STEIRARRHINUS. 995 
Var. a, The cinereous scales, above and beneath, in part or entirely replaced by others of a metallic-green 
colour ; the post-median fascia of the elytra divided into spots, the prothorax with a dark median vitta 
(fig. 27, 2 ).—Panama (Bugaba). 
Var. 3. Black or piceous, the cinereous scales replaced by others of a metallic-green colour, the elytral fascia 
aud spots very sharply defined, the head and prothorax with a dark median vitta.—Cosra Rica (Pozo Azul). 
Var. y. The scales in great part green, those on the head, legs, or sides of the body beneath more or less 
cupreous, the elytra without definite markings, the head and prothorax with a narrow dark median line 
or vitta [ 9 j (fig. 28).—Cosra Rica; Panama. 
Var. 6. The cinereous scales predominating above, the submedian darker fascia of the elytra reduced to one 
or two small spots and the other markings to small streaks or dots, there being often four small spots on 
each elytron [4-punctatus, Chevr., in litt.] (fig. 29, ¢).—Cosra Rica (San José, &c.). 
Length 53-81, breadth 13-3} millim. (¢ @.) 
Hab. Costa Rica (Van Patten), Pozo Azul (Underwood: vars. 6 and y), Puerto 
Limon (Lankester, in U.S. Nat. Mus.: var. vy), Piedas Negras, Atenas (U.S. Nat. 
Mus.), Volcan de Irazu (Rogers), San José (Biolley); Panama, Bugaba, Volcan de 
Chiriqui (Champion), Chiriqui (Z'rdétsch), Bocas del Toro (Robinson, tn U.S. Nat. Mus.: 
var. y). 
A common insect in Costa Rica and Panama*, the varieties with metallic-green 
scales being apparently confined to the ‘tierra caliente.” The form from the Volcan 
de Chiriqui is taken as the type; the specimens from the vicinity of the capital of 
Costa Rica are paler and have the dark markings less extended, often reduced to three 
or four small spots on each elytron or even entirely absent. The var. y superficially 
resembles Mimographus viridanus, Kirsch, from Bogota, but the latter wants the 
inter-antennal ridge and has long erect dark setz on the elytra, &c. 
4, Steirarrhinus serripes, sp.n. (Tab. IX. fig. 30, 2.) 
Q. Moderately elongate, nigro-piceous or piceous, the antenne sometimes ferruginous at the base; thickly 
clothed with rust-brown, pale brown, or brownish-cinereous scales, inermixed with minute, decumbent, 
hair-like scales, the elytra with numerous, rather large, scattered, whitish spots (three of which tend to 
form an oblique row across the disc of each elytron before the middle and four or five others a transverse 
subapical fascia); the abdomen with a space down the middle clothed with fine hairs only. Head and 
rostrum broad, narrowly sulcate to the v-shaped inter-antennal ridge, the rostrum widened towards the 
base; antenne moderately elongate, very slender, joint 2 of the funiculus fully twice as long as, and 
3-7 each about the length of, 1, 3-7 thickened at the tip, the club oblong-ovate, acuminate. Prothorax 
transverse, narrowed anteriorly, finely punctate, obsoletely canaliculate down the middle, and with a 
transverse sinuous groove towards the base. Scutellum small, triangular. Elytra broad, widened to the 
middle, sinuate at the base; rather coarsely punctate-striate, the interstices feebly convex. Fifth ventral 
segment with a short, impressed, oblique line on each side at base in Q. Anterior tibie rather stout, 
strongly sinuate, sharply unguiculate, and set with numerous sharp teeth on the inner edge. 
Length 74-94, breadth 37},-3;%5 millim. 
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 
Four specimens, varying in the colour of the scales, the whitish spots on the elytra 
less sharply defined and partly coalescent in the two individuals from the Volcan de 
* There are specimens of the var. 6 in the British Museum labelled “ Guat.,” but this is almost certainly 
due to a mistake in labelling. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 3, May 1911. 2 GG 
