Male. Body length: 6.48mm (6.2–6.7 mm), wing length: 4.9mm (4.8–5.0 mm) (n=4).

Coloration: Frontal vitta dark brown; face, parafacial, and gena blackish with silver pruinosity; fronto-orbital plate blackish with ferrugineous golden pruinosity. Antenna black with scape and pedicel orange to light brown. Palpus yellow, with basal third slightly darker; proboscis dark brown. Thorax dark brown with silver pruinosity; scutum with lateral margins silver pruinose from humeral to postalar callus, and three silver pruinose stripes (alternated by four dark brown stripes), two lateral on dorsocentral rows and one median on acrostichal rows; median stripe golden pruinose after suture and toward scutellum; scutellum dark brown but becoming lighter and then reddish at apex. Wing hyaline; calypters white; halter brown, knob dark brown. Legs dark brown, with silver pruinosity on coxae and femora. Abdomen dark brown with lateral margins of tergites 1+2 and 3 reddish; with silver pruinosity on basal half of tergites 3 and 4, rather weak laterally and with dark brown median line on all tergites; tergite 5 dark brown with golden pruinosity on basal half (Fig. 1).

Head: Eye densely setulose, setulae slightly longer than width of arista. Six pairs of frontal setae, three below base of antenna. Two reclinate frontal setae, anterior seta stronger. Inner vertical setae strong, parallel, and slightly reclinate; outer vertical setae divergent, very weak and eventually undistinguishable from adjacent postocular setae. Fronto-orbital plate with fine pale-colored setulae from vertex (more densely) almost reaching lowermost frontal seta. Fronto-orbital plate as wide as parafacial and frontal vitta. Facial ridge with stout and erect setae almost reaching level of insertion of arista. Parafacial bare. Postpedicel 3.5× longer than pedicel, almost reaching level of vibrissa, and with margins parallel with the same width from base to apex; arista about 1.1–1.2× length of postpedicel and abruptly narrowing at the middle. Lower facial margin weakly warped forwards. Oral margin axis about 0.6 length of antennal axis. Vibrissa strong, inserted at the level of the lower facial margin. Gena height about 1/4 eye height. Genal dilation covered by fine black setulae. No black setulae posterior to postocular setulae, only the usual white setulae. Palpus filiform, enlarged on apical half; labella moderately developed, about half length of prementum, the latter slightly longer than palpus.

Thorax: Acrostichals 3+3. Dorsocentrals 3+3. Posthumerals 1, aligned with intralar row and laterad to second anterior dorsocentral seta. Presuturals 2, aligned with supra-alars, posterior one stronger. Humerals 4, three aligned and one more anterior between inner and median setae. Notopleurals 2. Intra-alars 1+3, presutural seta close to suture and very weak; intra-postalar weak. Postsutural supra-alars 3, but one additional short seta between second and third supra-alars; anterior most (prealar) weakly developed, about 1/5 length of strongest supra-alar and clearly shorter than first postsutural intra-alar and dorsocentral. Prosternum setulose. Proepisternum bare. Six strong anepisternal setae. Katepisternals 3. Katepimeron (barette) bare (but sometimes 1–2 setulae anteriorly). Scutellum with one basal, two lateral, one apical pairs of setae; discals weakly developed and irregularly located.

Wing: costal spine very weakly developed; base of R4 + 5 setulose dorsally from base almost up to r-m, and ventrally with about 3 setulae at base;Mvein with a fold at membrane beyond the bend; r-m crossvein located medially between tips of Sc and R1, or slightly beyond (towards apex); posterior section of CuA1 about or longer than half of preceding section; and preceding section of CuA1 as long as section of M from base until the bend.

Legs: Fore tibia with anterodorsal row of setae, basal setae stronger; 2 posterior setae, submedian stronger. Mid femur with 3–4 anterior setae on median third; 3 oblique preapical setae on posterior-posterodorsal surface; posteroventral row of fine and long setae on basal 1/2. Mid tibia with 2 anterodorsal, 2 posterodorsal, and one submedian ventral setae (Fig. 2). Hind tibia with anterodorsal row of short setae (irregularly sized) but one long submedian seta; and with 3 anteroventral setae, the apical one longer; and posterodorsal row of setae at basal 2/3 but one long seta at lower end.

