Camptocerus niger (Fabricius)

Camptocerus niger (Fabricius) View in CoL

(Fig. 22, 53)

Camptocerus niger (Fabricius) 1801: 393 View in CoL ( Hylesinus View in CoL ). Lectotype: male, [ GUYANA]: ‘Essequibo’ [River] (ZMUC). Lectotype designated Wood 1982: 415.

Camptocerus squammiger Chapuis 1869: 259 View in CoL . Lectotype (here designated): male, [ FRENCH GUIANA]: ‘Cayenne’ (ISNB). Synonymy: Eggers 1934: 27.

Camptocerus tectus Eggers 1943: 245 View in CoL . Holotype: male, BRAZIL: Pernambuco: Serra da Bernada , 5.vi.1894, ( Duhant), Strohmeyer Collection (SDEI). New synonymy.

Diagnosis. This species is distinguished by the unarmed (may have a very faint carina) apical epistomal margin, by the faintly impressed epistoma, by the nearly indistinct recurved carina on the basal epistomal margin (Fig. 2d) and by the 2 thick bands of setae on the male frons.

The female is distinguished from that of C. auricomus by the absence of pointed setae on declivital interstriae.

Redescription (male). 2.8-4.1 mm long (mean = 3.5 mm; n = 19); 1.8-2.1 times as long as wide. Color uniformly light orange to dark brown. Elytral interstriae bearing tan and dark brown scales creating a

variable pattern, often forming a ‘X’ shape (often abraded in older specimens). Occasionally, the sides of the ‘X’ are filled with brown scales forming a triangle on each elytron.

Epistoma weakly excavated, expanded to less than quarter length of head, apical epistomal margin unarmed; surface shagreened; lateral margins angled proximally, bearing a single row of setae; basal epistomal margin bearing a nearly indistinct (may be absent) sub-acute, transverse and recurved carina (Fig. 2d). Frons strongly excavated, with the dorsolateral margin of the eyes on the excavation; surface shagreened, lateral fifths glabrous, remaining surface densely covered by 2 thick bands of long, yellow setae, those clearly divided between the median line and extend to proximal epistomal margin; single row of setae lining the lateral margins; ventral margin elevated above epistoma; lateral and dorsal margins rounded. Antennal scape elongate and narrowly rounded distally, with a row of setae on ventral margin; segments 2-7 of funicle bearing brushes of setae 1.5 times the length of scape on ventral margin; dorsal margin bearing setae, those less than 4 funicle segments; anterior face of the club setose with a partial septum.

Apical pronotal margin broadly rounded (Fig. 5a), area between eyes lined with scales; apical third strigulate; basal two-thirds smooth with dense, deep, minute punctures; punctures and vestiture on median line; anterior third bearing long bristles; base and disk bearing short, fine hair-like setae; 2 rows of short bristles above lateral carinae; base strongly bisinuate (Fig. 8c); carina on lateral margin type F (Fig. 7f).

Scutellum shape type C ( Fig. 12c View Figure 12 ).

Elytral sides parallel, narrowing to a smooth apex; base never tumid from interstriae 7-9. Disk with each interstriae bearing 3 rows of semi-erect, spatulate setae and 1-2 rows on declivity; interstriae 3 times the width of striae; interstrial punctures strongly confused. Declivity occupying apical half of elytra; each interstriae bearing 2 rows of semierect, spatulate setae; striae weakly impressed, punctures each with a hair-like seta arising from the basal margin, those covering puncture. Tenth interstriae without a carina. Metepisternum shape Figure 22. Camptocerus niger , 2.8-4.1 mm, male. Lateral

(A), dorsal (B); male head anterior (C), anterior oblique type G ( Fig. 9g View Figure 9 ); setae palmately divided into 4 or

(D); female head anterior (E), anterior oblique (F). more filaments. Mesosternum shape type C ( Fig. 10c View Figure 10 ).

Male genitalia. Median lobe flat, lateral and apical margins with more sclerotization, proximal third parallel-sided, apex broadly acute, apical orifice lightly sclerotized; left side folded dorsally, narrow and strongly arcuate, reaching under right side; right side laterally folded under body and left side projecting above right margin of median lobe. Median struts stout, a quarter of body length. Internal sac central area lightly sclerotized, an accessory of the seminal value with more sclerotization and upside-down “V” shaped ( Fig. 53). Tegmen semi-circular, ventral side elongated proximally. Spicule destroyed in dissection.

