310 PHYTOPHAGA.—SUPPLEMENT. 
4. Homophyla pallida. (Tab. XLII. fig. 21.) 
Ovate, convex, pale fulvous; the seventh to the ninth joints of the antenne black, the other joints flavous ; ' 
thorax twice as broad as long, the sides straight, the surface impunctate ; elytra very minutely punctured 
in rows ; posterior tibiae: robust, slightly curved, deeply channelled, and dentate before the apex. 
Length 1 line. 
Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith). 
_ H. pallida cannot be mistaken for a pale variety of A. variabilis, the coloration of 
the antenne being different; but it is possible that the normal colour of the species is 
black or piceous. A single specimen. | | 
SPHRODERMA. (To follow the genus Homoply/a, p. 393.) 
Spheroderma, Stephens, Il. Brit. Ent., Mand. iv. p. 328 (1834). 
Spheroderma, confined, so far as our knowledge goes, almost entirely to the Old 
World, has a single species in North America. . The only representative of the genus 
obtained by Mr. Champion does not seem to differ structurally from the European 
forms, except in its more oblong (instead of rounded) shape and metallic blue 
coloration. 
1. Spheroderma cerulea. (Tab. XLII. fig. 22.) 
Oblong, subcylindrical, convex, black, above dark metallic blue; thorax very closely and finely punctured ; 
elytra strongly punctate-striate. 
Length 1 lne. 
Head entirely impunctate, without frontal elevations, but with a narrow oblique ridge on each side above the 
insertion of the antennsw; clypeus swollen, triangular, extending upwards in the form of a ridge between 
the antenns ; antenne about half the length of the body, ‘black, the second and third joints more or less 
fulvous, equal in length but not in thickness, the fourth scarcely longer, the others stouter, gradually 
thickened ; thorax twice as broad as long, rather convex, the sides nearly straight, the anterior angles: 
oblique, not thickened or produced, the posterior margin sinuate on each side, the surface dark blue, 
closely and finely impressed with somewhat oblong punctures, the basal lobe rather broadly rounded ; 
scutellum broad, small; elytra strongly convex and subcylindrical, dark blue, very regularly and moderately 
strongly punctured, the punctures distinct to the apex ; underside and legs black; posterior femora some- 
what strongly incrassate ; the first joint of the posterior tarsi as long as the following two joints together ; 
claws appendiculate ; prosternum subquadrate, coarsely punctured ; mesosternum extremely short ; meta- 
sternum strongly punctured anteriorly ; abdominal segments sparingly punctate. 
Hah. Panama, Bugaba in Chiriqui (Champion). 
PHYDANIS. (To follow the genus Spheroderma.) 
Phydanis, Worn, Trans. Am. Ent. Soc. xvi. p. 198 (1889). 
This genus has very little affinity with any of the known groups of Halticine. Its 
-author places it in the Aspicelites of Chapuis; but in this I cannot agree with him, 
the shape, structural characters, punctuation, &c., being quite foreign to that group. 
Dr. Horn, in his diagnosis of the group “ Aspicele” (op. cit. p. 195), gives the antenne 
