70 EKOTYLHLE. 



antennas fortiter bipunctato, illo punctis duobus nigris, uno in margine antieo, altero in medio basali j 

 elytris punctato-striatis; corpore subtus pedibusque piceo-brunneis. Long. 4| millim. 



B.ab. Guatemala, San Geronimo (Champion). 



Head yellow, finely but closely punctured ; mouth pitchy ; antennae black, the basal 

 joints short and stout, the third joint as long as the fourth and fifth joints together ; 

 maxillary palpi pitchy, the apical joint moderately wide. Thorax transverse ; sides a 

 little arcuate, narrowed to the front angles, which are acute and prominent ; basal 

 margin with hardly any marginal line ; in the middle of the front margin is a transverse 

 black spot, and one opposite on the basal margin. Elytra shining black, with fine 

 punctured striae, the sutural stria hardly bent at the scutellum ; the latter black. 

 There is only a single specimen of this insect, which has very much the appearance of 

 a Triplaw, but the club of the antennae is more like that of Mycotretus ; it bears some 

 resemblance to M. peruce, Crotch. The mentum is inconspicuous, and the genus is 

 doubtful. 



The following species is only known to me from description : — 



63. Mycotretus chontalesi, 



Mycotretus chontalesi, Crotch, Cist. Ent. i. p. 145 1 . 



" Ovatus, ochraceus, nitidus ; antennis sat elongatis, clava nigra, distincte tri-articulata ; capite distincte 

 punctato, antice leviter impresso ; tborace parce punctulato, lateribus rotundatis, basi utrinque sinuato, 

 leviter foveolato punctatoque ; scutello punctulato ; elytris albidis, Isevibus, punctato-striatis, singulis 

 maculis 2 oblongis parallelis in quartam basalem maculaque communi triangtdari (antice paullo producta) 

 nigris. L. c. 2| lin." 



" Allied to M. lepidus" 



Hob. Nicakagua, Santo Domingo in Chontales (Janson 1 ). 



The following two species cannot be considered as thoroughly investigated at present, 

 being possibly variable and the material not being sufficient of either: — 



64. Mycotretus nigricollis. 



Breviter oblongus, niger, capite, abdomine, elytris tarsisque runs ; capite protboraceque minute punctatis ; 

 elytris tenuiter punctato-striatis. Long. 5 millim. 



Eab. Mexico, Toxpam (#aZZ#). 



Allied to M. corallipennis, Crotch ; distinct by its rufous head and abdomen and the 

 finer punctuation of its elytra. Both species have the short depressed form of some 

 Tritomce. A single specimen. 



65. Mycotretus badius. 



Breviter ovatus, valde convexus, badius ; elytris fortius punctato-striatis, interstitiis minutissime punctatis, basi 

 marginibusque flavo-cinctis ; capite prothoraceque minute punctatis, fere lasvibus ; antennarum clava 

 nigra. Long. 5 millim. 



