Hylomyrma blandiens Kempf, 1961

Ulysséa, Mônica Antunes, 2021, Taxonomic revision of the Neotropical ant genus Hylomyrma Forel, 1912 (Hymenoptera: Formicidae: Myrmicinae), with the description of fourteen new species, Zootaxa 5055 (1), pp. 1-137 : 28-32

Hylomyrma blandiens Kempf, 1961

Figures 24 , 25 , 26 , 80A, 80F , 82F , 84 (map)

Hylomyrma blandiens Kempf, 1961: 500 (W, Q). Holotype: SURINAM [E: Saramacca]: Dirkshoop , v.1959, I.v.d. Drift col., [soil sample from primary forest], 27-iiicd-10 (1W) (ANTWEB-1008990 MZSP67313 ) [ MZSP] [examined] . Paratype: SURINAM [E: Saramacca]: La Poulle , viii.1959, I.v.d. Drift col., [soil sample from shrub on sand], 31-xivb-8 (1Q) ( MZSP67314 ) [ MZSP] [examined] .

Diagnosis. Head dorsum with regular and longitudinal striae, mesial striation in part directed to posterior margin and in part anteriorly divergent and posteriorly convergent, interspaces distinguishable; mesosoma covered with regular to irregular striae of variable thickness, interspaces indistinguishable; dorsal margin of petiole discontinuous, dorsum with same striation of mesosoma lateral; subtriangular projection on mesoventral surface of petiole; subpostpetiolar process weak, subtriangular; transverse striae on profemur posterior surface; protibia extensor surface striate; long striae on tergum of first gastral segment.

Redescription. WORKER (n=4) ( Fig. 24A–C ): HL 0.92 (0.90–0.96); HW 0.86 (0.82–0.89); ML 0.54 (0.54–0.56); SL 0.62 (0.58–0.64); MOD 0.24 (0.20–0.24); PNW 0.63 (0.62–0.64); WL 1.22 (1.20–1.23); PSL 0.20 (0.20–0.27); PL 0.54 (0.54–0.55); PW 0.24 (0.23–0.25); PPL 0.32 (0.32–0.34); PPW 0.32 (0.32–0.33); GL 0.96 (0.96–1.06); TL 4.50 (4.50–4.69); CI 93.47 (89.36–92.70); SI 72.09 (65.16–76.19); OI 27.90 (22.47–27.90). Midsized. Integument subopaque, except for the shiny gaster. Brownish body, lighter appendices (yellowish). Thin and mostly unbranched setae ( Fig. 80A ), long to midsized, suberect to subdecumbent; few branched setae with 2–3 or multiple short branches of equal size, especially on petiole ( Fig. 80F ).

Head subquadrate; posterior margin straight. Mandible masticatory margin with 5 teeth. Anterior margin of clypeus straight medially, with a pair of small teeth laterally; median area of clypeus striate, with regular and longitudinal striae, being 4 thicker striae, interspaces indistinguishable. Frontal triangle with 1 sagittal stria. Scape short, not reaching head posterior margin; apical antennomere shorter than the 3 previous antennomeres together. Frontal carina slightly concave posterior to antennal socket. Eye drop-shaped, small-sized, larger diameter with 10 ommatidia. Regular and longitudinal striae on head dorsum, mesial striation in part directed to posterior margin and in part anteriorly divergent and posteriorly convergent, interspaces between thicker striae in part smooth and int part filled with thinner striae. Head lateral and laterodorsal regions with regular and longitudinal striae converging to eye margin, interspaces indistinguishable; gena striate, irregular and semicircular striae circumscribe the torulus, not reaching eye margin, being 2–3 thicker striae, interspaces distinguishable. Interspaces between striae on head ventral surface indistinguishable.

Mesosoma covered with regular to irregular striae, thinner striae (microsculpture) of variable thickness superimposed on thicker striae (macrosculpture), interspaces indistinguishable. Transverse striae on pronotum anterior region continuing on lateral surface; longitudinal striae on pronotum posterior region and mesonotum; thinner striae (microsculpture) superimposed on thicker striae (macrosculpture) on mesosoma lateral, striation in part continuing transversely on propodeum dorsum and in part directed to propodeal spine. Promesonotal junction and metanotal groove indistinct. Transverse carina well-marked. Dorsal margin of mesosoma continuous, convex. Propodeal lobe bidentate, acute dorsal tooth slightly longer than the blunt ventral tooth; dorsal tooth length slightly longer than 1 /2 of propodeal spine length. Propodeal spine midsized, straight (LV), divergent (DV), sculptured. Procoxa striae of uniform thickness; regular and transverse striae on C2 and C3. Profemur covered with regular and transverse striae. Regular and longitudinal striae on protibia extensor surface.

