex. Pronotum considerably wider than long, the sides gently 

 rounded, the apex but little narrower than the base; the hind margin 

 straight (d^) or a little sinuose (9 ). 



Length of body, cf, 5-7 mm., 9 , 7-25 mm.; of pronotum, cf , i.i5 

 mm., 9, 1-35 mm.; width of pronotum, cf, 2 mm., 9, 2.25 mm.; 

 length of tegmina, cf, 4 mm., 9 , 3-5 mm.; of hind femora, d^ and 9 . 

 5.5 mm.; of ovipositor, 4 mm. 



Habitat. — The pair of insects upon which the present species is 

 based come from "Chapada, May" (9 ) and "Chapada, near Cuyaba, 

 Alatto Grosso, Brazil, June" (cf ) where they were taken b}' H. H. 

 Smith. They belong to the Carnegie IMuseum. 



33. Nemobius amazonus sp. nov. 



A small smooth-bodied insect, which at first glance recalls one of the 

 smaller species of Miogryllns in its general appearance, but upon 

 closer inspection shows its Nemobine relationships. It also shows 

 some relationship to Hygronemobius in the venation of the tegmina 

 of the male, but has the four movable spines on the two lateral canthi 

 of the hind tibiae of Nemobius. 



Head small, about equal in width ( 9 ) or slightly more (cf) than 

 the anterior portion of the pronotum. Eyes of moderate size and 

 prominence, the front gently convex, in the two sexes about equal in 

 width to the longest diameter of one of the eyes. Pronotum a little 

 wider than long, with the sides gently rounded, the hind and front 

 edges about equal in width (9 ), or about one and two-thirds wider 

 than long, with the sides divergent towards the base (cf), in both 



