304 HETEROMERA. 
femora and tibie testaceous, the penultimate joint of the anterior and middle tarsi filiform, the inter- 
mediate tibie shorter than the tarsi of the same pair of legs, the posterior tibial spurs obscure testaceous, 
the inner spur very elongate. 
Length to end of the elytra 24, to tip of the pygidium 34, millim.; breadth 1 millim. 
Hab, Guatemana, Sinanja in Vera Paz (Champion). 
One example only. Much smaller than the smallest examples of MW. scutellaris or 
M. melena; the anterior and middle pairs of legs more slender and with their 
penultimate tarsal joint filiform; the intermediate tarsi a little longer than the tibize 
of the same pair of legs; the pygidium more slender, much more elongate, and almost 
pointed. The last joint of the maxillary palpi is comparatively stout, as stout as in 
M. melena; the antenne are very short and slender, the joints from the fifth serrate 
and a little widened. A mutilated example from Bugaba perhaps belongs to the 
same species. 
58. Mordella fenestrata. (Tab. XIII. figg. 18,3; 18a, maxillary palpus ) 
Elongate, narrowly cuneiform, black, the head narrowly (and abruptly) in front and the labrum testaceous, the 
prothorax with a small fulvous spot at the sides, the elytra each with an oblong subtriangular sordid 
yellow patch on the dise below the base and a much smaller and more obscure spot beyond the middle 
(the anterior spot deeply concave in front); the basal and apical margins of the prothorax narrowly 
cinereo-pubescent, the pubescence on the rest of the surface partaking of the ground-colour, sparse, and 
not altogether hiding the punctuation. Head exceedingly convex, the eyes pubescent ; palpi testaceous, 
the last joint of the maxillary pair ( ¢ ) piceous, subquadrangular, more than twice as broad as long, deeply 
excavate on its apical side, and abruptly truncate at the tip ; antennee with the basal four joints testaceous, 
the others in great part piceous, long and rather slender, joint 3 short and narrow, 4-11 moderately 
widened, longer than broad, 4~7 the widest and more distinctly serrate than 8-10, 11 fully one and a 
half times as long as 10; prothorax transverse, very convex, the base deeply bisinuate; elytra convex, 
narrower than the prothorax, and gradually narrowing from the base; pygidium very long and acuminate, 
moderately stout, nearly twice the length of the hypopygium ; beneath with a little cinereous pubescence 
at the sides of the ventral segments in front, for the rest blackish-pubescent ; legs moderately stout, black, 
the anterior femora and tibie and the middle femora (partly) testaceous, the tibial spurs flavous; the 
penultimate joint of the four anterior tarsi dilated and excavate; intermediate tibiee and tarsi equal in 
length; the inner spur of the posterior tibie very elongate. 
Length to end of the elytra 33, to tip of the pygidium 4, millim. ; breadth (prothorax) 1 millim. (<¢.) 
Hab. Panama, Taboga Island (Champion). — 
One example. Differs from all the preceding in the form of the last joint of the 
maxillary palpi in the male. This joint has its apical and lower sides straight and 
parallel to each other, and is abruptly truncate at the tip; it is articulated at its 
lower external angle to the third joint. The head is exceedingly convex. The pubes- 
cence is sparse, and does not hide the punctuation. MM. fenestrata has much the facies 
of the European genus Stenalia, Muls. It may have eventually to be separated from 
the genus Mordella; but as Mordellistena also contains species with somewhat similarly 
formed palpi in the male, it is not advisable to separate it. The hind tibie are without 
oblique ridges on their outer face, the subapical one excepted. 