Dorsal margin of petiole discontinuous. Subtriangular projection on mesoventral surface of petiole. Convex node; regular and transverse striae on ventral and anterior surfaces, interspaces distinguishable; striae on anterior surface and dorsoanterior region continuing on lateral surface; irregular striae of variable thickness on dorsal surface, drop-shaped or semicircular, interspaces indistinguishable. Postpetiole and subpostpetiolar process with regular and longitudinal striae; subpostpetiolar process weak, subtriangular.

First gastral segment striation similar to postpetiole striae; long striae on tergum, longer than postpetiole length; sternite striation covering the laterobasal region.

QUEEN (n=4) ( Fig. 25A–C ): HL 0.88 (0.88–1); HW 0.84 (0.84–0.94); ML 0.58 (0.56–64); SL 0.63 (0.62–0.68); MOD 0.26 (0.24–0.27); PNW 0.70 (0.70–0.84); WL 1.30 (1.30–1.50); PSL 0.22 (0.22–0.31); PL 0.58 (0.56–0.62); PW 0.25 (0.25–0.28); PPL 0.36 (0.36–0.41); PPW 0.37 (0.37–0.41); GL 1.16 (1.16–1.30); TL 4.86 (4.86–5.43); CI 95.45 (92.39–95.45); SI 75 (72.94–75); OI 30.95 (27.95–30.95). Medium to large-sized. Color, pilosity, and some sculpture characters shared with conspecific workers, only slightly larger. Larger diameter of eye with 12 ommatidia. Striae on scutum longitudinal, regular to irregular, going from an anterior central point towards transcutal suture, interspaces indistinguishable; thinner striae (microsculpture) between thicker striae (macrosculpture). Longitudinal striae of variable thickness on anepisternum and katepisternum, mostly regular on anepisternum and irregular on katepisternum, interspaces indistinguishable. Axilla and scutellum with same sculpture of scutum. Scutoscutellar sulcus inconspicuous. Transverse striae on propodeum (DV). Lateral surface of mesosoma with irregular striae directed to propodeal spine. Wings unknown.

MALE (first description) (n=1) ( Fig. 26A–C ): HL 0.72; HW 0.64; ML 0.43; SL 0.22; MOD 0.28; PNW 0.66; WL 1.20; PL 0.54; PW 0.22; PPL 0.32; PPW 0.30; GL 1.12; TL 4.33; CI 88.88; SI 34.37; OI 43.75. Brownish body, lighter appendices (yellowish), darker gaster. Mandible with 5–6 teeth. Interspaces between head dorsum striation smooth. Scutum mostly smooth anteriorly and covered with regular to irregular and thinner striae posteriorly. Anepisternum and katepisternum mostly covered with longitudinal, regular and thinner striae, interspaces distinguishable. Scutellum with regular to slightly irregular striae, thicker than scutum striae, interspaces distinguishable. Propodeum with irregular striae assuming multiple directions, interspaces distinguishable. Propodeal lobe subquadrate. Petiole and postpetiole mostly covered with longitudinal, regular and thinner striae, interspaces distinguishable. Tergum of first gastral segment with same striation of postpetiole, striae restricted to basal region. Wings as in Fig. 82F .

Etymology. Blandus (Latin) = smooth tongue, flattering, friendly.

Comments. Hylomyrma blandiens , H. dentiloba , and H. jeronimae have similar morphology. Hylomyrma blandiens was described based on two specimens (worker and queen), and H. dentiloba based on one worker. Hylomyrma blandiens has a broad distribution in northwestern South America, from Bolivia to French Guiana ( Fig. 84 ), whereas H. dentiloba and H. jeronimae are restricted to Central America ( Figs. 84 , 86 ).

