SYSTENA.—CREPIDODERA. 283 
40. Systena sulphurea. 
Entirely pale greenish-yellow, the terminal joint of the antennzy excepted ; thorax sparingly, the elytra more 
distinctly and closely, punctured. 
Length 14-2 lines. 
Head impunetate, the frontal elevations indistinct; antennz extending to a little beyond the middle of the 
elytra, pale flavous, the terminal joint fuscous, the fourth joint longer than the third, the apical joints 
thickened ; thorax strongly narrowed at the base, with a narrow, distinctly impressed, transverse groove, 
sparingly and finely punctured ; elytra punctured in closely approached rows. 
Hab. Mexico, Chilpancingo in Guerrero (H. H. Smith), Yautepec (Flohr). 
Distinguished by the uniform sulphur-yellow colour of the upper- and undersides. 
Numerous examples. 
CLAMOPHORA (p. 339). 
Clamophora salvini (p. 339). 
As stated, anted, p. 259, this name is a synonym of Lactica frontalis. 
CREPIDODERA (p. 342). 
1 (a). Crepidodera amplicollis. (Tab. XLII. fig. 9.) 
Black ; the first joint of the antenne, the head, thorax, and femora fulvous; thorax distinctly widened in 
front, finely punetured, with a very deep transverse sulcus; elytra bluish-black, finely, closely, semi- 
regularly punctate-striate. 
Length 1# line. 
Of narrow, parallel shape; the head impunctate, the frontal tubercles very strongly developed, broad, the 
labrum fulvous, the palpi obseure piceous ; antennse rather stout, extending to about the middle of the 
elytra, black, the first joint fulvous, thiek, the second joint about one third shorter than the third, not 
longer than the fourth; thorax about one half broader than long, the sides concave at the base, strongly 
widened before the middle, the surface sparingly and very finely punctured, the transverse sulcus very 
deep and bounded at the sides by an equally deep longitudinal groove, a shallow longitudinal depression 
also extends upwards from the middle of the base; scutellum piceous; elytra dark bluish, wider at the 
base than the thorax, without any basal depression, rather finely but distinctly and irregularly punctate- 
striate, the rows of punctures closely placed, partly geminate, quite irregular at the apex ; underside black ; 
femora obscure fulvous, slightly stained with piceous; the first joint of the posterior tarsi as long as the 
following three joints united ; claws widely separated and appendiculate ; prosternum comparatively broad ; 
anterior coxal cavities closed; the four posterior tibiee with a distinct spine. 
Hab. Mexico, Mochitlan in Guerrero (Baron). 
Asingle specimen. This species differs from most others of the genus by the thorax 
being strongly constricted behind and having a very deep basal sulcus; the intermediate 
and posterior tibiee are each armed with a spine. 
Crepidodera guatemalensis (p. 343). 
To the localities given, add :—Nicaraeva, Leon (Sal/é). 
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