HARPALIN^E 207 



tained that it would be better placed in Anisodactylus . The 

 former author came the closer to the real affinities involved but, as 

 there are wide departures from both Anisotarsus and Anisodactylus, 

 the best solution seems to be the erection of a distinct genus for 

 the Harpalus mexicanus of Dejean and one or two allied species. 

 The mentum is definitely and distinctly toothed as in Anisotarsus, 

 the ligula long, slender, gradually but very feebly enlarged apically 

 and not quite so long as the larger and very broad, apically very 

 broadly obtuse, paraglossse. The labial palpi are thick, with the 

 third joint barely at all shorter than the second and rather rapidly, 

 obtusely acuminate at tip. The terminal spur of the anterior tibiae 

 is very slender and perfectly simple, and the hind tarsi are rather 

 short, pubescent above, with the basal joint shorter than the next 

 two, though distinctly longer than the fifth, which is unusually 

 short. It will be noticed that this formation of the anterior spur 

 and hind tarsi is very different from the corresponding characters 

 in Anisodactylus, which, in conjunction with the broad obtuse 

 paraglossae and the mentum tooth, shows that the species cannot 

 properly be placed in that genus, although more closely resembling 

 it to external view and in its compact robust form, than it does 

 any other genus of the tribe. Stilbolidus is very distinct also in 

 having no trace of the usual discal puncture of the elytra, the 

 presence of this puncture being an exceedingly constant character 

 in the Anisodactylini, as stated under Anisodactylus, and its absence 

 in lodingi Schf., is an extraordinary exception to the general rule. 

 There seem to be three species at hand as follows: 



Body much stouter in build and larger in size, the elytral intervals feebly 

 convex in both sexes, polished (cf) or strongly alutaceous (9). 

 Color deep black throughout, the tarsi piceous, the antennae blackish 

 throughout; lustre (cT) very highly polished and distinctly violaceous 

 throughout above, or ( 9 ) similar but scarcely at all violaceous and 

 with the duller elytra deep black; head three-fifths as wide as the 

 prothorax, with well developed prominent eyes and rather large, 

 very deep fovese, the surface impunctate, very smooth throughout 

 (cf) or rugose anteriorly (9 ); prothorax transverse, more than one- 

 half wider than long, the sides moderately rounded, feebly converging 

 and becoming just visibly sinuate basally, the angles slightly obtuse 

 but very sharply marked and minutely subprominent; base trans- 

 verse, slightly wider than the very feebly sinuate apex; surface very 

 smooth and without any sort of sculpture throughout, finely reflexed 

 but with a rather thick bead at the sides, the stria very fine and 



