CERAMBYCID.E 229 



where they are about a fourth wider than the prothorax, parallel, with 

 feebly arcuate sides and conjointly broadly subparabolic apex, each 

 rounding internally, with the sutural angle obtuse and barely at all den- 

 ticulate; surface finely, obsoletely punctato-rugulose, with the two 

 raised discal lines evident; median line of the metasternum fine and but 

 feebly impressed; met-episterna broad and parallel; anterior tibiae with 

 the everted external distal angle spiniform and apical. Length 42.0-47.0 

 mm.; width 13.8-16.0 mm. Arizona, Levette. 



The male is not at hand, but the species differs from serrulatus 

 Lee., in the stronger and denser sculpture of the head, paler color- 

 ation and in having the serrulation of the sides of the prothorax 

 composed of small but extremely acute spiniform teeth and not 

 more nearly in the nature of crenulation, as it is in serrulatus. 

 The length of serrulatus is given by Leconte as 2.3 inches or 

 57-5 mm. 



Of the Mexican Mallodonopsis corrosa Bates, I have a single 

 male example from Nata, Panama; it is apparently smaller than 

 any known to the describer, being only 25 mm. in length and the 

 elytra, having the three broad abbreviated furrows on each very 

 distinct, are rather coarsely though shallowly and not closely 

 punctate, scarcely "punctulate" as stated of the more typical 

 corrosa. Mallodonopsis is placed in a different group from Mallodon 

 and allies by Lacordaire, though differing principally in some 

 rather inconstant crural characters. 



Callipogon senex Dup., is before me in a good series of three 

 males and four females, sent by Wittkugel and collected in Hon- 

 duras. The most conspicuous variation among the males is in 

 the form of the scutellum, which, in the large and fully developed 

 examples, is very transverse; in a smaller specimen with short man- 

 dibles, the scutellum is barely wider than long. In the female 

 there is some variation in sculpture, the elytra being smooth and 

 dull in one example, but there is still more variety in the degree of 

 narrowing of the prothorax from the post-medial angle to the apex, 

 this being very pronounced in the example with smooth elytra. 

 On the plate accompanying Nonfried's article on Callipogon (Berl. 

 Ent. Zeit., 1892, p. 17 et seq.), a most remarkable mistake seems 

 to have occurred, one in fact of extremely grotesque nature; for the 

 head of his type of friedldnderi, having become detached from the 

 body had evidently been gummed in place upside down, and is not 



