296 Mr. J. S. Baly's descriptions of new genera 



spaces nitidous. Scutellum trigonate, its apex obtuse. 

 Elytra broader than the thorax, oblong, regularly rounded 

 at the apex ; convex, transversely depressed below the 

 basilar space; strongly punctured, the punctures indis- 

 tinctly arranged in ill-defined longitudinal rows ; inter- 

 spaces shining, impunctate ; on the transverse depression 

 near the suture are some faint oblique wrinkles. 



Aphthona Pilatei. 



Ovata, convexa, nigro-£enea,nitida, an tennis pedibusque 

 fulvis, femoribus posticis piceis; thorace l^evi; elytris 

 tenuiter punctato-striatis, interspatiis planis, Isevibus. 



Long. I lin. Hab. — Mexico, Teapa. 



Head trigonate, not longer than broad, lower portion of 

 face pale piceous ; vertex smooth, impunctate ; encarpse 

 oblique, contiguous, subovate, carina distinctly raised ; 

 antennee more than half the length of the body, pale 

 fulvous, the second joint moderately thickened, ovate, 

 the third and fourth each about equal in length to the 

 second. Thorax nearly twice as broad as long; sides 

 parallel, scarcely rounded, anterior angles obliquely 

 truncate; above convex, smooth and shining, impunctate. 

 Elytra broadly oblong, slightly attenuated at the apex ; 

 convex, finely punctate- striate, the interspaces plane. 



Aphthona Deyrollei. 



Ovata, convexa, pallide picea, supra seneo micans ; facie 

 inferiori, pedibus antennisque fulvis, harum articulis 5 — 9 

 nigro-piceis ; thorace l^evi ; elytris tenuiter punctato- 

 striatis. 



Long. 1 lin. Hah. — Mexico, Teapa. 



Vertex smooth, impunctate ; encarpge well-defined, oval, 

 transverse, contiguous; carina elongate, distinctly ele- 

 vated; labrum and jaws nigro-piceous; antennse three- 

 fourths the length of the body, robust. Thorax more 

 than one-half as broad as long ; sides nearly straight, 

 slightly diverging from the base towards the apex, an- 

 terior angles thickened, obliquely truncate ; upper surface 

 transversely convex, smooth and shining, impressed with 

 a few minute punctures, visible only under a strong lens. 

 Elytra broader than the thorax, ovate, slightly attenuated 

 at the apex; convex, the humeral callus nearly obsolete; 

 surface finely punctate-striate, the interspaces plane. 



