HELOPS. | | 315 
with rows of more or less coarse, distantly placed, longitudinal, irregular impressions, the impressions 
becoming coarser and here and there confluent outwardly and more widely separate towards the apex, the 
interstices almost flat on the disc, a little convex and irregularly wrinkled and here and there transversely 
confluent outwardly, shallowly but very distinctly punctured, the seventh more or less distinctly (rarely 
obsoletely) costate from the shoulder nearly to the apex and there confluent with the slightly raised third, 
the fifth also slightly costate ; beneath dark reddish-brown, a little shining, pubescent, somewhat closely and 
rather coarsely punctured and wrinkled, the flanks of the prothorax rather coarsely confluently punctured ; 
prosternum smooth, declivous; legs and antennz reddish-brown or piceous, the basal joint of the anterior 
tarsi broader in the male. 
Length 74-134 millim.; breadth 3-5 millim. (d 2.) 
Hab. Guaremata, Totonicapam 8500 to 10,500 feet (Champion), Volcan de Acate- 
nango 10,000 to 12,000 feet (Sarg). 
This species will readily be known from H. rugiceps by the thorax being wider 
towards the apex, and with the disc raised in the middle in front and the anterior 
angles more prominent ; the elytra flatter on the disc, and with the seventh interstice 
(and the third and fifth also posteriorly) costate, &c. 
I met with this insect in numbers beneath loose pine-bark on the summit of the 
cordillera above Totonicapam; Mr. Sarg’s specimens were obtained at a similar 
lofty elevation on the Volcan de Acatenango, one of the peaks of the Volcan de 
Fuego. 
5. Helops rugiceps. (Tab. XIII. fig. 24, 3.) 
Elongate ovate, rather convex, brownish-piceous, the sides of the prothorax anteriorly and the base and suture 
of the elytra suffused with reddish-brown, slightly shining. Head coarsely, equally, and confluently 
punctured, very broadly and shallowly transversely impressed in front, the intraocular space slightly 
flattened, the epistoma shallowly arcuate emarginate in front; antenne (male) long, comparatively 
stout, joints 9 and 10 subtriangular, the apical joint longer than the tenth, ferruginous; prothorax 
narrow, longer than broad, feebly convex, rather strongly margined, widest before the middle, the sides 
slightly narrowed and sinuous behind and very little narrowed in front, the apex feebly bisinuate (almost 
straight if viewed from above), the anterior angles rather broadly rounded and a little prominent, the 
base subtruncate, the basal fovex shallow, the hind angles acute, the surface closely, somewhat coarsely, 
and equally punctured, a narrow longitudinal space on the disc impunctate ; elytra long, narrow, slightly 
flattened on the disc, the humeri a little produced in front, with rows of rounded or elongate rather coarse 
impressions, the impressions here and there confluent though scarcely becoming coarser outwardly and 
finer and shallower at the apex, the interstices feebly convex outwardly and very distinctly and compara- 
tively coarsely punctured; legs long, brownish-ferruginous ; tarsi stout, the three basal joints of the 
anterior pair about equal in width in the male; beneath reddish-brown, rather shining, closely, finely, 
and subequally punctured, the flanks of the prothorax more coarsely and confluently so; prosternum 
declivous, the apex with a small raised point. 
Length 103 millim. ; breadth 33 millim. (¢-) 
Hab. Guatemana, Capetillo (Champion). 
One example. A long and narrow insect somewhat resembling the Californian 
H. angustus, Lec. (a winged species placed by Allard in his subgenus Omaleis) ; it 
cannot, however, be satisfactorily compared therewith. 
288 2 
