In some species, even the holes of the pronotal disc have slightly raised lateral edge. The frons of the male is not so finely or densely punctured, with fewer, much shorter hairs, with the median carina much more distinct on the upper prones and reduced just above the epistoma.
NEW SPECIES OF BARK BEETLES — BLACKMAN 187 Elytra wider than pronotum, 1.58 times as long as wide, 1.57 times
NEW SPECIES BASKEWERS — BLACKMAN 187Elytra wider than pronotum, 1.58 times as long as wide, 1.57 times. NEW SPECIES OF BASKEWERS — BLACKMAN 189 margin poorly toothed; dorsal contour evenly curved from base to.
NEW SPECIES OF BARK BEETLES — BLACKMAN 189 margin weakly serrate; dorsal contour evenly arcuate from base to
Elytra barely wider than pronotum, 1.54 times longer than wide, 1.47 times longer than pronotum; sides on anterior two-thirds subparallel, then gradually arcuately narrowed, posteriorly moderately rounded; shiny surface; striations nearly regular, except near base, the former faint, the latter not impressed at all; interspaces. flat, markedly wrinkled, with a few holes, similar in size to those in striae, few hairs, short and inconspicuous except behind. Antenna (Fig. 16) with rod broadly obovate, 1.16 times as long as wide, 1.50 times as long as funicle, first suture moderately separated, incomplete, not strongly septate; second and third suture rather indistinctly marked with setal rows.
NEW SPECIES OF BARK BEETLES — BLACKMAN 191 rounded; sides nearly regularly arcuate from base to the moderate
NEW SPECIES OF BARK BEETLES – BLACKMAN 191round; The parties vary almost regularly from grassroots to moderate. Male. - Similar to female in habit; with frown strongly convex above, transversely depressed above epistoma; surface glossy, finely reticulated; sparse, very fine and shallowly pierced, with some very fine, very short hairs.
NEW SPECIES OF BARK BEETLES — BLACKMAN 193 broadly ovate, 1.1 times as long as wide, nearly twice as long as funicle;
Antenna (Fig. 17) with bar very broadly oval, almost as wide as long, 1.5 times as long as funicular; first suture moderately separated, septum rather weak; second and third suture marked onlj^ by arcuate setal rows. barely rounded, posterior angles slightly rounded; sides straight and subparallel on posterior half, arcuately tapering to tapering, broadly rounded anteriorly; anterior margin finely but distinctly toothed; dorsal contour not uniformly arched, its apex barely raised, with surface posteriorly broadly, very shallowly impressed; anterior part with moderately large ridges not arranged in regular concentric rows; posterior area subtransparent, dense, finely granular-punctate in transverse impression, posteriorly finely and rather coarsely punctate, median line indistinct. Elytra equal to width of pronotum, 1.65 times longer than wide, 1.5 times longer than pronotum; sides nearly straight and subparallel on anterior two-thirds, moderately rounded posteriorly; surface slightly reticulated, shiny; punctures of moderate size, in regular rows, only the first impressed; interspace scarcely wrinkled, not punctate on disc except in first interspace near declination; pages with regular strial. rows and hairless except near the ventral margin.
NEW SPECIES OF BARK BEETLES — BLACKMAN 195
The forehead is concave between the eyes, probably with a concavity which is finely, closely punctate, but the surface usually completely hidden by dense, long, shining yellow hairs extending downward from above and laterally almost to the epistomal margin, the peripheral margin indented and very fine and closely punctuated. Pronotum 1.14 times as long as wide, widest posteriorly; posterior margin emarginate, slightly separated, sides very slightly arched, subparallel on posterior half, markedly narrowed anteriorly at middle, moderately narrowly rounded anteriorly, with four to six teeth, middle pair slightly longer; disc contour, seen from the side, almost uniformly convex, the apex is therefore barely raised and the posterior transverse impression is almost absent; anterior part with slightly irregular, concentrated ridges. Elytra slightly wider than pronotum and 1.63 times as long, about 1.72 times as long as wide, sides nearly straight and subparallel on anterior two-thirds, broadly rounded posteriorly; surface piquant black, bright shining; strial punctures in almost regular rows, le.
NEW SPECIES OF BARK BEETLES BLACKMAN 197 interspace not below level of third; declivity with fine, short hairs;
Antenna (Fig. 22) rod-ovate, 1.25 times as long as wide, 1.60 times as long as funicle; the first suture is moderately separated, incompletely, moderately strongly septate, the second and third sutures are marked only by incomplete rows of bristles. Elytra barely wider than pronotum, 1.64 times longer than wide, 1.46 times longer than pronotum; widest near middle, with sides very weakly arched, posteriorly moderately narrowly rounded; surface rather poorly shiny, finely reticulated; the line rows are almost regular, only the first striae are impressed and these very slightly, the dots fine, not very deep; interspaces straight, not punctate on disc and sides, glabrous. Inclination evenly arched, sutures scarcely more raised than on disc, first striae very weakly impressed; with only tiny hairs and these mostly from stral punctures, without granules.
