Psyllobora picta ( Germain, 1854 )

González, Guillermo & Almeida, Lúcia M., 2017, Psyllobora picta (Germain) species complex (Coleoptera: Coccinellidae), with descriptions of two new species from Chile, Revista Brasileira de Entomologia 61 (4), pp. 330-338 : 335-336

Psyllobora picta ( Germain, 1854)

( Figs. 25–37, 50 )

Coccinella picta Germain, 1854:335 ; Philippi, 1887:173.

Psyllobora picta : Brèthes, 1923:454; Costa Lima, 1937:32; Blackwelder, 1945:455; Mader, 1957:54; González, 2008:95, 2013:52, 2014:530; Serra et al., 2013:238.

Psyllobora feralis Mulsant, 1866:178 , Crotch, 1874:142; Weise, 1904:195; Gordon, 1987:17 as synonym of P. picta ).

Psyllobora picta a. feralis : Blackwelder, 1945:455.

Halyzia femoralis: Philippi, 1887:174 (transcription error “feralis ”).

Male genitalia: Tegmen 4.3 times longer than wide on average, phallobase subrectangular, 1.1 times longer than wide and with somewhat rounded posterior border. Terminal strut 2/5 of phallobase length. In dorsal view, penis guide with almost parallel sides in basal half, then sinuous and reduced to 3/5 width in distal third, with membranous semicircular lateral expansions, apical 1/6 triangular with concave sides and slight apical projection; in lateral view with yellowish ventral projections, semicircular and with very wide border, twice width of paramere, in 1/3 distal apex curving toward parameres. Parameres narrow in dorsal view and slightly curved toward penis guide, 1/5 shorter than penis guide, distal half with long pubescence, which exceeds paramere by almost half its length ( Figs. 36–38). Penis wide, about 1/6 of maximum length, basal half semicircular, slightly curved until 2/3 of length, distal 1/3 straight. Apex comprising 1/6 of length and slightly wider than penis tube, separated in strongly acute angle, with ejaculatory duct “S” shaped and sclerose spine at apex; penis capsule, internal branch hook-shaped, outer branch twice as wide as internal branch, basal margin sometimes slightly convex, with notched center ( Fig. 35).

Female: Similar to male. Spermatheca “C” shaped, about eight times longer than wide, lateral nodulus quite short, ramus 1/6 of total length, seminal duct very short, infundibulum irregularly anchor-shaped, half size of spermatheca ( Fig. 39). Coxites paddle-shaped, with very wide apex and evident hair stylus.

Variation: Length 2.2–3.1 mm. Dorsal color of live specimens bright white with black spots ( Fig.34), but some specimens with the dorsal color ivory yellow and dark-brown spots. Spots of the head are always present, sometimes joined. Pronotal spots on the same side are sometimes fused in oblique stripes, both stripes sometimes joined at the base; some specimens have additional spots on the pronotum border, together or separate. Elytral spots are variable, with spot 4 and sometimes spot 8 forming a common spot with its counterpart on the other elytra, or slightly separated and touching the suture, spots 1–3 normally attached, others sometimes slightly touching, and apical spot 10 is always well formed ( Figs. 26, 31–34). Ventral surface of metaventrite is usually black, and sometimes pro-, mesosterno-, and part of abdomen black. Femurs clear or in some specimens have black rings covering the middle area ( Fig. 30).

Distribution: Southern Argentina (Neuquén and Río Negro provinces) and Chile (San Antonio to Llanquihue provinces) ( Fig. 53 ). The report of this species presence in Paraguay ( González,

2013) should be discarded, since it comes from a citation of Bertoni (1925) that probably referred to P. bicongregata , at that time considered a synonym of P. picta . For the same reason, it is likely not present in Uruguay, where it was cited by Ruffinelli and Carbonell (1954). The presence of the species in Argentina is based on a single citation of P. feralis Weise (1904) in Neuquén and one female from El Bolsón, Río Negro Province, so its presence should be confirmed by examination of male specimens.

Type material examined: Holotype: “ Chile ” “ Holotipo ” “ Coccinella picta Germain ” “M.N./H.N./Tipo N ◦ 2162” [ MHNS].

