— 6 — 



2) The exception to the fused pro-and mesonota (in the apterous 

 R. tenuipes 9) cari se arce ly be deemed to prove the rule; indeed, it 

 appears almost to render further discussion unnecessary. Moreover a 

 species from Venezuela in the Turin Museum, which I have determined 

 as Rh. femorali^ Champion, and another from Venezuela and Darien, 

 refered by me to R. angustipes Uhi., noticed in the I* part of this 

 paper) have distinctly - separated prò - and mesonota in both sexes, 

 and at the same time there are 3 distinct (as seen with a compound 

 microscope) segments in each tarsus. In short, Trochopus may perhaps 

 be 011 the way to developing into a new genus or subgenus, but it cannot 

 be said, in my opinion, to have attained as yet to that point. 



10. Corixa Kollarii (Fieb,) 



Corna bollarti Fieb. 1851 Abh. bòhm. Ges. Wiss., (v), 7, p. 229, 

 Tab. 1. Mg. 7; Guérin 1859 in Sagra's Cuba, Atlas, Tab. xm, fig. 14. 



Belongs to subgenus Callicorixa F. B. White. 



Comparatively broad, length 2 i / 2 times greater than width; pronotum 

 and clavus feebly rastrate, corium and membrane scarcely rastrate. 



Head and pronotum sho !;, width of the latter 2 1 / 2 times greater than 

 its length; lateral angles outuse, rounded. posterior angle obtuse, sub- 

 triangular. Metaxyphus triangular, somewhat elongate, not acuminate. 

 Anterior femur incrassate, intermediate tibia one-half longer than tarsus, 

 claw one-fifth longer than tarsus. 



Fig. 3. — Face of Corixa Rollarti Fieb. tf 



Fig. 4. — Anterior tibia and tarsus of te same cf. 



Fig. 5. — Anterior tibia and tarsus of te same $. 



3TJ3. — Only one row of bristles Las been represented for the sake of clearneas. 



d" Frontal fovea large, deep, ovoid, extending from the base of the 

 labrum to about two-thirds of the length of the ej^e (as seen from below), 

 and laterally from eyetoeye; base terminating in a transverse carina, 

 very slightly produced posteriorly in the middle, apical margin subtrun- 

 cate [fig, 33. 