NEW SPECIES OF BARK BEETLES — BLACKMAN 199
Antenna (fig. 28) with club 1.24 times as long, 1.37 times as long; sutures all arcuate, first and second laterally cut, none of the sutures separated. Tronas very wide between eyes, frontal rectangle about 0.4 as long as wide; convex, slightly flattened below, surface shiny, fine, moderately sparse, moderately distinct in epis-. Elytra slightly wider than pronotum, about 1.93 times longer than wide, sides subparallel in anterior two-thirds, then strongly, arcu-.
NEW SPECIES OF BARK BEETLES — BLACKMAN 203
Elytra distinctly wider than pronotum, 1.34 times as long as wide, 1.30 times as long as pronotum; sides subparallel to anterior half, then gradually arcuately narrowed, very broadly rounded at apex;. Antenna (fig. 33) with club 1.20 times as long as wide, 1.55 times as long as line, widest through third segment, with septa of first two sutures incomplete, almost transverse. Elytra as wide as pronotum, 1.49 times as long as wide, 1.48 times as long as pronotum; sides subparallel on anterior two-thirds, mod-.
NEW SPECIES OF BARK BEETLES — BLACKMAN 207
Elytra slightly wider than pronotum, 1.55 times as long as wide, 1.53 times as long as pronotum; sides subparallel on anterior two-thirds, moderately rounded behind; surface brightly sparkling, finely indistinctly reticulated; holes small, moderately deep, in almost completely regular rows, only the first striae weakly impressed; spaces.
NEW SPECIES OF BARK BEETLES — BLACKMAN 209 The female is unknown
Holotype, allotype and 6 paratypes collected from Alnus sp., at Jalapa, Veracruz, Mexico, by Donald DeLeon, 9 February 1936. Frons convex, slightly flattened on a semicircular area, outlined with a depressed margin, surface declinate, reticulate, somewhat rugose, with fine, rather sparse punctures and very fine, sparse hairs of moderate length; median carina usually poorly developed. Pronotum nearly 1.2 times as long as wide, widest slightly behind middle, posterior angles strongly rounded, sides distinctly curved from base to lateral constriction, broadly rounded anteriorly; leading edge with rather strong, sharp saws; anterior region with irregular concentric rows of rather sharp cusps; Crest rather high, a little in front of the middle, with a distinct transverse impression behind; posterior area opaque to faintly shining, with deep, moderately sparse punctures of moderate size, the interstices reticulate;.
NEW SPECIES OF BARK BEETLES — BLACKMAN 211
Elytra slightly wider than pronotum and about 1.53 times as long, 1.65 times as long as wide; sides nearly straight and subparallel on anterior two-thirds, narrowly rounded posteriorly; surface moderately shiny, reticulate, striated punctures moderately small, inner regular rows, only first striae impressed; interspaces scarcely rugiilose, abutting the disk except in poor life, sides with some interstitial punctures bearing short, fine hairs. Male. - Similar to her in size and proportions; frons convex, strongly, coarsely punctured, with a rather faint median carina, which may be almost obliterated by the punctures; mandible without the conspicuous hair ridge as in female, but with a very small tuft of hair, near ventral margin
NEW SPECIES OF BARK BEETLES — BLACKMAN 213
Pronotum approx. 1.03 times longitudinally, broad-stated base, posterior margin weakly curved, angles scarcely rounded; sides weakly, arcuately converging from base to constriction, moderately rounded anteriorly, the anterior margin with eight rather shallow ridges (lower than in caelator); anterior area with moderate asperities, in irregular, concentric lines; rather high, with distinct, broad, transverse impression behind; posterior area faintly shining to opaque, surface reticulate, with moderately coarse, deep punctures; median line rather broad, smooth, unpunctate; vestitureoffine, short, conspicuous disc of hair, those on the sides slightly larger. Elytra slightly wider than pronotum and 1.66 times as long, 1.64 times as long in width; sides straight and subparallel on anterior two-thirds, moderately rounded posteriorly (not as wide as in caelator).
