■1- 



Thorax rather longer and broader than the head, widest near the middle, shining, 

 finely and very closely tuberculate or alutaceous, sides rounded and Blightly 

 margined, basal margin nearly straight, with the angles obtuse. 



Scutellum moderate, triangular, remotely asperate, with the interstices strongly 

 reticulated. 



Elytra short, shorter but rather broader than the head and thorax, widest beyond 

 the middle, rather deeply and remotely as with the interstices Btrongly 



ulated, sides moderately rounded, extremities broad and nearly straight. 



Abdomen conical, with four segments fully exposed, paler towards the apex. 



Legs rather long, bright yellow, posterior femora very robust. 



Under parts castaneous, with the mouth, coxre, and two apical segments of the 

 venter yellow. 



Habitat, Central America. Found by .Mr. Champion on Totonicapam, iu Guatemala, 



at an elevation of 10,500 ft. 



This species may be easily recognized by its dark colour, corneous integument, 

 and abrupt truncation of the elytra. 



Gen. IV.— PTERYCODES. Pi.. X. 



/ », M;i!th ws, Trans. Am. Ent. Soc. xi. p. 120, 1884; Biol. Cent.-Amer. 

 Col. ii. pt. i. p. 131, 1888. 



Corpus ovatum, valde convexum. 



Caput magnum, prominens, parte gulari magna, valde convexa; oculi modici ; 

 antennae sat longi ante oculos inserts. 



Antenna PI. X., fig. 7) longre, graciles, U articulate : 1 permagno; ovali, apice 

 truncato; 2 primo minori, antice contracto, apice abrupte truncato ; 3-8 

 elongatis, gracillimis, bases atque apices versus contractis, setis brevissimis 

 verticillatis ornatis; 9 precedenti forma simili sed majori; 10 nono multum 

 majori, ad basim valde incrassato, antice in collo .-at brevi producto ; 11 decimo 

 majori, el magis incrassato, obtuse Bubconico; tribus ultimis clavam graeilem, 

 moniliformem formantibus, atque Betis longioribus verticillatis instrucl 



Palpi maxiUares (PI. X., fig. 5, s) sat breves, l-articulati ; 1 sat longo, gracili ; 

 2 modico, pyriformi; 3 ovali, modice incrassato, apice extremo truncato; 

 4 sat longo, aciculato et sinuato, seta divergenti ante medium utriuque 

 instructo. 



Palpi labiates (PI. X., tig. 6, m) magni, valde elongati, triarticulati ; 1 longo, 

 cylindrico ; -2 cylindrico, primo multum breviori atque tenuiori ; 3 precedenti 

 multum minori, acute aciculato. 



Labrum (PL X., ti^. 3) magnum, semiovale. nut. medium constrictum, setis 

 tribus longis ad latus utrumque atque ordine curvato setarum breviarum in 

 disco instructum. 



Mandibula (PI. X., fig. l,t) validaa, acute uncinnatse, acie Bimplici, cone u-so 



convexo. deplanato, costis parvis, transversis armato. Lamella membranacea 

 magna, rotundata. Stipes robustus, in stylo longo, incurvato, acuto, externe 

 productus, atque dente basali sat parvo armatus. 



Maxilla (PI. X., fig. ."> i licse, quasi trilobate, lobo exteriori magno, robusto, ad 



basim dilatato, leviter incurval lio longo, articulo basali parvo, 



apicali elongate, Betis longis, • instructo; interiori 



modico, longe infra precedentem posito, dentibua aul quinque aut ses Iod 

 acutissimis, curvatis ad apicem armato. Stipes sat robustus, setis duabus 

 prselongis ad medium externe instructus. 



Mentum PI X., fig. 6, j oblongum, i firmatum, atque setis duabus 



validis ad unguium anteriorem utrumque instructum. 



Labium (PI. X., fig. 6, k) Bal magnum, suboblongum, Bub mento ferme occultnm, 



i. 2 



