LEMA. 39 
dark blue or violaceous, deeply depressed below the base, strongly punctured anteriorly and finely so 
posteriorly, the ninth row interrupted. 
Length 2} lines. 
Hab. Mexico, Toxpam (Saillé), Jalapa, Cordova (Hége); GuaTemaua, Llano grande 
(mus. Stuttgart); Costa Rica (Van Patten). 
It is with considerable hesitation that I describe the present insect as new, it being 
extremely near to two of the species included by Lacordaire in his twenty-ninth group ; 
yet I cannot identify it with either. In Z. sall@i the antenne are entirely black (the 
first two joints are sometimes slightly stained with fulvous below, but never above), the 
species differing in this respect from L. dichroa, L. tricolor, and others; the head is 
rufous (with the exception of the black epistome); the anterior margin of the thorax is 
acute at the sides, that is, a small pointed tubercle is visible when the insect is viewed 
from above (this is absent in most of the other similarly-coloured species); the elytra 
have a deep basal depression (absent in L. plumbea); and the legs are entirely black, 
with the exception of the extreme base of the femora being sometimes slightly stained 
with fulvous. JZ. guatemalensis has a similar tubercle at the sides of the thorax, but 
is smaller in size, and the elytra have the depression at their base shallower (the base 
itself in consequence less elevated) and their punctuation much stronger; the two 
species, however, are very closely allied, and it is possible that they may not be really 
distinct. 
Numerous specimens. 
59 (a). Lema maculipennis. 
Lema maculipennis, Clark, Cat. Phyt., App. p. 54°. 
Hab. Mexico, 'Tuxtla, Playa Vicente (Sallé), Teapa }. 
This species was overlooked by me in the earlier part of this work; it should follow 
L. inquinata, Lac. Clark makes no mention of a deep depression below the base of 
the elytra, within which the transversely shaped spot is placed. I have compared the 
two specimens in the Sallé collection with the type. 
60 (a). Lema foveipennis. 
Black ; above metallic dark blue; antennx long and slender; thorax deeply constricted at the middle, impunc- 
tate; elytra with a deep intra-humeral and a deep transverse basal depression, the base elevated, somewhat — 
deeply punctured, the interstices costate at the apex. 
Length 13-2 lines. 
Head rather broad, constricted behind the eyes, the lateral grooves very deep; the vertex with two rounded 
tubercles, which are divided by a longitudinal groove ; eyes slightly notched, very large and prominent, the 
space between them with a distinct fovea; antenne nearly two thirds the length of the body, shorter in 
the female, black, the third and fourth joints equal; thorax slightly broader than long, deeply constricted 
at the sides, the basal sulcation also rather deep, the anterior angles rounded, the surface entirely impunc- 
tate; scutellum black; elytra with a deep longitudinal depression within the shoulders and an equally 
deep transverse depression below the base, the latter distinctly raised, the punctuation rather fine and 