Abdomen: Tergite 1+2 with one median, and one lateral marginal pair of setae. Tergite 3 with one median and one lateral marginal pair of setae. Tergite 4 bearing marginal row of setae. Tergite 5 with discal and marginal rows. Tergites covering sternites. Terminalia (Figs. 3–6): Sternite 5 M-shaped, posterior processes well developed (Fig. 3). Cercal plate enlarged at base and strongly acuminate at apex, well attached to each other along midline (Fig. 5), apex sinuously curved in profile (Fig. 4), basal two-thirds with dense fine and long setulae. Surstyli narrowed and more sclerotized on truncate apex (Fig. 4). Pregonite slender, with strong setulae on apex and several weak setulae on posterior margin; postgonite narrow on apex (Fig. 6). Aedeagal apodeme short, less than half length of distiphallus (Fig. 6). Epiphallus absent; distiphallus robust, spinulose on anterior membrane and on anterior plate (Fig. 6).

Female: Body length: 5.6mm (4.4–6.3 mm), wing length: 4.6mm (3.8–5.2 mm) (n=3). Differs from male by the following: one reclinate and one lateroreclinate frontal setae. Two proclinate fronto-orbital setae. Outer vertical setae divergent and distinctly developed but shorter than inner verticals. Fronto-orbital plate with sparse minuscule setulae from vertex almost to lowermost frontal seta. Fronto-orbital plate wider than parafacial and as wide as frontal vitta. Postpedicel 3X the length of pedicel.

Material examined: URUGUAY, 1 male and 1 female, 5.xi.1957, Frank Wilson leg. (BMNH). ARGENTINA, Santa Fé, 1 male and 1 female, 3.xi.1943, Parker & Silveira leg. (ex. Listroderes, in Montevideo, Paras. Lab) (BMNH); Santa Fé, 1 female, 29.x.1942, no collector (MZSP); Buenos Aires, Moreno, 3 males, xii.1970, M. Fritz leg. (MZSP); “Argentina, S.A.,” 1 male, x.1943, F. Parker leg. (MZSP).

Hosts: Coleoptera-Curculionidae: L. obliquus Klug. (Blanchard, 1943), Conotrachelus subnebulosus (Parker et al. 1951, Guimarães 1977), Listroderes costirostris obliquus (Compere 1946, Parker et al. 1951, Guimarães 1977, Arnaud 1978), Listroderes sp. (Parker et al. 1951, Guimarães 1977); Coleoptera-Chrysomelidae: Calligrapha polyspila (Parker et al. 1951, Guimarães 1977).

Male. Body length: 8.2 mm, wing length: 6.6mm (lectotype)

Coloration: Frontal vitta dark brown to black; face and parafacial silver pruinose; fronto-orbital plate faint golden pruinose. Antenna black. Palpus yellow, with basal third brown; proboscis dark brown. Thorax dark brown to black with silver pruinosity; scutum with lateral margins silver pruinose from humeral to postalar callus, and three silver pruinose stripes alternated by black stripes (faint golden pruinose in paralectotype), two lateral on dorsocentral rows and one median on acrostichal rows. Wing hyaline; calypters white; halter brown, knob dark brown. Legs dark brown. Abdomen dark brown but reddish on lateralmargins of tergites 1+2 to 4 with remarkable black median band at middle of abdomen, and conspicuous pattern of silver pruinosity (Fig. 7).

Head: Eye densely short setulose. Six to seven pairs of frontal setae, three below base of antenna. Two reclinate frontal setae. Fronto-orbital plate with sparse fine and short setulae starting on vertex and hardly reaching level of lunula. Fronto-orbital plate as wide as parafacial and frontal vitta (paralectotype with fronto-orbital plate slightly wider than vitta). No black setulae behind postocular setulae, only the usual white setulae. Facial ridge with stout and erect setae almost reaching level of insertion of arista. Parafacial bare. Postpedicel 2.6x longer than pedicel, and rather slender, very slightly wider at apex than at base; arista elongated and slender, abruptly narrowing at middle and about 1.3x length of postpedicel. Lower facial margin weakly warped forwards. Oral margin axis about 0.8 length of antennal axis. Vibrissa strong, inserted at the level of lower facial margin. Gena height about 1/5 eye height. Genal dilation covered by fine black setulae. Palpus filiform, curved but not enlarged to apex; labella developed, half length of prementum, the latter subequal to palpus in length.

