362 -  RHYNCHOPHORA. 
aes 
smaller than posterior. Antenna short, rufescent; club brown, twice as long as broad; eighth segment 
nearly as long as seventh, wider. 
Prothorax one-third broader at carina than long, strongly narrowed from carina to apex; very little rounded, 
disc punctate-rugate, markings forming more or less transverse bands; carina very strongly concave but 
remaining well separate from base, forming at sides a regularly curved hook, not being angulate. 
Scutellum white, longer than broad. Elytra short, almost square, a little wider at shoulders than 
prothorax, punctate-striate, depressed at suture; third and seventh interstices partly costate, a high 
conical tubercle near base in third interspace, followed by a minute one, seventh interspace with another, 
less high, tubercle before the subvertical apex. Legs grey, dotted with olive, especially the tibie, first 
tarsal segment shorter than fourth, 
Length 53 millim. 
Hab. Guaremata, San Gerénimo (Champion). 
Eight females. A ninth specimen (¢) from the same place is much smaller than 
the others, measuring only 34 millim. in length. 
XXIX. ORMISCUS. 
Ormiscus, Waterhouse, Ann. & Mag. Nat. Hist. xvi. p. 37 (1845) (type: variegatus). 
Hormiscus, Gemm. & Harold, Cat. Col. ix. p. 2738 (1872). 
Entomops, Gemm. & Harold, 1. c. (Jekel, MS.). 
Toxotropis, Leconte, Proc. Amer. Phil. Soc. xv. p. 397 (1876) (type: pusillus). 
Gonops, Leconte, |. c. p. 898 (1876) (type: fissungurs). 
Range: America; numerous species. 
¢ 9. Eyes sinuate; frons much narrower in ¢ than in @. Carina of pronotum subbasal, more or less 
deeply concave, either abruptly ending laterally at angle or flexed forward in front of or below the angle. 
Mid tibia of g armed at apex with a mucro, or a black ridge which bears a comb of short spines at the 
edge. Tooth of claw large. 
The species are all small and difficult to distinguish. It will be relatively easy to 
group them when the males of all the species are available for examination, as the 
armature of the mid tibia of this sex affords good distinguishing characters. So far, 
the males of only twelve of the twenty-one Central-American species are known to me; 
they can be grouped as follows :— 
A. Mid and hind tibie with mucro: costifrons, equalis, elegans, and nanus. 
B. Mid tibia with, hind tibia without, mucro: pardus, subtilis, and eneus. 
C. Mid tibia dilated at apex into a black ridge or lobe: lateralis, laticollis, calus, stratus, and 
pusillus. 
Key to the Central-American Species. 
a. Carina of prothorax not abruptly ending at sides but flexed forward, forming 
a short and usually very thin longitudinal carina situated in front of or 
beneath the lateral subbasal angle of the thorax . . . . . . . . . OB 
Carina abruptly ending at sides, either at the subbasal angle of the thorax or 
beneath this angle, in the latter case being continued downwards for a little 
distance. 2. 1. 1 2 ee ee ee ee ee f. 
b. First fore tarsal segment about twice as long as apically broad. Elytra 
strongly depressed at suture, interspaces 38 and 5 much broader than4 . . Species No. 1. 
First fore tarsal segment about thrice (or more) as long as apically broad. . . 