NEW SPECIES OF BARK BEETLES — BLACKMAN 215
210 PROCEDURES OF THE NATIONAL MUSEUM vol.m. in women and with short, fine and inconspicuous hair; slope with almost aged grains as in women. Elytra scarcely wider than pronotum and about 1.57 times as long, 1.72 times as long as wide, the sides subparallel on the anterior four-fifths, then much narrowed to the slightly raised suture; surface brightly shiny, punctures rather coarse and close, very deo), confused, with little indication of strial rows on the disc, all punctures with fine, rather short hairs; sides with irregular strial rows, with vesture as on disc. The slope is rather sloping, broad, rather shallowly undulating on each side of the raised suture, lateral convexity not greatly increased, slightly lower than suture, both suture and convexity with a few small, aged grains; full slope including-.
NEW SPECIES OF BARK BEETLES — BLACKMAN 217
218 PROCEDURE OF THE NATIONAL JVIUfiEUM vol.as outdated; lateral convexities higher than suture, very weakly granulated at third interspace; sutures and lateral elevations with erect hairs of medium length. Male. Slightly smaller and fatter than females (1.74 mm long, .. about 2.88 times as long as wide); frown convex, transversely depressed below, transversely serrated above; elytra less acuminate behind, holes slightly coarser, strial rows less regular; with grains of lateral convexities of the slope slightly coarser and hairy. The species is most closely related to Pityophthorus cacimiinafus Blandford among the known Central American forms, but differs mainly in the different structure of the elytral slope.
NEW SPECIES OF BARK BEETLES
BLACK:MAX 219 Elytra slightly wider than pronotum, about 1.72 times as long as
Decline very deep, rather broadly sulcate, with sulcus subpaque, suture moderately broad, strongly raised, stronger posteriorly, distinctly granular and with fairly long setae; dots of first and second stria obsolete. Male.—Slightly stouter (about 3.01 times longer than wide) and more coarsely and coarsely punctured; forehead transversely impressed below, with a raised, arched, transverse carina above, more coarsely and coarsely punctured than in females, with smaller inconspicuous hairs; elytral disc noticeably more coarsely punctate, with narrower interspaces and less regular striated rows; slope with furrows. The foreheads are flattened in more than a semicircle, extending almost from eye to eye, with a depression of the marginal margin; very finely and densely punctured, with very fine hairs of moderate length covering most of the surface, and with a margin of coarser, longer, coiled hairs on the sides and above.
NEW SPECIES OF BARK BEETLES — BLACKMAN 221 nearly straight and subparallel on posterior half, then slightly nar-
NEW SPECIES OF SUB-WORMS — BLACKMAN 221almost straight and subparallel on posterior half, then slightly nar-. Pronotum about 1.17 times longer than wide, widest near base, posterior margin weakly separated, posterior angles rounded, sides nearly straight and subparallel, on posterior two-thirds, slightly narrowed anteriorly at middle, broadly rounded anteriorly, anterior margin armed with many small, sharp teeth; apex moderate, weakly impressed posteriorly; front with ridges merging into 4 perfectly regular, concentric cords; posterior regions subtransparent, densely reticulate, with very fine, very shallow, sparse, rather obscure punctures, midline not raised, moderately narrow; disc apparently bare. Femotles.—Reddish brown; holotype 1.62 mm long, 3.23 times as wide, with pointed elytra and pronotal ridges fused into regular concentric ridges.
NEW SPECIES OF BARK BEETLES — BLACKMAN 223
Elytraaswideaspronotum and 1.29 times as long, 1.63 times as long; sides subparallel in anterior three-quarters, then broadly rounded, but with sutures slightly elongate to form subacuminate apex; surface shiny, only with thick, deep, tangled punctures. Male.-Similar to female in habitus; lips shining, broadly transversely impressed below, convex above, with a rather weak, arcuate, transverse carina, punctured thicker, deeper and not so closely as in female, with few moderate hairs; pronotal asperities slightly rougher than in females; elytral declivity with deeper grooves, higher lateral elevations, and larger granules.
NEW SPECIES OF BARK BEETLES — BLACKMAN 225 Frons very short and wide, less than half as long as wide, convex
NEW SPECIES OF BARK BEETLES – BLACKMAN 225 Frown very short and broad, less than half as long as wide, convex. Frown from eye to eye flattened to more than a semicircle, faintly shining, very fine holes, moderately close, with fine, long, yellow hairs, longer and inwardly curved on the outside. Male. Slightly shorter and fatter than females, 2.77 times as long as wide; The frowns are convex, transversely depressed at the bottom, moderately coarsely pierced, with sparse hairs, short and fine; elj^tral slope.
NEW SPECIES OF BARK BEETLES — BLACKMAN 227
NOTE