Thorax: Acrostichals 3+3. Dorsocentrals 3+4. Posthumerals 2, aligned with intralar row, posterior seta stronger and anterior located lateral to humerals. Presuturals 2, one inner and more anterior, another outer (aligned with supra-alars) and stronger. Humerals 4, three aligned and one more anterior between inner and median setae. Notopleurals 2. Intra-alars 1+3, presutural one very close to suture and weak; intra-postalar present, long and fine. Postsutural supra-alars 3, the anteriormost (prealar) weak, conspicuously shorter than first postsutural intra-alar and dorsocentral; with additional seta between second and third supra-alars present and very weak. Prosternum setulose. Proepisternum bare. Six strong anepisternal setae. Katepisternals 3. Katepimeron (barette) setulose anteriorly. Scutellum with one basal, two lateral and one apical pairs of setae; no discals.

Wing: costal spine very weakly developed; base of R_{4 + 5} setulose dorsally and ventrally, with 2–3 setulae (paralectotype with 6 setulae dorsally); crossvein r-m located halfway between tips of Sc and R1; M vein with fold on membrane beyond the bend; posterior section of CuA₁ shorter than half of preceding section; and preceding section of CuA₁ as long as section of M from base until to the bend.

Legs: (Fore legs of lectotype missing, examined in the paralectotype) Fore tibia with anterodorsal row of short setae, basal setae stronger; 2 posterior setae, submedian stronger. Mid femur with 3 anterior setae on median third; row of anteroventral fine setae, longer at basal half and with very long submedian seta; 3 oblique preapical setae on posteriorposterodorsal surface; posteroventral row of fine setae, longer on basal 1/2. Mid tibia with 2 strong anterodorsal (the lower one longer), 2 posterodorsal (the lower one longer), and one strong submedian ventral seta. Hind tibia bearing anterodorsal row of short setae (of variable sizes) but two strong medial setae on midsection and on basal third; with 3–4 anteroventral setae (the lowermost longer); and one posterodorsal row on basal 2/3, with two strong setae on median third (the lowermost longer).

Abdomen: Tergite 1+2 with pair of median marginal setae and two or three lateral marginal pairs. Tergite 3 with one median and two lateral marginal pairs of setae. Tergite 4 bearing marginal row of setae. Tergite 5 with discal and marginal rows. Tergites covering sternites. Terminalia (Figs. 8–11): Sternite 5 M-shaped, posterior processes well developed (Fig. 8). Cercal plate elongate and well attached to each other along midline, tapering toward apex (Fig. 10), in profile curved inward (Fig. 9), basal two-thirds with dense fine and long setulae. Surstyli with broad and robust base that contrasts with reduced, delicate apex (Figs. 9 and 10). Pregonite directed posteriorly and strongly setulose; postgonite curved downward and pointed apically (Fig. 11). Distiphallus robust, anterior plate with spinulae on apex (Fig. 11). Epiphallus curved ventrally (Fig. 11).

Female: Unknown

Hosts: No records

Type-material examined: Lectotype male (NMW), by present designation, labeled “Cuba,” “tessellata/det. B. B.”; “Tetragrapha/tessellata Br. Bgst./Type”; “LECTOTYPE ♂/of Tetragrapha/tessellata B & B/designated 1982/D. M. Wood”; “LECTOTYPE ♂/Tetragrapha tessellata/Brauer & Bergenstamm/S.S. Nihei des. 2006” (added herewith). Paralectotype male (NMW), labeled “Westindien/Coll. Winthem”; “tessellata/det. B. B.”; “Tetragrapha/tessellata Br. Bgst. /Type”; “PARALECTOTYPE ♂/of Tetragrapha/tessellata B & B/designated 1982/D. M. Wood”; “PARALECTOTYPE ♂/Tetragrapha tessellata/Brauer & Bergenstamm/S.S. Nihei des. 2006” (added herewith). The lectotype missing the forelegs, whereas the paralectotype missing right foreleg and right hind tibia and tarsi, and thorax damaged around the pinned portion. The paralectotype was dissected and the terminalia was illustrated.

Lectotype designation. The two type specimens examined here are labeled by D.M. Wood as lectotype and paralectotype (labels dated by 1982); that designation possibly follows Townsend (1931: 172), who considered the specimen from Cuba as the “holotype” [sic]. Aldrich and Webber (1924) mentioned that the “type” had been deposited at the USNM but Townsend (1931) corrected the location of the type as being the NMW. I herein designate the Cuban specimen formerly labeled by Wood as the lectotype.

Comments. Townsend (1927: 261) mentioned the occurrence of Tetragrapha in Brazil but did not give an exact locality for it. I have not found Tetragrapha among insect material collected in Brazil or throughout South America.