MORDELLA. 275 
pair subtriangular, not very broad, its inner and apical sides about equal in length, and both much 
shorter than the outer side; antennz piceous with the four basal joints testaceous, short, joints 3 and 4 
slender, about equal in length, 4 a little stouter than 3, 5-11 widened, 5-10 gradually increasing in 
width and decreasing in length, 5 triangular, longer than broad, 6 about as broad as long, 7-10 very 
strongly transverse, strongly serrate, 11 subtriangular, narrower and a little longer than 10; elytra 
rather short; beneath densely yellowish-cinereous-pubescent ; pygidium short, blunt at the tip, about 
twice the length of the hypopygium ; legs, including the tibial spurs, black or piceous, the anterior and 
middle femora obscure testaceous. 
Length to end of the elytra 3-44, to tip of the pygidium 33-43, millim. ; breadth 13-2 millim. 
Hab. Mexico, Cordova (Sallé). 
Two examples, one in very good condition, the other denuded of pubescence. In 
the structure of the antenne this small species approaches J. clavicornis, M. quadri- 
signata, &c. The coloration of the elytra somewhat resembles that of VW. rufovittata, 
but I. triangulifer differs greatly from that insect in the form of the antenne and 
pygidium. In one specimen the elytra have the apex and a broad post-median fascia 
darker, but this is partly formed by the colour and arrangement of the pubescence. 
9. Mordella scutellaris. 
Mordella scutellaris, Fabr. Syst. Eleuth. 11. p. 123°; Lec. Proc. Acad. Phil. xiv. p. 46°; J. B. 
Smith, Trans. Am. Ent. Soc. x. pp. 80, 82, t. 1. figg. 34, 35°. 
Mordella irrorata, Lec. Proc. Acad. Phil. xiv. p. 46°. 
? Mordella stimulea, Makl. Act. Soc. Fenn. x. p. 569°. 
Hab. Norra America, Canada ?%, United States 2°, Southern and Western States 4.— 
Mexico, Northern Sonora (Morrison), Pinos Altos in Chihuahua (Luchan-Hepburn), 
Chihuahua city, Acapulco, Oaxaca (Hoge), Ciudad in Durango (forrer), Xucumanatlan, 
Chilpancingo, Atoyac (H. H. Snvith), Yolos, Playa Vicente, Cordova (Sallé); Guatz- 
mMALA (Sallé), Coban (Conradt), Calderas, Capetillo, San Gerénimo (Champion) ; 
NicaraGua, Chontales (Belt, Janson); Costa Rica, San Francisco (Rogers); PANama, 
Bugaba, Volcan de Chiriqui (Champion).—Souta America’, Brazil °. 
The typical form of this species is black without conspicuous markings. /. érrorata, 
Lec., has single intermixed cinereous hairs on the elytra, and a few of the Chihuahua 
and Durango specimens exhibit this peculiarity. The longer pygidium, the longer 
and non-clavate antennz, and the rounded median basal lobe of the thorax’ distinguish 
the species from IM. melena, Germ. The second joint of the maxillary palpi is 
unusually stout in both sexes. The outer lobe of the maxille is elongated, very much 
as in VV. aculeata, Linn. It is perhaps doubtful if the specimens from the above- 
quoted localities really all belong to one species; but I am unable to distinguish more 
than one amongst those from Central America. 
The identification with the Fabrician species is given on the authority of Leconte 2. 
2NN2 
