-TETRAONYX. 389 
Haag®. This author has separated the Mexican and Central-American forms from 
T. sexguttatus under the collective name of 7. proteus; but in this [am unable to 
-followhim. The form described by Olivier and Klug has three rounded spots on each 
—elytron, and some of our Mexican examples (one of which has been determined by Haag 
himself as 7. sexguttatus) agree exactly in this respect with Brazilian ones. 
In addition to the five varieties named by Haag, I have to notice two others :-— 
Var. a. humboldti, Haag (=ochraceoguttatus, Dugés).—Size large; the elytra black, with three large orange 
spots (2, 1), the posterior one broad.—Mexico, Surinam, Brazil. 
Var. 3. biguttatus, Haag.—Smaller; the elytra with the two anterior spots partly or entirely connected, and 
the posterior one large and more or less excised, these markings forming two angulated fascie. (Figg. 1, 2.) 
——Mexico, Honduras, Nicaragua, Chiriqui. 
Var. y. sanguinolentus, Haag. Large; the elytra black, with two orange or rufo-fulvous fasciee extending com- 
pletely across, the anterior one more or less angulated, the posterior one broad. (Fig. 3.)—-Mexico. 
Var. 6. Large; the elytra black, with two narrow rufo-fulvous fascie, and the sides, base, and apex narrowly 
margined with the same colour. (Fig. 4.)—Guatemala. 
Var. e. sellatus, Haag.—Large ; the elytra orange, with the base and apex black. (Fig. 5.)--Mexico.: 
Var. Z. Large; the elytra red, with a scutellar patch, two spots placed transversely on the disc beyond the 
middle, a spot at the inner apical angle, and the apex itself, narrowly, black. (Fig. 6.)-—-Guatemala. 
Var. n. centromaculatus, Haag. Large; the elytra orange, with a rounded spot below the scutellum black.— 
Loc.? 
Several of these varieties occur together at the same places; and though the typical 
form is common to Mexico and Tropical South America, I have not seen examples of 
it from intermediate localities. South-American specimens seem to vary very little. 
3. Tetraonyx octomaculatus. 
Tetraonyx octomaculatus, Latr. in Humboldt & Bonpland’s Obs, Zool. i. p. 160, t. 16. figg.7, 7a’; 
Casteln. Hist. Nat. Ins. Col. ii. p. 276°; Haag, Stett. ent. Zeit. 1879, p. 311. 
Hab. 1 Mexico ?, Jalapa *}. 
This species, the type of the genus, has not been identified by modern writers. It 
is black, each elytron with four blood-red spots—two at the base (one median, in the 
form of a narrow band, the other humeral, triangular) and two at the middle (placed 
transversely). Latreille states that the insect was found upon the Liquidambar '. 
T. octomaculatus is an ally of T. sexguttatus (Oliv.); but it can scarcely be a variety 
of it. 
* The locality mentioned by Latreille is “ Xalapa, New Spain”; Castelnau gives Mexico, but this requires 
confirmation, there being several places of this name in America. 
