Lopesia spinosa Maia, 2004

Urso-Guimarães, Maria V., 2019, Description of the larva of Lopesia spinosa Maia (Diptera, Cecidomyiidae) and new occurrences of the species, Revista Brasileira de Entomologia 63 (3), pp. 232-233 : 232-233

Lopesia spinosa Maia, 2004

Description – Third Instar Larva ( Fig. 1A–C )

Body length: 2.00– 2.06 mm long (n = 5). Fusiform and cylindrical body; integument rough with micro-spines. Cephalic and thoracic region ( Fig. 1A ): Antenna short; spatula replaced by two evident sclerotized semicircles ( Fig. 1B ) in the three thoracic segments (n = 5), two groups of three lateral papillae on each side of spatula, three pairs setose in each group. Terminal segment round with four pairs of terminal papillae ( Fig. 1C ): three pairs corniform, and one setose, anus ventral in shaft.

Examined material

BRAZIL, São Paulo State: Altinópolis, Touristic Complex of Itambé (21 ◦ 04 l 02.7 llS 47 ◦ 26 l 12.3 llW, new record). Collection date, 15.iii.2000 – Slide mounted: 1 male – Emergency date, 20.iii.2000; 4 females – Emergency date, 21.iii.2000; 1 female – Emergency date, 22.iii.2000; 5 exuviae and 5 larvae. In vials: 1 female – Emergency date, 15.iii.2000; 7 females – Emergency date, 16.iii.2000; 18 females – Emergency date, 20.iii.2000; 13 females – Emergency date, 21.iii.2000; 46 exuviae; 4 pupae.Urso- Guimarães, M.V.; Balbi, M.I.P.A. & Mendes, H.F. col. Additional material: BRAZIL, São Paulo State: Jundiaí, Serra do Japi Reserve (23 ◦ 39 l 58.8 llS, 46 ◦ 53 l 08.7 llW, new record): Slide mounted: Collection date, 08.ii.2011 – 1 male – Emergency date, 10.ii.2011; 1 male – Emergency date, 13.ii.2011; 1 female – Emergency date, 10.ii.2011; 1 female – Emergency date, 11.ii.2011; 1 female – Emergency date, 13.ii.2011; 1 exuvia. Gomes, G. C. col. BRAZIL, Minas Gerais State: Delfinópolis (20 ◦ 12 l 44.4 llS, 46 ◦ 55 l 15.1 llW, new record): Collection date, 29.vi.2000. Galls. Urso-Guimarães, M.V.; Bonifácio-Silva, A.C. & Scareli-Santos, C. col.

Remarks of the larvae of Lopesia spinosa

The larvae of Lopesia species are characterized by short terminal setae, most of which are corniform and in a terminal projection ( Gagné and Marohasy, 1993; Gagné, 1994). The Lopesia species presents a variation in the number of teeth of the spatula, sometimes with reduction of the number of teeth or lacking of the spatula. The cases of reduction of spatula are L. aldinae with one tooth and L. niloticae , L. armata , L. quadrata , and L. singularis which spatula is lacking. The larva of L.spinosa has two sclerotized semicircles replacing the spatula in the three thoracic segments, a unique case in Lopesia . The terminal segment of L. spinosa is round and presents four terminal papillae, three corniform of equal size and one setiform longer then the corniform. The other species with terminal segment round and unequal length of terminal papillae are L. erythroxyli , L. licaniae , and L. niloticae ( Rodrigues and Maia, 2010) , but in L. niloticae the spatula is lack and the terminal segment has reentrancy and in L. erythroxyli and L. licaniae the spatula has two teeth and a long shaft.

Updated geographical distribution of Lopesia spinosa

Once the galls and specimens of the Lopesia spinosa were sampled in Altinópolis, São Paulo State ( Neves et al., 2019), and additional material was sampled in Serra do Japi Reserve in São Paulo State ( Gomes et al., 2013) and Delfinópolis in Minas Gerais State ( Urso-Guimarães et al., 2003), the geographical distribution is herein extended from Tiradentes, Minas Gerais State ( Maia and Fernandes, 2004) to these localities. As the host plant species is widely distributed in Brazil (Alagoas, Bahia, Ceará, Paraíba, Pernambuco, Distrito Federal, Mato Grosso, Mato Grosso do Sul, Espírito Santo, Minas Gerais, Rio de Janeiro, São Paulo, and Paraná) and Paraguay (Guadalupe) ( Dos Santos et al., 2017), it is also expected that Lopesia spinosa occurs in other regions where the plant is distributed.Further investigation is needed to confirm this hypothesis.

Figures

Fig. 1. Larva of Lopesia spinosa. A. Cephalic and thoracic region, ventral view. B. Detail of the semicircular spatula and lateral papillae. C. Terminal segment, dorsal view.