134 MEMOIRS ON THE COLEOPTERA 



Tribe SELENOPHORINI. 



In this tribe each elytron invariably has three series of setigerous 

 punctures or fovese, usually closely adjacent to striae 2-5-7, as m 

 Philodes of the Acupalpini; I know of no instance where there are 

 less than three series; in the Acupalpini, however, there is a genus 

 having but one series and in Stenomorphus there are two series on 

 each elytron ; the mentum is usually edentate and the ligula slender. 

 The genera known to me may be denned as follows: 



Basal joint of the hind tarsi notably long as in Pteropalus of the Harpalini ; 

 lateral line of elytral foveae always widely interrupted 2 



Basal joint short, as in most species of Harpalus, the basal joints dimin- 

 ishing slowly in length; lateral line of fovese not interrupted 9 



2 Middle tibiae (cf) not arcuate, the anterior tarsi always and the 

 intermediate generally though not always dilated as for example 

 in Selenophorus riparms 3 



Middle tibiae (c?) always arcuate, with its inner margin serratulo-den- 

 ticulate 



3 Basal joint of the anterior tarsi not peculiarly modified 4 



Basal joint greatly enlarged, especially in the female, as noticeable also 

 as a reversional character in some of the Anisodactylini (Gynan- 

 drotarsus) 7 



4 Hind tarsi very slender, nearly as long as the tibiae and always with 

 fine sparse hairs on the upper surface; dorsal surface of the body more 

 or less depressed as a rule 5 



Hind tarsi always much shorter than the tibiae, the abbreviation of joints 

 2-4 generally especially apparent, their upper surface usually more 

 closely and evidently puberulent 6 



5 Body oblong-oval, the elytra frequently opalescent and sometimes 

 with fine sparse diffused punctulation; never opaque in the female; 

 ligula slender, generally a little shorter than the paraglossae, which 

 are rather broad and obliquely subtruncate at tip; labial palpi 

 usually somewhat stout, with the second and third joints equal in 

 length. North and South America. [Type Selenophorus opalinus 

 Lee.] Hemisopalus 



Body oval or elliptical, with Celia-like habitus; ligula slightly shorter 

 than the paraglossae, which are long and slightly diverging; third 

 palpal joint a little shorter than the second. Atlantic and Gulf 

 coasts of North America Celiamorphus 



6 Body Harpalus-Yike in habitus, generally strongly convex; prothorax 

 never cordiform, the base never narrower than the apex; elytra 

 with the series of punctures usually regular and adherent to the striae, 

 as in the two preceding genera, rarely if ever opalescent, the scutellar 

 stria distinct; ligula about as long as the paraglossae, which diverge 

 slightly at apex; second and third joints of the labial palpi slender 

 and subequal in length, the third gradually acuminate. North and 

 South America. [Type Carabus palliatus Fabr. (impresses Dej.)]. 



Selenophorus 



