CHAMPIONELLA.—PTERYCODES. 131 
basali fere recta, angulis obtusis; elytris brevibus, quam caput atque pronotum brevioribus, sed paullum 
latioribus, pone media latissimis, sat profunde et remote asperatis, interstitiis fortiter reticulatis, lateribus 
modice rotundatis, apicibus latis fere rectis ; abdomine conico, sat acuto, segmentis quatuor omnino apertis, 
apicem versus dilutiore; pedibus sat longis, late flavis, femoribus posticis valde robustis; antennis modicis, 
obscure flavis. Long. corp. pa lin. =0°63-0°75 millim. 
Head prominent, rather long, finely alutaceous; eyes rather small, not prominent; antenne moderate, dusky 
yellow; labrum yellow; palpi large, pale yellow. Thorax rather longer and broader than the head, 
widest near the middle, shining, lightly and very closely tuberculate or alutaceous; sides rounded and 
faintly margined ; basal margin nearly straight, with the angles obtuse. Scutellum moderate, triangular, 
remotely asperate, with the interstices strongly reticulate. lytra short, shorter but rather wider than 
the head and thorax, widest behind the middle, rather deeply and remotely asperate, with the interstices 
strongly reticulate; sides moderately rounded ; apices nearly straight, slightly oblique towards the suture. 
Abdomen conic, rather acute, with four segments fully exposed, paler towards the apex. Legs rather 
long, bright yellow, the posterior femora very robust. Underparts castaneous, with the mouth, coxe, and 
the apical two segments of the venter yellow. 
Hab. Guatemata, Totonicapam 10,500 feet (Champion '). 
This insect is distinguished from any species of Ptinella, apart from anatomical 
differences, by its convex and corneous integument, and by the abrupt truncation of 
its elytra. 
PTERYCODES. 
Pterycodes, Matthews, Trans. Am. Ent. Soc. xi. p. 120 (1884). 
Antenne 11-jointed, the 9th joint scarcely incrassated, Palpv: maxillary rather short, 4-jointed, the penul- 
timate joint ovate, truncate at the apex, the terminal joint large and sinuated; labial large and long, 
3-jointed—1 and 2 cylindric, 1 much broader than and nearly twice as long as 2,3 much smaller than 2, 
conic. Lingua long and narrow, its apex slightly bifid, and with a strong recurved seta on each side 
near the points. Labiwm moderate, with the anterior margin nearly straight; paraglosse robust, erect, 
slightly divergent, the apex acute, incurved, and with a strong seta on the outside near the point. Mentum 
oblong, with two strong sete on the outer side of each anterior angle. Mandibles moderate, rather 
hooked, the prebasal angle obtuse, moderately denticulated at the back; lamella membranacea moderate, 
almost circular ; stipes rather small, produced into a long and robust curved process behind the mandible. 
Mawille 3-lobed ; outer lobe corneous, formed by a long robust pointed process of the stipes; middle lobe 
coriaceous, 2-jointed, furnished at the apex with a long brush of strong and long sete ; inner lobe corneous, 
rather small, placed much lower than the middle one, armed at the apex with five or six sharp incurved 
teeth. Labrum large, semioval, slightly constricted before the middle, furnished with three strong sete on 
each side, and a curved row of smaller seta beyond the middle. Head large and prominent. Pronotum 
large, slightly constricted near the base. Scutellwm triangular. ZHlytra rather long, truncate at the apex. 
Abdomen moderately elongate, with three segments exposed. Prosternum moderate, falcate ; episterna 
small, distinct; epimera rather large; coxal cavities contingent, broadly enclosed posteriorly. Meso- 
sternum rather large, slightly carinated, the carina produced between the middle coxe ; episterna large, 
humeral; epimera very large, reaching the coxal cavities. Metasternwm rather short, not extending to 
the sides; episterna and epimera large, and very broad. Venter composed of six segments, the basal and 
apical segments longer than the intermediate. Legs long and slender, the tarsi 3-jointed, with the basal 
joint twice as large as the second, and the terminal joint long and slender, the claws slender: anterior 
coxe prominent and contingent, the tibie strongly dentate on the inner edge; intermediate coxe divided 
by the carina, the tibie moderately dentate on the inner edge; posterior coxe widely distant, broadly 
laminated, the lamina triangular, the tibiz faintly denticulate and with two strong spurs near the apex 
on the inner edge. 
This genus seems intermediate between Pteryx and Ptinella; from the former it 
S* 2 
