282 HETEROMERA. 
apical side, each much shorter than the outer side; antenne obscure testaceous, piceous towards the tip, 
joints 3 and 4 short, subequal, 5-11 moderately widened, 5-10 serrate, decreasing in length, 5 rather 
longer than broad, 6-10 about equal in width, 9 and 10 strongly transverse, 11 short ovate, longer but a 
little narrower than 10; scutellum triangular; elytra comparatively short ; beneath cinereo-pubescent, 
the ventral segments at the sides behind clothed with dark brown pubescence; pygidium short and 
rather stout, blunt at the tip, about twice the length of the hypopygium ; legs stout, black, the anterior 
and intermediate femora and tibie testaceous or fusco-testaceous, the tibial spurs piceous. 
Length to end of the elytra 34, to tip of the pygidium 4, millim.; breadth 13 millim. 
Hab. Mexico, Jalapa (Hoge); GuatemMata, near the city, Capetillo (Champion). 
Three examples only of this peculiar little species have been obtained. ‘The arrange- 
ment of the elytral pubescence is different from that of all the other Central-American 
Mordeile, each elytron having four narrow, parallel, slightly oblique, lines of light 
pubescence, and these lines separated by narrow stripes of blackish pubescence; the 
Guatemalan examples have a reddish spot below the humerus. I. octolineata has 
much the facies of a small Tomoaia, but the scutellum is triangular; the N. American 
T. lineella, Lec., seems to have somewhat similar markings. 
22. Mordella subdola. (Tab. XII. fig. 9.) 
Moderately elongate, black ; the head, the prothorax on all sides indeterminately (and in one specimen the 
sides of the disc also), the scutellum, the elytra with the suture and base very narrowly and a very 
narrow oblique stripe extending from the shoulder to the middle, and the basal half of the pygidium, 
cinereo-pubescent, the rest of the pubescence of the upper surface black. Palpi piceous, the last joint of 
the maxillary pair stout, subcultriform, its outer and apical sides about twice the length of the inner 
side; antenne piceous, the basal four joints paler, joints 3 and 4 slender, subequal, 5-11 moderately 
widened, longer than broad, differing very little in length, 5-10 subserrate; elytra moderately long, 
flattened on the disc ; beneath with the metasternum, the sides of the hind coxe in front, and the base 
of each ventral segment cinereo-pubescent, for the rest blackish-pubescent ; pygidium rather short, not 
very stout, blunt at the tip, twice the length of the hypopygium ; legs black, the tibial spurs obscure 
testaceous. 
Length to end of the elytra 4, to tip of the pygidium 5, millim. ; breadth 13 millim. 
Hab. Mexico, Juquila and Yolotepec, both in Oaxaca (Sal/é). 
One worn example only from each locality. Easily separable from most of the 
Mordelle here described by the suture being narrowly cinereo-pubescent from the base 
to the apex ; on each elytron there is also a very narrow oblique slightly interrupted line 
of cinereous pubescence extending from the shoulder to. the middle. The antenne are 
longer and less strongly serrate than in W/. astuta, from which it also differs in the form 
of the last joint of the maxillary palpi. | 
Perhaps a variety of the North-American MW. obliqua, Lec. (Proc. Am. Phil. Soc. xvii. 
p. 428, fig.), from the figure of which it only seems to differ in having a shorter and 
more oblique discoidal stripe on the elytra. MV. obliqua is treated by J. B. Smith in his 
‘ Monograph’ as a variety of M/. lunulata, Helm. ; the type of MW. obliqua is also figured 
by him (Trans. Am. Ent. Soc. x. t. 2. fig. 1). 
