354 ss HETEROMERA. 
Anterior cox separated by a narrow prolongation of the prosternum. 
Vertex moderately raised ; basal lobe of the thorax not raised, triangular ;. 
elytra long and acuminate. . . .° . Species 9. 
Vertex feebly raised ; basal lobe of the Bios a fet very ead deat 
rounded behind ; elytra short, obliquely truncate at the tip, the imner 
eal anele rounded. ok ee a Species 10. 
1. Emenadia flavipennis. (Tab. XVI. figg. 5, 5a, 2 .) 
Macrosiagon flavipennis, Lec. New Sp. Col. p. 153 (¢)”. 
Rhipiphorus flavipennis, Horn, Trans. Amer. Ent. Soc. v. p. 122°. 
Macrosiagon abdominalis, Lec. New Sp. Col. p. 154 (¢ )*. 
Hab. Norrn America, New York!, Missouri1, Middle States®, Pennsylvania’, 
Illinois 2, Georgia 2, California Mexico, Villa Lerdo in Durango (Hége). 
One female specimen from Durango, agreeing very closely with Dr..Horn’s descrip- 
tion?. It is black, with the abdomen red and the elytra with a broad pale yellow fascia 
immediately below the base; the median lobe of the thorax is strongly raised just 
before the base, and the space between this and the tip is transversely hollowed; the 
second joint of the hind tarsi is simple, and slightly shorter than the third. 
VA 2. Emenadia bifoveata. (Tab. XVI. fig. 6, ¢.) 
Rhipiphorus bifoveatus, Horn, Trans. Am. Ent. Soc. v. p. 123 (¢)*. 
Hab. Nortu America, Illinois '\—Mextico, Oaxaca (Hoge); GuateMma.a (ex coll. Horn ; 
Sallé), Chimaltenango (Conradt); Nicaraeua (Sallé). 
A Guatemalan example of this insect has been kindly communicated by Dr. Horn. 
The species is apparently not uncommon in Mexico and Guatemala, whence we have 
received upwards of twenty specimens. The elytra are described! as “brownish, 
gradually becoming black at the base, a small arcuate space one-fourth from the 
humerus pale luteous:” two-thirds of the specimens received have the elytra entirely 
black, the others having them coloured as described by Dr. Horn. The thorax has a 
large, very deep, triangular fovea on either side of the disc before the base, the space 
between the foveee appearing to be longitudinally raised, this elevation extending down 
the median lobe to the tip, which is transversely notched. The second joint of the 
hind tarsi is shorter than the third, and broadly dilated. The anterior coxe are 
- separated for half their length by a prolongation of the prosternum. Our specimens 
vary from 74 to 134 millim. in length. . bifoveata was described from a single male 
example. 
3. Emenadia excavata, (Tab. XVI. figg. 7,9; 8,2, var.) 
Elongate, rather narrow, moderately shining; the head and prothorax black, pitchy-red, or rufous; the elytra 
testaceous or flavo-testaceous with the base, the sutural and lateral margins, and a sublateral stripe— 
