56 Mnnoir.s »/ itic ludrntt Muirutn. (Vol. \I|. 



iioarcMt the HUtiiro lining unpunctureil. tli<> fdiirili cnntaining more or Iohm obMilete 

 ]>iiii(-tiiriv«. thf fifth mill >ixth coiiUtining strong nmiiil puiictiin-t. and the .Wfiitli, (>ightb 

 and nintli i-Dntaining larj»iT uiu\ more or less tran.HVrr.M' ptinc-tiircN. In other resptnts 

 this »i>e<-it'H rf.HO!ul»los /'. afjinis. 



Passalus recticlypeatus (Kuwort). 



I'tlrffH* riWir/y/Kfi/i*, Kuwcrt. I8W. p. Utc.'. 



Four sporimons, without locality ri'»or«l. Lrngth 23-3 24-7 mm. 



This .sptH'ifs is vi'rv liki' tin* pri-« i-ding one, l)Ut is smaller and has the apex of the central 

 tuberele acute, free and dire<'ted forward.s above the finely roughened but unpunctureil 

 frontal area, the inner tubercles being obsolete or absent. The posterior intermediate 

 areas of the metasternum are almost or <|uite unpuncture<l ; the lateral areas are more f»r 

 less rugo.se and bear a few fine hairs. Th«' lateral grooves of the elytra, though much more 

 .strongly punctured than the dorsal, are le.ss strongly punctured than iu I'assaluscat/i' rin.i. 

 which this species resentbles in other respects. 



Passalus eucadoreusis, n. sp. 

 Fig. VII. 9. p. .'iS. 

 One .specimen from Kcuailor. 20-4 mm. long. 



In this species the cephalic tubercles an<l ritlges resemble those of /'. rathvnmte, except 

 that the central tubercle is weaker; otherwise the insect resembles /'. recticlypeatus, except 

 tiiat the anterior margin of the head is slightly promijinif in the middle line. an«l that the 

 metastenium and elytra are entiidv linirle>-.. 



Passalus curtus (Kaup). 

 Ki-. VI I. 10. ,, .-,:!. 

 Petrrju* curlua. Kaiip. ISfill. p. 3M. 



f)ne specimen from the ('au«a Valley, 23-3 mm. long. 



The free apex of the central tubercle is longer than in P. rrrtirli/fwatus. but the frontal 

 ridges are less strongly elevated and become f)bsolete in front. The frontal area is 

 irregidarly marked with coar.se punctures. The sides of the pronotum and the jxi.sterior 

 internuiliate areas of the metastenunn are .somewhat more extensively pun<ture«l. The 

 meMisternal »<'ars and the lateral areas of the meta.sternum are finely puncture<l and 

 hair%". The epipleura are without, and the shoidders of the elytra almost with«iut, 

 hair-lwaring punctures. The puncturing <if the dorsal grooves of the elytra is about 

 a.H coarse as that of the lateral grooves. In other respects this .spe<"ies resembles 

 /'. rw/iWy/-"'"> 



Passalus gracilis (Kaup). 



Prtrrfiif i/fiirtim, Knup. iHtii*, p. ',U<. 



One .specimen fmm Tolumbia, i6'5 mm. long. 



A much smaller spwies than the prece<Iing, with more flattens! central tul>ercle, 

 conical forwardly directetl parietal ridges, somewhat more distinct frontal ridges, smooth 