Dissected Material examined (11 ♂ and 12 ♀): 1 ♂ and 1 ♀: “ Chile, Prov. San/Antonio, Algarrobo / 16-enero-1989 /leg. G. González ” [ CPGG] . 2 ♂ and 1 ♀: “[ Chile] Maullín a/ Las Quemas / Llanquihue /17, - dic. 1972 /Coll: L.E. Peña ” [ UMCE] . 2 ♂ and 1 ♀: “ Chile, Prov. Melipilla/ Pollocabe 300 msnm/ 7–29-marzo- 2004 /leg. V.M. Diéguez ” “ gen. 1648 ” [ CPMD] . 1 ♀: “[ Chile] Quillota/7 1894” “Colección/P. Germain ” “ Psyllobora / picta /( Germain )/ Mader det.” “ gen. 1649 ” [ MHNS] . 1 ♂: same data except “ gen. 1650 ” [ MHNS] . 1 ♂ and 1 ♀: “Contulmo/ Arauco /IX-Reg-Chile/ 10-I-1988 ” [ CPGG] . 1 ♂ and 1 ♀: “[ Chile] S. Isidro XII” “ Colección Philippi ” “ Gen 1654 ” [ MHNS] . 1 ♀: “ Chile X-R/ Valdivia / San José de la/ Mariquina / 2- 2-1985 /Coll: C. Fierro ” “ Gen 1658 ” [ CPAL] . 1 ♀: “ Chile – R.M./ Chacabuco / Chacabuco / 15-II-2008 /Coll: A. Lüer ” “ Gen 1659 ” [ CPAL] . 1 ♂: same data except “ 12-XI-2007 ” [ CPAL] . 1 ♀: “ Argentina, Rio Negro / El Bolsón /41,939242 ◦ S 71,544 006 ◦ W/ Febrero 2002 / Leg. P. Sackman ” (ab) [ MHNS] ; 1 ♀: “ marzo 2007 /P.N. La Campana/V Región/ Chile Coll: R. Honour S” “Hembra 187” [ CPRH] ; 2 ♀: “ 23-IV-1993 /Cuesta Barriga/Padre Hurtado R.M./ Chile Coll: R. Honour S” “ Hembra 139” and “ Hembra 145 [ CPRH]; 2 ♂: same data except “macho 140” and “macho 144” [ CPRH] .

