1&18.] F. H. Gravely: Passalidae of the World. 47 



Vindex agnoscendus (Percheron). 

 Passalus agmscenaiis. Percheron, 1841, p. 22, pi. Ixxviii, fig. 2. 



Seven specimens from Mexico, 20-22-4 mm. long. 



This species may readily be recognized from either of the other two members of the 

 genus known to me by its free elytra, with coarsely, but not transversely punctured lateral 

 grooves. It is also characterized by the presence of a distinct trace of the lowest terminal 

 tooth of the right mandible, and of a distinct clypeofrontal suture. The inner tubercles 

 are situated upon this suture as in certain species of Pseudacanthus and Proculejus, and 

 the suture is most readily seen between them, where it replaces the ridge found in this 

 position in other species. 



Vindex sculptilis, Bates. 



Vindex sculptilis, Bates, 1886, p. 13. 



Numerous specimens from Guatemala, 20-3-23*0 mm. long. 



In this species there is no definite trace of the lowest terminal tooth on either mandible, 

 and there is no clypeofrontal suture. The elytra are free, and the punctures in their lateral 

 grooves are very large and transverse. 



Vindex synelytris, n. sp. 



Fig. VI, 5, p. 45. 



Three specimens from Guatemala, 23*8-25*o mm. long. 



The head and mandibles resemble those of V. sculptilis. The elytra are united in 

 the middle line, though their form is unmodified and the wings are well developed ; the 

 lateral grooves are coarsely but not transversely punctured ; their dorsal grooves are more 

 finely punctured than in either of the other two species. 



Genus PROCULEJOIDES, Kuwert, 1896, p. 221. 

 Type, Proculejus championi, Bates, 1886, pp. 5-6, pi. i, figs. 5-5«. 



Proculejoides championi (Bates). 



Proculejus championi, Bates, 1886, pp. 5-6, pi. i, figs. 5-5a. 



Numerous specimens from Guatemala, which show that the species is very variable 

 in size (length 23- 5-32*0 mm.), and that the ridges bounding the frontal area are variable, 

 both as to form and distinctness. 



The mandibles closely resemble those of Proculejus. The clypeus, though exposed, is 

 bent downwards as in Verres cavicollis and is far from conspicuous, not even being 

 prominent laterally as in that species. Both outer and inner tubercles are distinct, but 

 the frontal ridges are obsolete in front of the latter. The prothorax resembles that of 

 ChondrocepJialus granulifrons except for its greater convexity. The scutellum is not 

 distinctly punctured. The mesothoracic episterna and mesosternum resemble those 

 of C. granulifrons except for a ventral matt patch on each of the former, The 