Hylomyrma blandiens can be distinguished from H. dentiloba (characteristic in parentheses) in the distinguishable interspaces on head dorsum striation (vs. indistinguishable interspaces), the convex dorsal margin of mesonotum (vs. straight), the propodeal spine slightly longer than the dorsal tooth of propodeal lobe (vs. shorter), and the striae length on the first gastral segment similar to the postpetiole length (vs. shorter than the postpetiole length). Hylomyrma blandiens can be distinguished from H. jeronimae in the regular striae on the mesial region of head dorsum in part directed to posterior margin and in part anteriorly divergent and posteriorly convergent (vs. regular to irregular striae and divergent), the drop-shaped eye (vs. reniform), the longitudinal striation on the mesosomal dorsum (vs. striae assuming multiple directions), the discontinuous dorsal margin of petiole (vs. continuous), and the striae on the tergum of the first gastral segment extending up to its first third (vs. restricted to its basal region). Also, H. blandiens resembles H. macielae in the regular divergent-convergent striae on the mesial region of head dorsum, and the indistinguishable interspaces on the mesosomal striation. Hylomyrma blandiens can be distinguished from H. macielae in the longitudinal striae on the mesosomal dorsum (striae assuming multiple directions in H. macielae ). The western limit of the distribution of H. blandiens , the east side of The Andes in Ecuador and Colombia ( Fig. 84 ), overlaps in part with the distribution of H. macielae ( Fig. 86 ).

There is morphological variation across the range of H. blandiens . Specimens from Ecuador have longer propodeal spines than elsewhere in the range. Specimens from Ecuador and Tachira, Venezuela, have a more pronounced mesoventral projection on the petiole. Striae on the mesial area of the head dorsum vary from being longitudinal to somewhat angled, divergent anteriorly and convergent posteriorly.

Distribution. This species is widespread in northwest South America ( Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela) and Trinidad ( Trinidad and Tobago) ( Fig. 84 ).

Natural history. Hylomyrma blandiens specimens are usually collected in samples of sifted leaf-litter in tropical rainforest. One Hylomyrma blandiens nest with 24 specimens (3Q 21W) was collected by M.A. Ulysséa in a fallen twig on the ground in the Peruvian Amazon (Madre de Dios, Estación Biológica Villa Carmen). Apart from the specimens, plant remains and parts of a Curculionidae imago were also found inside the nest, but there were no larvae or pupae.

