SOEANUS.— PASS ALUS. 21 



interstitiis subsequalibus, sat planis ; metasterno basi utrinque punctulato-pubescenti, apice utrinque plaga 

 grosse punctate* ; antennarum clava breviter lamellata. 

 Xong. 35 millim. 



Hab. Mexico, S.W. Yucatan (Br. Horn, coll. Bates). 

 One example. 



8. Soranus (?) intergeneus. 



S. recticorni similis, sed differt clypeo antice deplanato, polito, postice leviter vel haud transversim carinato et 

 post carinam linea impressa ; cormi verticis fere sicut in S. recticorni sed apice minus libero et elevato ; 

 thorace angulis anticis rotundatis, lateribus grosse, et disco plus minusve grosse punctatis, sulculo marginali 

 antice flexuoso, lato, grosse punctato ; elytris punetato-striatis, interstitiis lateralibus paullo angustioribus ; 

 metasterno disco haud planato, basi utrinque punctulato-pubescenti, apice utrinque parum punctato; tibiis 

 intermediis extus l a 2 a que spinosis, absque lobo hirsute, carina gradatim paullo elevata et sparsim ciliata. 



Long. 21 millim. 



Hab. Mexico, Orizaba (Salle) ; Guatemala (Salle). 



Five examples. This species bridges over the difference between the genera Soranus 

 and Popilius, which Kaup places in distinct subfamilies. The antennal leaflets are 

 somewhat elongated, as in Soranus recticornis and S. eclipticus, and not shorter than 

 in some species of Popilius. As it agrees so closely in the form and position of the 

 cephalic elevations with Soranus, it is better left, for the present, in the same genus 

 as that species, notwithstanding the flattened front edge of the clypeus. 



PASSALUS. 

 Passalus, Eabricius, Ent. Syst. i. 2, p. 240; Kaup, Monogr. der Passal. p. 105. 



Kaup included four species only in the genus Passalus as narrowly restricted by him. 

 As the P. cornutus of the founder of the genus is included among the four, the appli- 

 cation of the name to the group may be considered as justified, although that species 

 was not known to Fabricius when he originally treated of the genus, being first 

 mentioned in his subsequent work, the ' Systema Eleutheratorum.' 



1. Passalus cornutus. 



Passalus cornutus, Eabr. Syst. El. ii. p. 256 (1805) \ 



Passalus disiinctus, Weber, Obs. Entom. i. p. 79 (1805) ; Percheron, Monogr. p. 99, t. 7. f. 6 ; 

 Kaup, Monogr. p. 106, t. 7. f. I 2 . 



Hab. North America 1 2 . — Mexico 2 . 



2. Passalus zodiacus. 



Passalus zodiacus, Truqui, Rev. & Mag. Zool. 1857, p. 312 1 ; Kaup, Monogr. p. 106. 

 Hab. Mexico \ Orizaba (Salle), Jalapa (Morrison). 