Other material examined (101 specimens): Chile: without data, coll. P. Germain, 2 specimens [ MHNS]; Bio-Bio: Trapa-Trapa, 16-12-1996, coll. A Lüer, 1 specimen [ CPAL]; Cachapoal: Pencahue, 24-10-1991, coll. A Lüer, 1 specimen [ CPAL]; Ladera S. Cerro Llivi- Llivi, 1-9-2012, leg. A Lüer, 1 specimen [ CPAL]; Cautín: Villarica, 12-II-1964, T. Cekalovic, 41 specimens [ DZUP]; Temuco, III-1922, D.S. Bullock, 1 specimen [ MNRJ]; Caburga, 16-2-2008, coll. A Lüer, 2 specimens [ CPAL]; Lican-Ray, I-1982, G. González F. 1 specimen [ CPGG]; Curacautín, Lag. Conguillio, 6-I-1979, leg. D. Jackson, 1 specimen [ CPGG]; Chacabuco: Chacabuco, El Roble, 6-III-2011, leg. A Lüer, 1 specimen [ CPAL]; Choapa: Limahuida, 17-X-2009, leg. A Lüer, 1 specimen [ CPAL]; Cordillera: San José de Maipo, Lagunillas, 2100m, leg. R. Honour S, 1 specimen [ CPRH]; Curicó: Cerro Hueca- Huecan, Zapallar, 15 km E Curicó, 12 a 21-XII-1997, Malaise trap, leg. J.E. Barriga, 1 specimen [ JEBC]; 15 km E. Potrero Grande , 29- I-1995, leg. J.E. Barriga, 1 specimen [ JEBC]; Llanquihue : Todos los Santos, Cayutue, 6-III-(19)50, coll. Kuschel, 2 specimens [ MHNS]; Fresia, 6-I-(19)45, coll. Kuschel, Ribes nigrum , 1 specimen [ MHNS]; Malleco : Conguillio, 3-II-1983, E. Krahner, 1 specimen [ MHNS]; El Manzanar, Lonquimay, IV-1988, leg. J.E. Barriga, 1 specimen [ JEBC]; Lonquimay, 12-I-2008, fogging s/ Nothofagus dombeyi, leg. J.E. Barriga, 1 specimen [ JEBC]: Pemehue, Selva Oscura, 22-12-1996, coll. A Lüer, 1 specimen [ CPAL]; Victoria, Fdo. Las Mariposas, 18- 10-1995, coll. A Lüer, 2 specimens [ CPAL]: Melipilla: Melipilla, C ◦ Cantillana, 2-8-1998, leg. A Lüer, 1 specimen [ CPAL]; Chiñihue, 21- II-2007, leg. A Lüer, 1 specimen [ CPAL]; Quillota: 3-XI-1963, M. Cerda, 1 specimen [ MNRJ]; Ñuble: San Fabián, 21-11-1994, Coll. A Lüer, 1 specimen [ CPAL]; Chillán, Las Comadres, 6-I-1996, coll. S. Roitman, 2 specimens [ CPGG]; Los Lleuques, 12-12-2008, leg. A Lüer, 1 specimen [ CPAL]; Las Trancas, 11 a 16-II-2011, leg. R. Honour S, 1 specimen [ CPRH]; Petorca : La Canela, 20-dic-2008, leg. A Lüer, 1 specimen [ CPAL]; Quillota: Quillota, 7-1894, Colección P. Germain, 1 specimen [ MHNS]; P.N. La Campana, marzo 2007, Coll: R.Honour S. 1 specimen [ CPRH]; San Antonio: Algarrobo. 16-II-1969, G. González F, 6 specimens [ CPGG]; Santiago: Vallecito, 19-2-2011, leg. A Lüer, 1 specimen [ CPAL]; Quebrada Macul, 4-VIII, J-C. Sáez, 1 specimen [ JEBC]; Renca, IV-1964, leg. L.E. Peña, 1 specimen [ JEBC]; Talagante: Chiñihue, 20-8-2009, leg. A Lüer, 1 specimen [ CPAL]; Maipú, 26-XI-2011, coll: R.Honour S, 4 specimens [ CPRH]; Talagante:/ Padre Hurtado, Cuesta Barriga, Coll: R. Honour S. 2 specimens [ CPRH]. Talca : Vilches Alto, 10-XII-1988, Trampa malaise, 1 specimen [ CPGG]; Altos de Vilches , I-1997, leg. J.E. Barriga, 1 specimen [ JEBC]; Valdivia : Puerto Pirihueico, 16-1-1998, leg. A Lüer, 1 specimen [ CPAL]; Valparaíso: 4-X-1921, 417/FCC-567, 1 specimen [ MNRJ]; Las Zorras (near Valparaiso), 25-II-1932, 3 specimens [ MNRJ]; Limache, II-1922, 418/FCC-568, 1 specimen [ DZUP]; Lo Vazquez, X-1988, leg. J.E. Barriga, 1 specimen [ JEBC] .

Discussion

Psyllobora picta is easily recognizable by its white color with well-defined black spots ( Fig. 34) (see species key). A few specimens are ivory- yellow or with dark-brown spots, somewhat similar to some specimens of P. pauline sp.nov., but retain the other characteristics of the species. Probably the color of these specimens is the result of some post-mortem processes, because they come from old collections. The populations of southern Chile have larger and more pigmented specimens, but correspond well with the species (see note under P. pauline sp.nov.).

Figures

Figs. 1–25. 1–14: Psyllobora pauline sp. nov.: 1–5: male holotype habitus (dorsal, lateral,frontal,posterior and ventral detail);6–9:variations (dorsal view); 10: male sipho; 11–13: male tegmen (dorsal, lateral and basal lobe detail); 14: female genitalia (spermatheca and infundibulum). 15–25: Psyllobora lueri n. sp.: 15–18: male holotype habitus (dorsal, lateral, frontal and posterior); 19–20: variations (dorsal view); 21: male penis; 22–24: male tegmen (dorsal, lateral and basal lobe detail). 25: female genitalia (spermatheca and infundibulum).

Fig. 53. Distribution map of Psyllobora picta species complex.