Additional material examined (202 workers, 32 queens, 1 male): BOLIVIA: Cochabamba: 109k E Cochabamba at Lagunitas, 17°06′22″S, 65°40′57″W, 01.ii.99, R. Anderson, Mont. evergreen forest, litter, #18644 (2W) [ MZSP] ; #18636 (2W) [ MZSP] ; La Paz: Caranari, Sara Ana, 410msnm, 12.xii.2011, A. Aduviri col., Bosque, Berlese (1W) (CBF–Hym(Form)-004761) [ CBF] ; [department unknown]: Rio Negro , Jan 1921 –22, W.M. Mann collector, Mulford BioExpt[Biological Exploration] (2W) [ USNM]. BRAZIL: AC[Acre]: Porto Walter, 08°15′31.2″S, 72°46′37.1″W, 05.ii–17.iv.1997, J. Caldwell, Bufo typhonius , #12688 (2W) [ CEPLAC] ; same except #13529 (1Q) [ CEPLAC] ; #13529 (1W) [ DZUP] ; AM[Amazonas]: Manaus, Dimona Station, INPA, 100ha Plot, 130m, 60.09414°′W, 2.34121°′S, 16.i.2009, J. Sosa-Calvo, rainforest, leaf litter, Winkler sample, JSC090116-LS05 (1W) [ USNM] ; same except JSC090116-LS06 (1W) [ USNM] ; 104m, 60.09687°′W, 2.35365°′S, 13.i.2009, JSC090113- LS07 (2W) [ USNM] ; PNJ Rio Carabinani , mar. Esq., Cachoeira Paredão, 2°10′20″S, 61°32′22″W, 29.vii–1.viii.1995, A. Santos col., F. Primária 2, Arm. Pitfall (3) (1W) [ INPA] ; Presidente Figueiredo, I. Pe Inchado, L. Balbina, 1°54.45′S, 59°29.75′W, 25/02/[19]94, [M.] Queiroz col., mata secundária, serapilheira (1W) [ MPEG] ; same except 1992/[19]94 [ CEPLAC] ; MT[Mato Grosso]: Alta Floresta, Frag. 155-C2, 56°25′49″E, 88°95′55″N, 11.vi.2008, Castuera L.O. (1W) [ MZSP] ; same except Frag. 151-B3, R.E. Vicente col., winkler (1Q) [ MZSP] ; RO[Rondônia]: Porto Velho, Área Abunã, A11P1, 09°38′05.6″S, 65°27′11.2″W, 17–27.vii.2013, Mazão G.R. & Probst R.S. cols. (1W) [ DZUP] ; same except A10P2, 09°35′53.1″S, 65°22′00.1″W, 17–27.vii.2013, Mazão G.R. & Probst R.S. cols . (1W) [DZUP]; A11P4, 09°38′05.6″S, 65°27′11.2″W, 4–17.i.2012, Dattilo, W.F. & Mazão, G.R. cols. (1W) [MZSP]; A12P1, 09°36′29.7″S, 65°22′40.7″W, 17–30.vi.2012, Sanhudo, C.E.D. & Andriolli, F.S. cols. (2W, one worker just petiole, postpetiole and gaster) [MZSP]; A12P1, 04–18.ix.2012, Ulysséa, M.A. & Prado, L.P. cols. (5W) [MZSP]; A12P3, 09°36′29.7″S, 65°22′40.7″W, 04–18.ix.2012, Ulysséa, M.A. & Prado, L.P. cols. (3W) [MZSP]; A12P4, 09°36′29.7″S, 65°22′40.7″W, 04–18.ix.2012, Ulysséa, M.A. & Prado, L.P. cols. (3W) [MZSP]; Porto Velho, Área Caiçara, C1P3, 09°26′14.6″S, 64°49′58.2″W 17–27.vii.2013, Mazão G.R. & Probst R.S. cols. (1W) [DZUP]; same except C1P4, 09°26′31″S, 64°51′40″W, 02–16.x.2013, Mazão G.R. & Mendonça R.T.T. cols. (1W) [DZUP]; C3P4, 09°26′46.8″S, 64°49′31.1″W, 4–18.ix.2012, Vicente R.E. & Oliveira J. cols. (1W) [DZUP]; C3P1, 17–30.vi.2012, Sanhudo, C.E.D. & Andriolli, F.S. (1W) [MZSP]; C1P4, 09°26′14.6″S, 64°49′58.2″W, 04–18.ix.2012, Ulysséa, M.A. & Prado, L.P. cols. (1W) [MZSP]; C3P1, 09°26′41″S, 64°49′39″W, 02–16.x.2013, Mazão G.R. & Mendonça R.T.T. cols. (1W) [DZUP]; Porto Velho, Área Mutum, M5P1, 09°35′29.5″S, 65°02′57.6″W, 4–18.ix.2012, Ulysséa, M.A. & Prado, L.P. cols. (1W) [MZSP]; same except M6P1, 09°35′56″S, 65°02′59″W, 17–27.vii.2013, Mazão G.R. & Probst R.S. cols. (1W) [DZUP]; M6P2, 09°36′27″S, 65°02′55″W, 2–16.x.2013, Mazão G.R. & Mendonça R.T.T. cols. (1W) [DZUP]; M8P1, 09°37′42.9″S, 65°03′27.8″W, 4–18.ix.2012, Vicente R.E. & Oliveira J. cols. (4W) [DZUP]; M8P2, 09°37′42.9″S, 65°03′27.8″W, 4–18.ix.2012, Ulysséa, M.A. & Prado, L.P. cols. (1W) [MZSP]; Ouro Preto do Oeste, 