NEEOTROPICAL MIRIDAE, CLIV: BICURVICORIS, HYALOPSALLUS and NIGRIMIRIS, NEW GENERA of PHYINI (Hemiptera)'
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Rev. Brasil. Biol., 33 (Supl.) 1973 - Rio de Janeiro, GB NEEOTROPICAL MIRIDAE, CLIV: BICURVICORIS, HYALOPSALLUS AND NIGRIMIRIS, NEW GENERA OF PHYINI (Hemiptera)' JOSE C. M. CARVALI10 * and J. C. SCHAFFNER ** Museu Nacional, Rio de Janeiro and Department of Entomology, Texas A & M University, Texas, USA. (With 11 text figures) The subfamily Phylinae is best repre- med by long fine, erect hairs on hemelytra sented in the Western Hemisphere in the and long setiform, pale hairs on head, pro- Nearctic Region with the number of ge- notum and outer margin of embolium. nera and species diminishing in the tro- Head strongly inclined; eyes slightly pical areas. Current studies of the Miridae removed from pronotum, reaching ventrally occurring in the Neotropics have revealed to slightly below antennal socket; vertex an undescribed monotypic genus in Mexico, convex, not margined; frons strongly in- another in the Dominican Republic and the clined, rounded in front; clypeus prominent, third in Brazil; these genera are described compressed, with a few characteristic here. The illustrations accompanying the elongate flattened erect black hairs visible descriptions of these forms were prepared from above; jugum and lorum normal; by Mr. Paulo Wallerstein under the direction buccula and gena prominent; gula reduced; of Dr. J.C.M. Carvalho. rostrum reaching apex of hind coxae; segment I thickest, reaching to about Bicurvicoris n. gen. anterior 1/3 of prosternum; antenna rela- Phylinae, Phylini. Characterized by tively short; segment I shorter than width being small in size; body smooth, compact; of vertex, cylindrical, tapering at extreme covered by a single type of pubescence, for- base, thicker than II; II cylindrical, slightly incrassate towards apex; III and IV more slender than II; all segments covered by 1 Received for publication June 6, 1973. short dense semierect or decumbent pubes- * Pesquisador-conferencista do Conselho Na- cence, the hairs shorter than the diameter cional de Pesquisas, Brasil. NSF Senior Foreign of segment. Scientist Fellow, Texas A & M University, 1972. Pronotum trapezoidal; strongly inclined ** Associate Professor. anteriorly; calli obsolete; anterior margin Technical contribution No. TA-10524, Depart- ment of Entomology, Texas Agricultural Experiment concave; lateral margins angulate poste- Station, Texas A & M University, College Station, riorly; anterior angles with two or three Texas 77843. long erect flattened bristles; posterior 18 JOSk C. M. CARVALHO and J. C. SCHAFFNER margin slightly sinuate medially; posterior margin and apical portion of lower margin; angles noticeably rounded; mesoscutum extreme base of tibiae with black spot and broadly exposed; scutellum slightly convex; upper margin with slender black fascia; hemelytra somewhat hyaline especially on apices of tarsi and apex of rostrum fuscous. exocorium; embolium flat and widened Morphological characteristics as given towards apex, basal external portion with for genus. several long flattened hairs; cuneus about as long as wide at base, cuneal fracture angu- Genitalia: Theca with a characteristic late, sinuate medially; membrane very cha- sclerotized subapical dentation; penis with racteristically biareolate beginning with deep terminal portion simple, filamentous notch beyond apex of cuneus followed by (Fig. 2). Left paramere (Fig. 3) excavated two convexities and two concavities. Under- ventrally with characteristic branches with side with hind femora more developed than apices recurved. Right paramere small, others; claws sharply curved; pesudarolia simple. present, small. FEMALE: Length, 2.60 mm; width, TYPES SPECIES OF GENUs, BicURVICORIS 1.22 mm. Head length, 0.22 mm; width NIGROLINEATUS n. sp. through eyes, 0.56 mm; vertex width, Bicurvicoris is easily recognized by its 0.34 mm. Length of antennal segment I, characteristic membrane, the black bristles 0.22 num; II, 0.70 mm; III, 0.42 mm; IV, on the clypeus (male), and the erect 0.24 mm. Pronotal length, 0.40 mm; width, flattened bristles on the anterior angles of 0.94 mm. Cuneal length, 0.38 mm; width, the pronotum (female). This genus resem- 0.38 mm. bles Microphyllelus Reuter and Macrotylus Fieber, from which it can be readily dis- Similar to male in color. tinguished by the pubescence and the cha- racteristic form of the membrane. HOLOTYPE: female, 1 mile northwest of Ayutla, Queretaro, Mexico, July 24, 1970, taken at light, Murray, Phelps, Hart, Bicurvicoris nigrolineatus n. sp. Schaffner. Deposited in the National Museum of Natural History, Washington, (Figs. 1-3) D.C. ALLOTYPE: male, 8 miles west of El Characterized by the color, dimensions and structure of the male genitalia. MALE: Length, 2.64 mm; width, 1.20 mm. Head length, 0.22 mm; head width