FAMILY v.— TRYXALINyE. 119 



tends from the pronotum to the tip of the vertex where it is 

 enlarged, the latter from the pronotum to a point opposite 

 the anterior margin of the eyes where each suddenly bends 

 to join the lateral carinee of the v^ertex. The vertex is con- 

 vex and equilaterally triangular. Its lateral carina are 

 generallv distinct, sometimes heavy, raised lines. The lat- 

 eral foveolcE are present below the vertex, sub-triangular, 

 not deeply impressed, sometimes not very apparent because 

 of the slightness of the lower carinas and because of their 

 small size. The frontal costa has its sides somewhat regu- 

 larly divergent from the vertex to the clypeus, generally a 

 little constricted about the ocellus and shghtly sulcate lor a 

 greater or less distance above this point but never sulcate to 

 the vertex. The antennas are thick, generally somewhat flat- 

 tened at the base and clavate at the apex, which is bluntly 

 acuminate and scared}' longer than the head and pronotum. 

 The pronotum has the lateral and median carinse distinct 

 and cut once only b}'^ the principal sulcus decidedly behind 

 the middle. In addition to these usual carina are two 

 supplementary carinte on either side about midway between 

 the median and lateral carina. The posterior margin and the 

 lateral lobesof the pronotum are very obtusely angulate. The 

 lateral lobes of the pronotum are about as high as the\' are 

 long, with the anterior border decidedly or little more oblique 

 than the posterior They have a more or less distinct carina 

 which runs obliquely from the first sulcus to or toward the pos- 

 terior margin. The lower anterior angle is obtuse, the pos- 

 terior is rectangular. The lower margin is straight and hori- 

 zontal on the posterior half, straight and slightly ascending 

 on the anterior half. Themesosternal lobes are separated by 

 a space much w4der than long, and themetasternal lobes by a 

 space longer than wide, in both sexes. The tegmina and 

 wings are usually well developed, extending much beyond 

 the middle of the wing and the scapular area in the male is 

 widened and filled with a series of rather weak and not 

 very regular oblique veins. There is no intercalary vein and 



