PIAZURUS. lo 
7. Piazurus maculipes. (Tab. I. figg. 25, 25a; 26, 27, 28, 28 a, vars.) 
Piazurus maculipes, Gyll. in Schénh. Gen. Cure. iv. p. 660". 
Piazurus saginatus, Boh. loc. cit. p. 661 ”. 
Piazurus guttularius, Chevr. in litt. °. 
Hab. Mexico!? (ex coll. Sturm, Flohr), Toxpam, Orizaba, San Andres Tuxtla, 
Yolotepec, Juquila (Sad/é), Teapa (H. H. Smith), Cerro de Plumas, Misantla, Jalapa, 
Tapachula (Hége); GuatEMALA, Panzos, Teleman, La Tinta, Lanquin, and San Gerdénimo 
in Vera Paz, El Tumbador, El Reposo, Cerro Zunil, San Isidro, Panajachel, Volcan de 
Atitlan, Mirandilla, Pantaleon, Zapote, Capetillo (Champion); Nicaragua, Chontales 
(Belt, Janson, Richardson) ; Costa Rica, Azahar de Cartago, Pozo Azul (Underwood), 
Rio Sucio (fogers), Talamanca (Biolley) ; Panama, Bugaba, Volcan de Chiriqui, David 
( Champion).—CotomBia, &c. 
A very variable and abundant insect, the extreme varieties of which are all more or 
less connected in the long series before me. The following are the leading forms :— 
a. The prothorax and elytra mottled with fulvous, cinereous, and black, the two prominences on the third 
elytral interstice black and conspicuous, the elytra usually with a small spot in front of the median 
prominence, another at the sides, and one at the apex of the fifth interstice, cinereous or whitish, the 
apices emarginate. (Fig. 25.) 
Mexico to Panama. The prevailing form in Mexico and Guatemala. 
8. The prothorax fulvous, lineate with black, and with a sharply-detined, oblique, interrupted, ochreous line on 
each side of the disc ; the elytra coloured as in @, the basal prominences large, the apices sharp. (Fig. 26.) 
? Piazurus bispinosus, Gyll. loc. cit. p. 654%. 
Costa Rica (Rio Sucio and Azahar de Cartago); two specimens. Colombia (Antioquia *). 
y. The prothorax and elytra mottled with fulvous and black, the elytra with conspicuous white spots (the 
anterior four arranged in an arcuate series across the middle), the basal prominences inconspicuous, the 
strie finely punctate, the interstices almost flat, the apices obtuse ; the mesosternal cavity very shallow 
behind. (Fig. 27.) 
Nicaragua (Chontales). Four specimens. 
6. The prothorax and elytra mottled with fulvous and black, the white spots on the latter sometimes wanting ; 
the elytra comparatively short, the interstices almost flat, the basal prominences well-developed, the 
apices obtuse. 
Nicaragua (Chontales) and Panama (Bugaba). Twelve specimens. 
e. The basal prominences of the elytra wanting, the apices emarginate ; the vestiture as ina. (Fig. 28.) 
Nicaragua to Panama. The commonest form in Chiriqui. 
The chief characters of P. maculipes are the feebly sinuate base of the prothorax 
and elytra, and the almost bare, sparsely punctate space down the middle of the body 
beneath. The two prominences on the third elytral-interstice are often inconspicuous 
or wanting, and when this is the case the third and fourth striz are less sinuous; the 
seriate punctures are sometimes coarse and the interstices more or less convex ; and 
the apex is sometimes truncate (P. saginatus) or sharply dentate (? P. dispinosus, Gyll.). 
The third joint of the funiculus varies in length. The 250 examples examined (about 
100 of which belong to the var. ¢) range from 63-12 mm. in length, and 33-63 mm. 
in breadth. 