through eyes, 0.56 mm; vertex width, 0.34 mm. Length of antennal segment I, 0.22 mm; II, 0.70- mm; III 0.40 mm; IV, 0.26 mm. Pronotal- length, 0.36 mm; width, 0.94 nun. Cuneal length, 0.38 mm; width, 0.38 mm. Color pale yellow to citrine; eyes, ex- ternal fascia on segment I, segments II-IV and bristles of clypeus black; membrane with two fascia, one running from each marginal convexity. Legs citrine, femora Bicurvicoris nigrolineatus n. sp. Fig. 1 - male. holotype; fig. 2 - outer theca and apex of vesica; with longitudinal black fascia along upper fig. 3 - left paramere. NEOTROPICAL MIRIDAE, CLIV: BICURVICORIS 19 Limon, Tamaulipas, Mexico, July 20, 1970, spots at base of dark spines; claws broadly taken at light, Murray, Phelps, Hart, curved; pseudarolia present, small. Schaffner. Deposited in the National TYPE. SPEcIs, Hyalopsallus diaphanus Museum of Natural History. (Reuter) This genus shows affinities with Para- ragmus Poppius which occurs in the Hyalopsallus n. gen. Paleartic and Oriental Regions but can be distinguished from it by having the vertex Phylinae, Phylini. Characterized by the and the sides of the pronotum not margined hyaline, completely transparent hemelytra; and the hemelytra being completely trans- single tipe of pubescence; and short pseu- parent. The completely transparent heme- darolia. lytra will also separate it from Atomoscelis Head strongly curved downward, Reuter. smooth; eyes at posterior margin of head slightly removed from pronotum, ventrally reaching below antennal socket; vertex Hyalopsallus diaphanus (Reuter, 1907) slightly convex, neither margined nor n. comb. carinate, with erect light hairs; frons (Figs. 4-7) strongly inclined, rounded in front bearing semierect light hairs; clypeus prominent, Atomoscelis diaphanus Reuter, Ofv. not visible from above, somewhat com- F. Vet. Soc. Forth. 49(5): 24; pressed laterally, bearing a few dark ibid, Van Duzee, Bul. Buf. Soc. semierect hairs; jugum and lorum normal; Nat. Sci. 8(5): 28 (note). buccula small; gena normal; rostrum reaching middle coxae, segment I thickest, Characterized by the color, dimensions reaching to about anterior 1/3 of proster- and structure of the male genitalia. num; segment II longest, III shortest; MALE (measurements taken from 20 antennal segment I about 1/2 as long as specimens; the average given first followed vertex width, thickened apically; segment II cylindrical, slightly incrassate towards apex, longest; III and IV more slender than II; all segments covered with short decum- bent pubescence, segment I also with 2 or 3 long, dark, erect bristles. Pronotum trapezoidal, only slightly inclined anteriorly, smooth; calli obsolete; anterior margin concave; lateral margins rounded; posterior margin concave, vestiture consisting of light semierect hairs inter- spersed with semierect setiform hairs (pale under incident light, dark otherwise); mesoscutum broadly exposed; scutellum slightly convex, vestiture as on pronotum; hemelytra minutely punctate; embolium flat, widened towards apex; cuneus slightly longer than wide. Hind femora more deve- Hyalopsallus diaphanus (Reuter). Fig. 4 - male; loped than others; fig. 5 - penis (excluding outer theca); fig. 6 - bases of tibiae with dark left paramere; fig. 7 - right paramere. 20 JOS.t C. M. CARVALHO and J. C. SCHAFFNER in parentheses by the ranges): Length, 1.18-1.40 mm). Head length, 0.22 mm 2.95 mm (2.80-3.10 mm); width, 1.21 mm (0.19 mm, 0.14-0.24 mm); head width (1.16-1.26 mm). Head length, 0.19 mm through eyes, 0.74 mm (0.69 mm, 0.64-0.74); (0.16-0.24 mm); head width through eyes, vertex width, 0.42 mm (0.40 mm, 0.38- 0.69 mm (0.66-0.72 mm); vertex width, 0.42 mm). Length of antennal segment I, 0.37 mm (0.36-0.40 mm). Length of antennal 0.22 mm (0.19 mm, 0.16-0.22 mm); II, segment I, 0.19 mm (0.18-0.20 mm); II, 0.82 mm (0.74 mm, 0.68-0.82 mm); III, 0.80 mm (0.74-0.88 mm); III, 0.62 mm 0.64 mm (0.60 mm, 0.54-0.66 mm); IV, (0.58-0.68 mm); IV, 0.41 mm (0.38-0.44 mm). 0.42 mm (0.40 mm, 0.34-0.48 mm). Pronotal Pronotal length, 0.41 mm (0.40-0.44 mm); length, 0.48 mm (0.42 mm, 0.38-0.46 mm); width, 1.00 mm (0.96-1.04 mm). Cuneal width, 1.16 mm (1.04 mm, 0.90-1.10 mm). length, 0.45 mm (0.42-0.50 mm); width, Cuneal length, 0.56 mm (0.46 mm, 0.40- 0.38 mm (0.34-0.42 mm). 0.50 mm); width, 0.48 mm (0.40 mm, 0.36- General coloration pale yellow to 0.44 mm). yellowish green; head, antennae, pleural Similar to male in color and structure, regions of thorax, legs, pale yellow; prono- antennal segment II less incrassate. tum, scutellum, at least on apical half, and Material examined: holotype, female, abdomen greenish yellow; hemelytra com- Mandev'le Ja., Apr., 06, Van Duzee pletely transparent; first antennal segment Collector. In the collection of the California with pale fuscous bar ventrally near base Academy of Sciences; loaned through the and dark fuscous spot ventrally near apex, courtesy of Dr.