CKYPTOCEPHALUS. 57 



of the elytra ; the spots are also differently placed in this species ; and the punctuation 

 is still finer. The Mexican specimens do not differ sufficiently to consider them different 

 species. A Zapote specimen is described and figured. 



42. Cryptocephalus auratus. 



Cryptocephalus auratus, Fabr. Syst. El. ii. p. 57 ; Suffr. Monogr. vii. p. 71, xii. p. 377, xv. p. 283 l . 

 Cryptocephalus aneus, Dejean, Cat. 3rd ed. p. 449. 

 Cryptocephalus cereus, Sturm, Cat. 1843, p. 304. 

 Cryptocephalus chalconotus, Mannerh. Bull. Mosc. ii. p. 312 (1843) 2 . 



Cryptocephalus viridis, Melsh. Proc. Ac. Phil. iii. p. 174; Haldem. Journ. Ac. Phil. ser. i. p. 256 

 (1849). 



Greenish aeneous ; lower part of the face, sides of the thorax, basal joints of the antennas, and the legs flavous ; 



elytra finely punetate-striate, indistinctly so laterally and posteriorly. 

 Length |-1 line. 



Hab. Noeth America, Pennsylvania 2 , California, Carolina, Texas. — Mexico, Yucatan 1 ; 

 Guatemala, near the city, Calderas, Duenas, Zapote {Champion). — Colombia 1 . 



This is, as will be seen by the above localities, a widely distributed and not uncommon 

 species, of which we have received numerous specimens from Guatemala. Suffrian 

 describes the antennae as yellow ; all the specimens before me have only the first six joints 

 of that colour, the rest being dusky. The elytra have a kind of brassy reflection, but 

 more of a greenish hue than yellowish ; but a variety exists with blue elytra. Two 

 specimens from Duenas are before me which are entirely dark green, with piceous legs, 

 and no trace of any yellow on the thorax ; but I do not think this difference sufficient 

 to consider it another species. 



43. Cryptocephalus subaeneus. 



Piceous below ; above light fulvous ; elytra rather finely punetate-striate, their posterior half more or less 

 greenish aeneous. 



Length | line. 



Head impunctate, with a distinctly impressed central line, the latter generally darker ; antennae as long as the 

 thorax, the first four joints fulvous, the rest black; thorax about twice as broad as long, with the poste- 

 rior angles distinctly produced into a point, surface shiniug fulvous, totally impunctate ; scutellum raised 

 posteriorly, black. Elytra finely punetate-striate on the disk, but the lateral striae deeply impressed, the 

 interstices there distinctly costate ; the apical portion of the elytra almost impunctate ; humeral callus 

 prominent : the colour is the same as that of the thorax ; but the basal and sutural margins are black, 

 and the apical part of the elytra is greenish aeneous, this colour extending across the suture to a greater 

 or smaller degree without touching, however, the extreme apex. Legs entirely fulvous ; underside piceous. 



Hab. Guatemala, Zapote (Champion). 



This very small species seems to be most nearly allied to C. exilis, Chevr. ; it is, how- 

 ever, of half the size only, and sufficiently distinguished by its colour. 



biol. cent.-amek., Coleopt., Vol. VI. Pt. 1, December 1880. i 



