HARPALIN/E 221 



shorter than the third; prothorax with obtuse or rounded basal 

 angles. Nearctic regions Stenocellus 



Second labio-palpal joint narrower, more elongate and not flattened, 

 slightly shorter than the third; prothorax sinuously narrowed pos- 

 teriorly, the basal angles sharply defined and right. Central and 

 South American faunal regions *Goniocellus 



12 Second labio-palpal joint still longer, slender, about as long as the 

 third; mentum tooth still longer, very acute, as long as the lateral 

 lobes, the emargination of the mentum rather shallow; antennae with 

 only two glabrous joints, the third similar to the fourth in outline 

 and vestiture; prothorax sinuously narrowed basally, with sharp 

 angles. Atlantic faunal region Amerinus 



13 Elytra each with three series of substrial punctures as in the Seleno- 

 phorini; body very small, narrow and depressed, the prothorax 

 sinuously narrowed basally, with sharp angles as in the two preceding 

 genera. Atlantic regions Philodes 



Elytra each with a single series of substrial punctures, three to five in 

 number and adjacent to the second stria; body very small but not so 

 depressed as in Philodes, the prothorax sinuously narrowed basally 

 as in the three preceding genera. Atlantic regions. . . Goniolophus 



Elytra without series of substrial punctures but always, so far as known, 

 with a single discal puncture behind the middle of the elytra, as in 

 Harpalini and Anisodactylini 14 



14 Anterior, and frequently both anterior and middle, tarsi (c?) more 

 or less dilated and biseriately squamulose beneath; hind tarsi 

 always slender and filiform 15 



Anterior and middle tarsi not or but very slightly modified sexually; 

 body convex, oblong-oval 19 



15 Prothorax as in the four preceding genera, sinuously narrowed basally, 

 with sharply defined and prominent angles; basal foveae deeply 

 excavated as in Amerinus; body rather depressed. Palsearctic and 

 Nearctic (west coast) Anthracus 



Prothorax nearly as in Agonoderus, with obtuse and generally rounded 

 basal angles 16 



16 Fourth joint of the anterior tarsi (cf) emarginate, the middle tarsi 

 slender, filiform and similar in the sexes; body very small in size, 

 the head often greatly developed 17 



Fourth joint (cf ) strongly bilobed, the lobes separated by a very deep 

 sinus 18 



17 Elytra with distinct striae, the prothorax with rather definite though 

 obtuse basal angles. Nearctic and Palaearctic faunas. . .Acupalpus 



Elytra with vestigial striae and more truncate than usual at apex; pro- 

 thorax with broadly rounded angles; head very large in typical 

 forms. South African regions near the Cape *Agonidus 



1 8 Anterior and generally the intermediate tarsi (cf ) sensibly dilated 

 and biseriately squamulose beneath, the character somewhat in- 

 constant in regard to the middle tarsus, which is often undilated in 

 the male; hind angles of the prothorax always well rounded; hind 

 tarsi rather long and slender. Nearctic and Palaearctic faunas. 



Stenolophus 



