20 RHYNCHOPHORA. 
plicate in a line with the inner edge of each posterior coxa, the two ridges forming the 
outer limits of a f-shaped groove; the fifth segment is shallowly arcuate-emarginate 
in the male. In the allied P. obesus, Boh., the sharp tooth on the inner edge of the 
posterior tibiz is wanting. 
PELTOPHORUS. 
Peltophorus *, Schénherr, Gen. Cure. viii. 2, p. 451 (1845); Lacordaire, Gen. Col. vu. p. 151; 
Heller, Abhandl. Mus. Dresden, no. 11, pp. 8, 18 (1895). 
Zygops, Leconte and Horn, Class. Col. N. Am. 2nd edit. p. 489 (1883); Casey, Ann. N. York 
Acad. Sci. ix. p. 667 (1897). 
Apatorhynchus, Desbrochers, Aun. Soc. Ent. Belg. xxxv. pp. 37, 40 (1891). 
A genus peculiar to Mexico, Texas, and Arizona. In addition to the characters 
given by Lacordaire to separate it from Zygops (the relatively longer basal joint of the 
funiculus, the excavate mesosternum, &c.), it may be noted that the rostral canal is 
much deeper, the anterior coxe are more widely separated, and the intermediate and 
posterior tibiz are strongly ciliate on their outer edge from about the middle to the 
apex. The males have a broad, oval or pyriform, depression extending down the middle 
of the ventral surface. P. polymitus, like Cratosomus punctulatus, is a very variable 
insect. In both species the alternate elytral interstices 3, 5, 7, and 9 are raised and 
seriato-granulate. 
1. Peltophorus polymitus. (Tab. II. figg. 8; 8a, hind leg; 9, 9 a, var.) 
Peltophorus polymitus, Boh. in Schénh. Gen, Cure. viii. 2, p. 452°. 
Peltophorus leucomelas, Lacord, Gen. Col. vii. p. 152, nota (sine descr.) *. 
Zygops seminiveus, Lec. Trans. Ent. Soc. xii. p. 81 (1885)°; Lec. and Horn, Class. Col. N. Am. 
2nd edit. p. 489"; Casey, Ann. N. York Acad. Sci. vi. pp. 459, 460°. 
Zygops suffusus, Casey, loc. cit.°. 
Hab. NortH America, Pinal Mts. (Wickham), Arizona* 4, Texas °—Muexico27 (ex 
coll. Flohr), Northern Sonora (Morrison), Ventanas in Durango, Esperanza (Hoge), 
Puebla (Sallé), Jalapa (errari-Perez), Tehuantepec (coll. Fry), Villa Alta in Oaxaca }. 
Var. leopardinus. 
&. Lygops (Apatorhynchus) leopardinus, Desbr. Aun. Soc. Ent. Belg. xxxv. p. 40”. 
The prothorax with four or five spots on the disc, which are often more or less confluent, two on each side, and 
one or two others on the flanks, black. (Fig. 9.) 
Hab. Muxico’, Matamoros Izucar, Cuernavaca, Huitzilac (Hége), Guerrero (Baron), 
Juquila (Sallé). 
The two forms of this insect are about equally common in Mexico, but only one of 
them, the true P. polymitus, extends northward into the Southern United States. The 
white, yellowish, or fulvous markings are very variable in extent (often asymmetric on 
the elytra, or condensed on the disc into short, oblique, or transverse streaks), both on 
* The name Peliophora was used by Burmeister in 1835 for a genus of Hemiptera, 
