PHLC@OBORUS. 151 
18. Prothorax with no transverse elevation; its punctuation simple 
towards the base . . 2... 1. ww ew ee ee ee 
Prothorax with a transverse subelevated line, its punctuation 
submuricate towards the base . . . . . . . . . . © «©punctato-rugosus, Chap. 
14, Elytral elevations tubercular, papilliform . . . . . . . . .  [mamillatus, Chap.] 
Elytral elevations consisting of transverse ruge . . . . . . . [breviusculus, Chap.] 
1. Phleoborus rudis. (Tab. VI. figg. 13; 13a, front; 134, prothorax with 
fovea.) 
Phleoborus rudis, Er. Wiegm. Archiv, 1836, 1, p. 55’; Chap. Syn. Scol. p. 12 (Mém. Soc. Liége, 
1873, p. 220) *. : 
Black or piceous, subcylindrical. Eyes contiguous above, infraocular space subtriangular, subimpressed and 
rugosely punctured, with a median carina, shortly pubescent ; vertex punctured. Prothorax strongly 
transverse, subrugose, with strong variolose punctures, confluent at sides, but without trace of asperate 
projections, median line variable, subelevated, smooth, a smooth patch, sometimes impressed, on each 
side of it, interspaces shining, not sculptured. Elytra two and a half times as long as the prothorax, 
subnitid, rather strongly rounded at base, parallel-sided ; striee rather shallow, their punctures large but 
indistinct ; interstices from base to extreme apex with close raised transverse ruge uniseriate behind the 
middle, their interspaces short, irregular, impressed. Prothoracie foveee large and deep. Legs deep 
piceous, the tibiz sulcate internally, less strongly than in Phlwotrupes. 
Length 11-13 millim. 
Hab. British Honpuras, River Sarstoon (Blancaneaux); Nicaragua, Chontales 
(Belt, Janson).—Gutana, Cayenne?; Braz} 2, 
Three examples only of this well-marked species, one of the most common in 
collections, in which it frequently does duty for Phlwotrupes, Er., have reached us from 
Central America. Mr. Champion, by whom the large majority of the Scolytide have 
been collected, did not meet with it in Guatemala or Panama. The twenty specimens 
I have examined all possess the propleural fovee; should this character be found to 
occur in one sex only of this species, it is likely that P. elongatus, Chap., will prove to 
be the other sex. Of this latter, examples are not available at the time of writing. 
2. Phleoborus belti, sp. n. 
Oblongo-ovalis, subopacus, nigro-piceus ; oculis contiguis ; prothorace transverso, pleuris foveolatis, supra ad 
latera et versus apicem muricato, posterius punctis rugosis confluentibus irregulariter notato; elytris 
punctato-striatis, interstitiis rugis transversis sat dense asperatis, 2° ad apicem subimpresso nec rugoso. 
Long. 8 millim. 
Oblong-oval, deep piceous. Front below the approximate eyes rugose and indistinctly carinate ; antennal club 
short-oval, slightly flattened. Prothorax transverse, widest before base, apex obtuse, forming a rounded 
angle with the sides ; apical half and sides muricate, basal half with confluent punctures, separated by 
irregular rough elevations, median line subelevated, lateral impressions not distinct. Scutellum rounded. 
Elytra wider than the prothorax at base and more than twice as long, their basal margins rounded, the 
shoulders not prominent, sides subparallel; with distinctly punctured striz, interstices with transverse 
rug, not as close as in P. rudis, uniseriate behind the middle, except on the 3rd and 5th interstices, on 
them not before the declivity, apex of the 2nd subimpressed, without elevations, finely reticulate. Tibie 
more slender and less deeply sulcate than in P. rudis. 