28.iii.1985, J. Dias, Res. INPA n°0170 (1W) [INPA]. COLOMBIA: Caquetá: [Puerto] Solano, PNN [Serranía de] Chiribiquete, R. Sararamano, B. Verde military, 300m, 0°10′48″N, 72°37′24″W, 9.iv.2000, E. González leg., Winkler 14 (1W) [IHVL]; same except 17.iv.2000, Winkler 2 (1W) [IHVL]. ECUADOR: Orellana: Tiputini Biodiversity Station, Jan.2004 – Jan.2006, A.L. Mertl col., dissertation 2009, litter nest, tropical rainforest, terra firme (1W) [MCZC]; Napo: 20km S of Tena, 600m, 11 Jul 1976, S. & J. Peck, B360 (2W) [MCZC]. FRENCH GUIANA: [Cayenne]: Kaw. Mt., Amazon Nature Lodge, 950′, 52°12.349′W, 4°33.426′N, T. Schultz, U. Mueller & J. LaPolla, 2° forest, leaf litter, Winkler sample, TRS050719-01-LS14 (1W) [USNM]; same except TRS050719- 01-LS10 (3W 1Q) [USNM]; TRS050719-01-LS15 (1W) [USNM]; TRS050719-01-LS17 (1W) [USNM]; Nouragues Field Station, XII Trail, 39m, 52°40.57′W, 4°5.325′N, 27.vii.2005, T.R. Schultz, J.S. LaPolla & D. Price, 1° forest, litter sample, Winkler sample, TRS050727-02-LS12 (2W) [USNM]; same data (1M) (USNMENT00537690) [USNM]; Nouragues Natural Reserve Station, 102km SW of Cayenne, lat 4.08799, lon -52.67978, 145m, 21.viii-1.ix.2018, Rainforest, Ant Course 2018 (2W) [MZSP]; Nouragues, 4°05′20″N, 52°40′28″O, 100–140m, 25.iii.2006, Jérôme Orivel (+autres), Fourmis de litière, Winkler, GPWTr10 (1Q) [MZSP]; [Saint Laurent du Maroni]: Maripassoula, 21/ 23.vi.2000, Delabie, Durou, Dejean, Corbara & Giberneau [leg.], Winkler (1W) [CEPLAC]. GUYANA: [Upper Demerara-Berbice]: Mabura Hill, camp at end of rd. from Georgetown to Letham Rd., 64m, 58°41.982′W, 5°9.313′N, 29.x.2002, J.S. LaPolla et al., 1° forest, litter sample, JSL021029-01-LS20 (1W) [USNM]; JSL021029-01-LS15 (1W) [USNM]; same except JSL021029-01-LS08 (1Q) [USNM]; Upper Takutu-Upper Essequibo: Acarai Mts., nr. Romeo′s Camp, 273m, 58°56.761′W, 1°23.122′N, 10.x.2006, T.R. Schultz & J. Sosa-Calvo, 1° forest swamp, leaf litter, Winkler sample, JSC061010-LS08 (3W) [USNM]; same except 263m, 58°56.772′W, 1°23.136′N, JSC061010-LS07 (1W) [USNM]; 268m, 58°56.799′W, 1°23.216′N, JSC061010-LS01 (2W 1Q) [USNM]; 314m, 58°56.787′W, 1°23.137′N, JSC061010-LS06 (1W) [USNM]; 293m, 58°56.804′W, 1°23.171′N, JSC061010-LS04 (2W 1Q) [USNM]; 303m, 58°56.808′W, 1°23.191′N, JSC061010-LS03 (2W 1Q) [USNM]; 280m, 58°56.806′W, 1°23.193′N, JSC061010-LS02 (1W) [USNM]. PERU: Cusco: Estac. Biol. Villa Carmen, trail 12, 800m, 12.869.043, -71.407.11 + 300m, 8.viii.2013, M.A. Ulysséa col., rainforest, [nest in] rotten log (3Q 7W) [MZSP]; same data (14W) (MZHY101) [MZSP]; same data (2W) (MZHY180, MZHY2015) [MZSP]; same except 5–15.viii.2013, Ant Course 2013 (1W) [MZSP]; same data (3W) [DZUP]; Loreto: Ramón Castillo, 5km NW Letícia, 23Feb1972, S. & J. Peck, forest, litter, berlesete, 231 (7Q 23W, one worker covered with gold) [MZSP]; same data (18W 2Q) [MCZC]; Madre de Dios: 202m, 32.34k SW Puerto Maldonado, 12°49′36.9″S, 69°22′16.9″W, 28.vii.2012, W. & E. Mackay, mini-Winkler litter extraction, Tropical rain forest, tierra firme, reddishbrn clay, #25167 (1W) [UTEP]; same data (1W covered with gold) (MZSP67435) [MZSP]; same except #25168 (1W 1Q) [UTLP]; #25168 (1W 1Q) [MZSP]; #25170 (1W) [MZSP]; 230m, 26.vii.2012, #25137 (1W) [MZSP]; Los Amigos Field Station, Trail 6, 277m, 70°6′3.1W, 12°34′8.4S, 6.x.2004, T.R. Schultz, C. Marshall & J. Sosa-Calvo, 1° forest, litter