ijo Mimuirs of the I inliau Mu»riiin. [Vol.. Nil, 



with Verrfit uml Vrtiirius u•^IM'^•tivt•ly, ns \v«ml«l Imvt* In-un iiu;r« c(»nsi«ii-i,t f'n^-,il,,.,. 

 qiiitrnsis roiiM'«jU«'i>tly lKH-ome.H PatmUta qtiiteiutis. 



Ill Hpitc «»f tlu> minjilfX inaiuuT in wliirh vnritui"* specific rhann-tors art- iiil<rmiii;;ltil_ 

 the hiuH-ifs of Piiiisiihis ran Im* arranut**! in a .st'ri«'s Iradin^ up fmni fonns with the niarf^n 

 «)f the lieatl U'tween the outer tubenles .straight or faintly not<-he<l in the middle Une. the 

 inner and outer tuKenles usually nmrc or less widely separated, and the lateral areas of 

 the nietastenuini Usually narrow, smooth and hairless, to forms with the niar^^in of the hea<l 

 aliruptiv emaruinate in the middle line, the inner and outer tuiM>rrle.'< in e<intaet with one 

 another, together f«irming an ohlicpie edge, and the lateral areas of the mctastemum broad, 

 punctureil aiul hairy. The following descriptions have been pla<e<l in this order. 



Passalus nanus (Kuwert). 



Rhnhtcanlhoituji naniiii. Kuwort. 18W. p. I'M. 



One or two specimens from eaeh of the following localitioj* — (luatemaln, Ecuador, 

 and the Camn Valley in Cohunhia. lA>ngth 153 17-7 mm. 



This species is very like I'arillns robusttis, hut its antennae have oidy three well 

 developed hunellne, its frontal ridge>i are a])t to he more denticulate (especially in Cohnnhian 

 specinuMis). its eyes are smaller and less ])rominent, its pronotum and elytra are nuich n>ore 

 coarselv punctured, the punctures in the lateral grooves of the elytra being more or less 

 <listinctlv transverse, and its intermediate and hind tibiae are still m'»re .strongly spincd. 

 The epipleura are unpunctured :md hairless a>i in /'nrllhis r(>lniJilu,<i. 



Passalus rugosus, n. -p. 

 Fi- VII, 1 



Three .specimens from the C'auca Valley, Columbia. Length 21-0 21-8 mm. 



The central tid»ercle is relativi'ly nearer to the anterior margin of the head than in 

 J', luinun, the frontal ridge.s con.setjuently diverging in a more obtuse angle. The sides of 

 the pronotum are verj' coarsely punctured, but there are no coarse punctures nearer the 



1'' as in C. imiiim. nor are there any on the central area of the metasternum as in that 



■ -. The grooves of the elytra are even nu>re strongly punctured than in C fuiiius. the 

 punctures in the lateral gr<K»ves being distinctly transverse. The e])ipleura are punctured 

 and hairy. In other resjtects this sjjccics rosemblrs /'. )tainis. 



Passalus punctato-striatus. l'er< heron. 

 Fi«. \ 11. .' 

 /'.i«jiii/>M fninrlrtlo KtnaliiM. IVrchrron. IS.Vi. pp. "H-T'.t. pi. vi. fip. 1. 

 A large nund)er of specimens from (•uatemala and Mexico, .some of the latter Inking 

 from Oaxaca ; a few from San Salvaclor, Honduras (San Pedro Sida), Nicaragua, Cohunbia 

 and Surinam. Length 20-3- 28'3 nun., relative breaclth extremely variable; the distance 

 l>etween the inner and «)uter tuberele.s, and other characters, al.s4» variable t<» .some extent. 

 This species differs from the la.^t only in having the fnmtal area slightly larger, the 

 pronotum and the gr«K>ves of the elytra le.Hs coarsely punctured, the epipleura unpuncture«l 



