264 ’ HETEROMERA. 
Tomoxia hilaris, J. B. Smith, Trans. Am. Ent. Soc. x. pp. 79, 80, t. 1. figg. 80, 382+. 
Glipa hieroglyphica, Schwarz, Proc. Am. Phil. Soc. xvi. p. 372°. 
Hab. Nortu America, Indiana!, Middle and Western States? 4, Florida ®>.—Mexico, 
Playa Vicente (Sal/é); Nicaraeua, Chontales (Belt). 
Three specimens of this species have been received from Central America. They 
agree well with a female example from the United States kindly forwarded by Dr. Horn. 
The elytral rmarkings are variable, but the general pattern is constant; the head is 
angularly extended beyond the eyes; the anterior femora are more or less testaceous 
towards the base. ‘The Nicaraguan specimen is of the male sex: it has the anterior 
tibie bowed inwards from the middle; the anterior femora and the basal portion of the 
anterior tibiz fringed with long hairs within; and the fifth ventral segment broadly 
and deeply excavate along the centre from the apex nearly to the base. Schwarz’s 
description of G. hieroglyphica® is evidently based upon male examples, as he mentions 
the excavate fifth ventral segment ; he gives as a possible male-character “ penultimate 
joint of the maxillary palpi fringed internally with dense whitish pubescence,” but this 
is not evident in the Nicaraguan male. 
“MORDELLA. 
Mordella, Linneus, Syst. Nat. 10th edit. 1. p. 420 (1758); Lacordaire, Gen. Col. v. p. 609. 
Sphalera, Leconte, Col. of Kansas & Eastern New Mexico, p. 17 (1859). 
This genus contains an immense number of species from all parts of the world, and 
it is, no doubt, more numerously represented in tropical than in temperate regions. 
One only has hitherto been recorded from within our limits, whence fifty-eight are now 
enumerated ; nineteen only are known from America north of Mexico. Comparatively 
few species of Mordelia have been described as yet from Tropical South America (and 
those chiefly Brazilian); but some hundreds must exist there. As in Tomozia, two 
groups of species are indicated—one with the penultimate joint of the four anterior 
tarsi dilated and excavate (as in the type of the genus), and the other with this joint 
simple. Both groups include species with the antenne clavate and species with the 
antenne only moderately widened or slender. Upon a member of the clavate series 
(with dilated penultimate tarsal joints) Leconte founded (and subsequently abandoned) 
his genus Sphalera.. The form of the fourth antennal joint is an important specific 
character in this genus, but, like that of the tarsi, it seems to have escaped the 
notice of authors. The antenne in most of the species differ very little sexually; in 
M. chevrolati the apical joint is elongated in both sexes, and is longer in the male than 
in the female. The last joint of the maxillary palpi varies greatly in shape according 
to the species, and in a few cases differs sexually: in the male of UZ. biformis it is 
securiform, and very much broader than in the female; in the male of IZ. fenestrata 