Female. Similar to male except epistoma less impressed, less than a quarter length of head, unarmed; covered by 5 rows of setae. Frons flat; 3-4 rows of setae lateral to the median line; lateral margins sometimes strigulate. Each gena with a triangular mycangium (Fig. 4d). Pronotal anterior third covered with long, dense hair-like setae on anterolateral areas; long bristles absent; base and disk covered with short, fine hair-like setae.

Specimens examined. (36M, 31F, 1 unknown sex)

Type Material. Lectotype Camptocerus niger , M ( MZMC) ; Paralectotypes Camptocerus niger, NO LOCALITY : 3F, 1 unknown sex (MZMC); Lectotype Camptocerus squammiger , M ( ISNB) ; Paralectotypes (here designated) Camptocerus squammiger , 1F FRENCH GUIANA: Cayenne ( ISNB) ; ‘ South America’ , 1M, 1v ( ISNB) ; ‘ Patria’ , 1M ( ISNB) ; Holotype Camptocerus tectus , M ( SDEI) ; Paratypes, Camptocerus tectus BRAZIL: Pernambuco: Serra da Bernada , 5.vi.1894, ( Duhant), 2M (SDEI).

Other material. BOLIVIA: Beni: Cosincho Region, ( G.L. Harrington), 1M (USNM); No specific locality ‘ Aragua’, 1F (NHMW); Santa Cruz : Buena Vista vic., Flora & Fauna Hotel, 22-26.x.[20]02, ( Morris / Wappes), 1F (FSCA). BRAZIL: Amazonas: Amazonas Parque, 30 km E Manaus, Amazon River, 110 ft, 17.ii.1981, ( Chen-wen Young), 1M, 1F (RJRC), 1F (MSUC); AM 010 km 26, Reserva Ducke, ex. malaise trap, 21.ii.1978, ( Jorge Arias), 1M, 1F (USNM); Goyas [= Goiás]: Jatahy, x.1897 - i.1898, 1F (MNHN); [ Pará]: Belem, no. 144, xi.1974, ( John F. Reinert), 1F (FSCA); Altamira, no. 96, xi.1974, ( John F. Reinert), 1M (FSCA); Santa Catarina : Corupa (Hansa Humbolt), xi.1945, ( A. Maller), 1M (AMNH). COLOMBIA: Cauca: 10 km SE Tambo, ex. ‘Anime’ [= local name of Protium sp. ], 9.vii.1970, ( S.L. Wood), 7M, 10F (MSUC); Putumayo: Mocoa, 26.vi.1974, ( M. Cooper), B.M. 1964-548, 1F (BMNH). ECUADOR: Napo: Reserva Ethnica Waorani, 1 km S Onkone Gare Camp, -0.652778, -76.433333, 220 m, ex. canopy fogging, i.1995, ( T.L. Erwin et al.), lot 996, 1M (USNM); x.1995, lot 1226, 1M, 1F (USNM); vii.1995, lot 1548, 1F (USNM); Pastaza: Cononaco, -1.55, -75.583333, ex. malaise trap, 29.v.1976, ( J. Cohen), 2M (USNM). FRENCH GUIANA: Hwy D6 to Kaw, 33.5 km SE of Roura 10.ii.[19]86, ( G. Tavakilian), 1F (TAMU); No specific locality: ‘Cayenne’, 1M (BMNH). GUYANA: No specific locality: ‘Essequibo’ [River] [= Guyana], 2M (MZMC). PERU: Loreto: 1.5 km N Teniente Lopez, -2.583333, -76.1, 210-240 m, ex. flight intercept trap, 9-22.vii.1993, ( R. Leschen), 1F (USNM); 70 km SSW from Iquitos to Nauta, 150 m, 5.iii.2008, ( A. Petrov), 6M, (MSUC). SURINAME: Commewijne: Akintosoela, 32 km SE Suriname River bridge, road to Redi Doti, 5.271389, -70.2517, 40 m, ex. flight intercept trap, 29.vi.-3.vii.1999, ( Z.H. Falin, B. DeDijn, A. Gangagin), 1M (SMEC); No specific locality: ‘Surinam’, 4F (MZMC). VENEZUELA: Aragua: Rancho Grande, 1500-1900m, 8.v.1970, ( O’Brien, Marshall), 1M (CASC). NO SPECIFIC LOCALITY: ‘America meridionali’ [= South America], 2M (ISNB).

