354 
Psyche 
[June 
Bolbophites is placed in the subtribe Echiasteres because the pro- 
sternum is produced posteriorly and thence expanded laterally to the 
hypomera, a character which is usually concealed by the anterior 
coxae and consequently difficult to see. It is readily distinguished by 
the pronotum and elytra being provided with large, conspicuous 
knobby protrusions. Mimophites includes several species. Borgmeier 
(1949) reviewed the genus and provided a key to the species. Fauvel 
(1904) included two species in Bolbophites at the time he described 
the genus. No species have been added since. 
Blackwelder (1939) included Ophites { — Opithes) in a key to 
the genera of the subfamily Paederinae where he indicated its close 
relationship to Homaeotarsus by the presence of geniculate, anteriorly 
flexile antennae. Specimens of Mimophites and Bolbophites ap- 
parently were not available to Blackwelder as he did not include 
them in his key. 
In this work I describe a new species of Opithes from Mexico and 
for the first time present a key to the species of the genus. 
Nothing has been recorded concerning the habits of the various 
species nor of the habitats in which they are found. Unfortunately, 
Mr. Crandall cannot recall the circumstances under which he cap- 
tured the specimen described here from Mexico. 
1. 
2 . 
5 - 
6 . 
Key to the species of Opithes Blackwelder 
Head and pronotum ferrugineus. 2 
Head and pronotum black or piceus 3 
Surface of head anterior to eyes with two foveae, length 12mm.; 
Mexico. c ran dalli new species 
Surface of head anterior to eyes with three foveae, length 10 mm. ; 
Argentina. fauveli Lynch-Arribalzaga 
Head and pronotum opaque. 4 
Head and pronotum shining. 5 
Abdomen densely opaque; Brazil. stilicoides Sharp 
Abdomen semi-shining; Columbia. velitarsis Erichson 
Tibiae in part pale. 6 
Tibiae entirely black; Columbia. versatilis Erichson 
Elytra black; Columbia. raphidioides Erichson 
Elytra aeneus; Columbia bugnioni Fauvel 
Opithes crandalli new species 
Description of holotype. 
Color . — • Head, pronotum and first four and one-half abdominal 