sample, =JSC041006-16, TRS041006-01-LS-16 (2W) [USNM]; Inkaterra, Reserva Amazónica, 11.vii.2012, 19L 0494117-19L 0494099, 8614232-8614050, B.M. Jimenez col., B/GW8S (4W) [UNMSM]; same except 8.vii.2012, 19L 0494901-19L 0494572, 8614342-8613832, AW2 seca (3W) [MZSP]; AW14S (3W) [UNMSM]; 5.vii.2015, 19L 0494646-19L 0494557, 8614458-8614648, DW14S (4W) [MZSP]; Reserva Nacional Tambopata, Sachavacayoc, 210m, 12°51’21″S, 69°21’43″W, 19–31.vii.2010, J. Chaul col., Neotropical Ant Course (1W) [MZSP]; Tambopata, 15km NE Puerto Maldonado, Cuzco Amazonica, 200m, 20.vi.89, S.P. Cover & J.E. Tobin cols, CA-483, camp. sifted litter from compost pile by trail to zone I (3W) [MCZC]. SURINAME: Sipaliwini: Nassau Mts., 514m, 54°36.24.3W, 4°49′1.9N, 3.xi.2005, J. Sosa-Calvo & R. Badal, 1° forest, litter sample, tall forest, high leaf litter decomposition, JSC051103-01-LS11 (1W) [USNM]; same except JSC051103-01-LS19 (1W) [USNM]; JSC051103-01-LS10 (1W) [USNM]; JSC051103-01-LS18 (1W) [USNM]; JSC051103-01-LS13 (1W) [USNM]; JSC051103-01-LS09 (1Q) [USNM]. [ TRINIDAD AND TOBAGO]: TRINIDAD: [Arima]: Arima Valley, Windblow Ridge, 1800′, 5.15.88, Cover, Moffett, T-44, secondary forest, rotten stick (4W) [MCZC]; [Couva-Tabaquite-Talaro]: Arena Forest, mid Barker Trace, 5 Nov 2003, Wetterer, #239 (1W) [MCZC]; N Balata Branch, 31 Oct 2003, Wetterer, #218 (1W) [MCZC];Arena & Brazil Rds, 5 Nov 2003, Wetterer, #241 (1W) [MCZC]; W Racoon Ride, 31 Oct 2003, Wetterer, #216 (1W) [MCZC]; 0.6km ESE HQ, 9 July 2004, J.K. Wetterer, #478 (1W) [MCZC]; [Princes Town/Rio Calro-Mayaro]: Victoria-Mayaro Res., 2km N gate, 3 Nov 2003, Wetterer, #235 (1Q) [MCZC]; [Rio Claro-Mayaro]: 17km SE Rio Claro, 28 July 2004, J.K. Wetterer, #533 (1Q) [MCZC]; [Rio Claro-Mayaro/Sangre Gandre]: Nariva Swamp, 23.iv.35, N.A. Weber, 140 (6W) [MCZC]; [San Juan-Laventille]: North Cost Rd., 4km from Saddle, 22 Nov 2003, Wetterer, #249 (1W 1Q) [MCZC]; 3km N Saddle, 2 Nov 2003, Wetterer, #226 (1Q) [MCZC]; [Sangre Grande]: Tamana nr cave, 12 July 2004, J.K. Wetterer, #505 (1Q) [MCZC]; [Tunapuna-Piarco]: Blanchisseuse Rd., 2km N Asa Wright, 30 Oct 2003, Wetterer, #212 (1W) [MCZC]; La Veronica, 5.7km up road, 19 June 2004, J.K. Wetterer, #452 (1W) [MCZC]. VENEZUELA: Amazonas: Rio Mavaca Cam, 65°06′W, 02°02′N, 16–27.iii.89, Phipps-FUDECI Exped. by Amer. Mus. Nat. Hist., D.A. Grimaldi col. (1W) [MCZC]; Tachira: Las Cuevas, 44km WNW Sn. Cristobal, 7°48′N, 71°46′W, 500m, 29.viii.1988, col. J. Lattke, hojarasca tamizada (1W) [MIZA]; Uribante-Caparo, 1217 (4W) [MIZA]; Media Libra, Rio Negro Rd past Puente Santa Elena, 600–630m, 10 Dec. 1985, J. Latke & W.L. Brown (1W) [MIZA]; Aragua: P.N.H. Pittier, Valle Sta. María, 3.8km SSW Cumboto, 615m, 10°22′N, 67°49′W, 31.viii.2003, E. Rodríguez, A. Grotto & J. Lattke, Fila El Viento, Bosque Seco, Ex hojarasca, 2803 (1W) (MIZA0021688 MZHY220) [MZSP]; same except 2797 (1W) (MIZA0021690) [MIZA]; 2799 (1W) (MIZA0021692 MZHY198) [MZSP]; 2802 (2Q 1W, worker covered with gold) (MIZA0021687, MIZA0021691, MIZA0021689) [MIZA]; BA[Barinas]: 17km SW Cdad Bolivia, 240m, 8°04′N, 70°48′W, 27.viii.87, J. Lattke, 1162 (2W) [MIZA]; Sucre: 7km S. El Pilar, <10m, 29.vii.1987, S. & J. Peck, hojarasca tamizada (2W 1Q) (MIZA0021679, MIZA0021683) [MIZA]; Zulia: El Tucuco, 51km SO de Machiques, 420m, 8.ix.1984, J. Lattke leg., em hojarasca (1Q) (MIZA0021693) [MIZA].