Discussion. Camptocerus tectus is here designated as a synonym of C. niger based on lack of a transverse carinae on the male frons and identical male genitalia. When Eggers described C. tectus , only specimens of C. auricomus were examined for comparison and not C. niger ( Eggers 1943) .

Distribution. Bolivia ( Beni, Santa Cruz ), Brazil (Amazonas, Mato Grosso, Pará, Pernambuco, Santa Catarina ), Colombia ( Cauca, Putumayo), Ecuador ( Napo, Pastaza), French Guiana, Guyana, Peru ( Loreto), Suriname, Venezuela ( Aragua).

Hosts. Hirtella sp. , ( Chrysobalanaceae ), “Iratinga” ( Beaver 1972), Licania kunthiana Hook. f. ( Chrysobalanaceae ), Protium spp . ( Burseraceae ) (= “Almesca branca” [ Brazil], “Almesca vermelha” [ Brazil], “Breu branco” [ Brazil]) ( Beaver 1972).

Biology. Beaver (1972) provides a detailed life history. Camptocerus niger females excavate a short circumferential gallery below the bark on both sides of the entrance tunnel, and are identical to those produced by C. auricomus (S. M. Smith, pers. obs.) and C. rectus ( Beaver 1972 referencing a pers. comm. with S.L. Wood). Males of Camptocerus niger were also reported to partially block their entrance tunnels median line; anterior third bearing long, slender bristles; base and disk bearing short, fine hair-like setae; 2 rows of short bristles above lateral carinae; base strongly bisinuate (Fig. 8c); carina on lateral margin type F (Fig. 7f).

Scutellum shape type C ( Fig. 12c View Figure 12 ).

Elytral sides parallel, narrowing to a smooth apex; base never tumid from interstriae 7-9. Disk with each interstriae bearing 3 rows of semi-erect, thin, spatulate setae and 1-2 rows on declivity; interstriae 3-5 times the width of striae; interstrial punctures strongly confused. Declivity occupying apical half of elytra; each interstriae bearing 2 rows of semi-erect, spatulate setae; first interstria with uniseriate spatulate setae on apical third; striae weakly impressed, punctures each with a hair-like seta arising from the basal margin, those covering puncture and terminating at basal margin of apical puncture. Tenth interstriae without a carina. Metepisternum shape type G ( Fig. 9g View Figure 9 ); setae palmately divided into 4 or more filaments. Mesosternum shape type C ( Fig. 10c View Figure 10 ).

Male genitalia. Median lobe arcuate, lateral and apical margins with more sclerotization, apex acute; apical orifice lightly sclerotized; lateral margins folded dorsally, each forming a triangle with an apex at the midpoint of median lobe. Median struts broad, stout, a third of body length; apical orifice membranous. Internal sac lightly sclerotized, apically divided into 2 dorsoventrally flattened lobes, ventral lobe slightly reniform, arcuate laterally; dorsal lobe projecting above ventral lobe, flat; basal half composed of 2 narrowly elongated projections densely bearing long hair-like setae ( Fig. 54). Tegmen semi-circular, ventral side elongated proximally. Spicule destroyed in dissection.

Female. Similar to male except epistoma, moderately impressed, less than a quarter length of head, unarmed; covered by 4 rows of setae. Frons flat, with 5-7 rows of setae lateral to the median line. Each gena with a triangular mycangium (Fig. 4d). Unable to examine antennae due to an excessive amount of glue. Pronotal anterior third covered with dense, long slender hair-like setae on anterolateral areas; long bristles absent.

Specimens examined. (6M, 2F)

Type Material. Lectotype Camptocerus occidentalis , M ( USNM) ; Paralectotypes BOLIVIA: No specific locality, ‘Bolivia’, 1M (BMNH), 2F (USNM).

Other material. PERU: Junín: Tarma : Utcuyacu & Agua Dulce, iii.1948, ( F. Woytkowski), 1M ( AMNH) ; No specific locality: ‘Peru’, ( W. Muller Vermacht), 1909, 1M ( USNM), 2M ( SMTD) .

Distribution. Bolivia, Peru ( Junín).

Hosts. Unknown.

Biology. Unknown.