118 PHYTOPHAGA.—-SUPPLEMENT. 
interstice (extending to two interstices at the middle), and the flavous spot at the apex 
is of transverse shape. 
52. Cryptocephalus dolorosus. (Tab. XX XVII. fig. 19.) 
Black, the basal joints of the antenne and the anterior and lateral margins of the thorax fulvous; thorax 
finely rugose ; elytra deeply punctate, with anteriorly uninterrupted striz, fulvous, a spot at the shoulder 
and a large subquadrate discoidal patch, black. 
Length 23 lines. 
Head closely and rather irregularly punctured, black; labrum fulvous; eyes not closely approached ; antenne 
more than half the length of the body, black, the basal two or three joints sometimes fulvous ; thorax 
more than twice as broad as long, but moderately narrowed in front, very closely punctured, the interspaces 
slightly rugose, black, shining, the anterior margin narrowly (more widely.at the middle) and the lateral 
margin reddish-fulvous, this colour widening at the anterior angles into a subquadrate spot; scutellum 
short, black; elytra subcylindrical, scarcely narrowed posteriorly, the punctures deep and regular, the ten 
rows present, the fifth and sixth abbreviated at some distance from the apex and, as well as the second 
and third and the seventh and eighth rows, joined at their ends, the interstices slightly transversely 
wrinkled, the surface of a bright reddish-fulvous colour, a small spot at the shoulder, and another (in one 
specimen) near the apex, black, the middle of the disc occupied by a large common subquadrate anteriorly- 
divided black patch which extends downwards to or beyond the middle, but does not quite reach the base ; 
underside and legs black, finely pubescent, the tarsi obscure fulvous; prosternum not produced anteriorly, 
much longer than broad, the posterior margin produced into a short and blunt tooth on each side. 
Hab. Mexico, Las Vigas ({ége). 
The very regularly punctured strie and the colour of the upper surface seem to place 
C. dolorosus in Suffrian’s seventeenth group; the colour of the thorax and the marking 
of the elytra will separate this species from any of its allies. 
53. Cryptocephalus flavofasciatus. (Tab. XX XVII. figg. 20; 21, var.) 
Metallic dark blue; thorax impunctate, the anterior and lateral margins yellow; elytra regularly and deeply 
punctate-striate, metallic blue, a lateral longitudinal band, narrowed posteriorly, bright yellow. 
Var. Entirely blue or with indications only of the lateral band. 
Length 2-22 lines. 
Head entirely blue, depressed between the eyes, closely and finely punctured ; antenne two-thirds the length 
of the body, black, the basal joint more or less fulvous beneath ; thorax twice as broad as long, narrowed 
in front, the posterior angles not much produced, the posterior margin only slightly concave at the sides, 
the surface extremely finely punctured, with a slight oblique depression on each side at the base, the 
anterior margin and the posterior half of the lateral margin very narrowly bright flavous, this colour 
greatly extended at the anterior angles; elytra cylindrical, deeply and closely punctured, the third and 
fourth and the seventh and eighth rows united at the apex, the yellow lateral stripe is formed thus—it 
commences at the middle of the base and extends to the apex, but its posterior is only half the width 
of its anterior portion, so that the lower half of the lateral margin and a small humeral spot remain 
of the ground-colour; underside and legs metallic blue, the sides of the breast finely pubescent ; pro- 
sternum longitudinally depressed, its posterior margin straight. 
Hab. Mexico, Ciudad in Durango (f/ége, Forrer). 
Of this handsome Cryptocephalus many specimens were obtained by Herr Hége, not 
only of the type but of the variety also; in the latter there are generally more or less 
distinct traces of the flavous colour at the sides of the thorax and of the elytra, but in 
some examples the flavous colour is obliterated and the insect is entirely dark blue. 