Figures

FIGURE 24. Worker of Hylomyrma blandiens (MIZA0021679). A) frontal view; B) dorsal view; C) lateral view. Photos by Ricardo Kawada.

FIGURE 25. Queen of Hylomyrma blandiens (MIZA0021683). A) frontal view; B) dorsal view; C) lateral view. Photos by M.A. Ulysséa.

FIGURE 26. Male of Hylomyrma blandiens (USNMENT00537690). A) frontal view; B) dorsal view; C) lateral view. Photos by Ricardo Kawada.

FIGURE 80. Types of setae found in the species of Hylomyrma. Unbranched setae: A) Hylomyrma adelae, H. blandiens, H. macielae; B) H. immanis; C) H. marielleae. Branched setae: D) H. dentiloba, H. lispectorae, H. mitiae, H. peetersi, H. virginiae; E) H. balzani, H. lopesi; F) H. blandiens, H. jeronimae, H. versuta; G) H. dolichops; H) H. transversa; I) H. longiscapa; J) H. balzani, H. lopesi, H. primavesi, H. reitteri, H. versuta; K) H. plumosa.

FIGURE 82. Male’s wings. A) Hylomyrma balzani (MZSP67323); B) H. reitteri [MZSP 67431], C) H. versuta (MEXICO: VeraCr.: Pueblo Nuevo, nr. Tetzonapa, Aug. 14-53, E.O. Wilson, #221, rain forest [MCZC]); D) H. longiscapa (MZSP67353); E) H. immanis (MZSP67334]); F) H. blandiens (USNMENT00537690). Venation: costa (C), radial (R), radial sector (Rs), media (M), cubitus (Cu), anal (A), radial-subcosta (R+Sc), media-cubitus (M+Cu), cubitus-anal crossvein (cu-a), first mediacubitus crossvein (1m-cu), radial sector-media 1 (Rs+M1), second radial-radial sector crossvein (2r-rs), radial-subcosta (R+Sc), media-first radial sector-media (M+1rs-m), submarginal 1+2 (2rs-m). Cells: basal (B), sub-basal (BS), discal (D), sub-marginal 1 (SM1), marginal (M), sub-marginal 2 (SM2).

FIGURE 84. Distribution records of Hylomyrma balzani, H. blandiens, H. jeronimae, and H. lispectorae.

FIGURE 86. Distribution records of Hylomyrma dentiloba, H. macielae, H. reginae, H. villemantae, and H. wachiperi.