NOTOXUS. yA 
gives the length of V. monodon as 2'5-5 millim. ; our largest example does not measure 
more than 4 millim. with the head extended. I have examined a typical specimen 
from the United States, communicated by Dr. Horn. 
14. Notoxus mexicanus. (Tab. IX. figg. 22, 22a.) 
Elongate, subparallel, reddish-testaceous, somewhat thickly clothed with coarse, decumbent pubescence and 
rather long erect hairs; the elytra testaceous, with a large spot on either side of the suture just below 
the base, a curved fascia commencing at the sides beyond the middle and extending upwards along the 
~ suture (sometimes nearly reaching the postbasal spots, in one example interrupted and less extended), 
and an anteapical patch extending upwards along the suture, piceous. Head thickly and finely punctured, 
dull, the front flat; prothorax transverse, very closely and finely punctured, slightly shining—the horn 
long and parallel, narrow in the male, a little broader in the female, concave within, coarsely or moderately 
coarsely serrate at the sides, and oval at the tip, the crest considerably raised, narrower than the horn, 
and sharply margined to the tip, the margins feebly crenulate ; elytra long and subparallel, rather shining, 
very closely and somewhat coarsely punctured, the punctuation finer towards the apex, the usual oblique 
depression below the shoulders very faintly impressed, the humeri distinct, the apices conjointly rounded 
and somewhat obtuse; beneath and the legs and antenne testaceous or fusco-testaceous; fifth ventral 
segment unimpressed in the male. 
Length 32-4 millim. 
Hab. Muxico, Presidio de Mazatlan (Forrer), Acapulco and Iguala in Guerrero (Hége), 
Guanajuato (Sallé). 
Nine specimens, agreeing well with each other. More elongate and larger than 
N. monodon; the thoracic horn longer, narrower, and parallel, the thorax itself much 
more closely punctured. The thoracic horn resembles that of VV. anchora, Hentz, in 
shape, but has a more prominent crest. The pubescence is shorter and finer than in 
N. calcaratus. This is one of several Central-American species allied to MW. apicalis, 
Lec., WV. monodon (Fabr.), and NV. calcaratus, Horn. Our figure is taken from the 
Guanajuato example; this has the median fascia of the elytra interrupted. 
15. Notoxus cristatus. (Tab. IX. figg. 23, 23 a, 3.) 
Elongate, subparallel, reddish-testaceous, thickly clothed with long coarse decumbent pubescence and long erect 
hairs; the prothorax with a black spot on either side of the crest; the elytra testaceous or reddish- 
testaceous, with a spot on either side of the suture just below the base, a similar spot a little lower 
down below the shoulder (obsolete in one example), a very strongly angulated median fascia, and a 
narrower anteapical fascia (extending upwards along the suture and also with two branches extending 
upwards at the sides), black. Head densely pubescent and with numerous long erect hairs at the sides 
and in front, sparsely punctured, dull, the front slightly concave; prothorax broader than long, finely and 
rather closely punctured, dull—the horn broad, a little narrowed behind, and margined and serrate at the 
sides, the.crest abruptly elevated, sharply margined to the tip, and with a distinct carina down the middle, 
the margins crenulate; elytra long and subparallel, rather shining, closely and finely punctured, the usual 
oblique depression below the shoulders rather shallow, the humeri distinct, the apices a little produced, 
the sutural angles rather sharp in the male, more obtuse in the female; beneath fusco-testaceous ; legs 
and antenne testaceous; fifth ventral segment unimpressed in the male. 
Length 37-47 millim. (¢ Q.) 
Hab. Mexico, Guanajuato (Sallé), Cuernavaca (Hége). 
Three examples only. The male has the sutural angles of the elytra rather sharper, 
