32 Mtitu/irs of till- litdinii Mugeutn. [VoL. \ II, 



Proculejus sarlori, K.iu|). 

 Vifi IV, l.V ,.. JJ 



I'riM-iilfjim .SiiiIkiii. Kihi|'. \)<<'>Hh, |). IT 



One .spcfinicn without locality record. Lengtli ii'5 nun. 



The Inbnim is concave in front, but not »o Htrongly an in /'. pubicoafia. The clypeus is 

 Mrnight or lightly com-nvr, and i.s united with the well developed frontal tubenh's a little 

 di.stance from eaeh enti. The frontal tulien le> are united l»v well developed frontal riilges 

 to the central tubercle, which is situate<l a little in front of the middle of the head ; this 

 tulxTide is .nnuill and upwardly directed, and has no free apex. The scutellum is sparsely 

 and sonu'what finely punctured, espeiially in front. The me.sothoracic episterna are 

 punctured except in the posterior angles, and are glossy exce])t for an oval patch behincl the 

 lower margin. In nil other respects this species resembles the last, except that the 

 mesostemal scars are shallower and that the elytral grooves are if anything even more 

 coarsely punctured. 



Proculejus truquii, K.uiy. 



Proculrjiis Truquii, Ktiiip, I8(if</j. pp. 1<'. 17. 



One spcj-imen frcm Mexico, 31 mm. long. 



ProruU'jus truquii is much broader in proportion to its length ilian is cither of the two 

 preceding members of the genus. The head is ornamented much as in /'. sartnri, but the 

 frontal area is .somewhat narrower and the central tubercle is situated more in the middle. 

 The pronotum resembles that of the two ])receding .species. The .scutellum bears a few 

 oKscure punctures. The groove.s of the elytra are very much broader and more coarsely 

 punctured than in either of the pre<eding s])ecies. being about as wide as the ribs at the sides, 

 and about half as wide above, the ])unctures in each groove being much broader than the 

 spaces between them. In all other respects P. trtujuii resembles /'. sartnri. 



Subfamily riUH'l I.l S AE. 

 .\Imost all members <»f this .subfamily have the dypeus exposed as in the 

 I'seudacanthinae ; but it is fu.sed with the frons instead of .separated from it by a distinct 

 suture. Faint traces of this .suture, as of the outer tubercles, m.iy perhaps be recognized in 

 the genus Arror, which is probably the most primitive genus of the family. From this genus 

 the exten.sive genus Vfturius may easily be derived ; and this appears to have given ri.se to 

 two divergent lines of de.scent, culminating respectively in the flightless genera Platycerres 

 and PriH-ulua. The fonner, in which the clypeus is completely hidden, is connecte*! to 

 Vetunui through the genus IVrrc.s. in which all .stages of the di.saj)pearance of the cly])eus 

 may be traced (compare fig. v. 111."., p. 34). The latter, in which the .specializetl 

 features as.s<K-iate<l with flightless .-pec ics' reach their highest development, has the clypeus 

 expi»se<l, and is connecte<l to Vetunus by the genus Publius. a genus which only tliffers 

 from Hpecien of Vcturius with the twd lowest terminal teeth Ixisal by its fu.se<l elytn» an«l 

 reduced wings. 



* Soo kbove pp. 4'& 



