Calycomyza rolandrae, Monteiro & Esposito, 2017

Monteiro, Nilton Juvencio Santiago & Esposito, Maria Cristina, 2017, New species and new records of Calycomyza Hendel (Diptera: Agromyzidae) in Brazil, Zootaxa 4338 (3) : -

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Calycomyza rolandrae

sp. nov.

Calycomyza rolandrae sp. nov.

Fig. 1–11 View FIGURES 1 – 5 View FIGURES 6 – 11

Description. Wing length 2mm in male and 2.1mm in female. Penultimate section of CuA1 0.57 times the length of the last section; transversal vein r-m situated at middle level of the discal cell. Gena-to-eye ratio 0.14. Acrostichal setae in six rows; dorsocentral setae 0+3 (anterior only a little longer than acrostichals).

Coloration. Ocellar triangle brown; fronto-orbital plate grayish to lower orbital seta, distinctly yellow below; face grayish; frons grayish in upper half, distinctly yellow below; escape brown; pedicel predominantly brown, yellow in basal border; first flagellomere predominantly brown, yellow apically; palpus brown; gena yellow. Mesonotum brown; notopleuron yellow; anepisternum brown with border yellow; anepimeron brown with border yellow; legs brown with apex of femur and base of tibia yellow in the fore leg. Calypter grayish; fringe pale brown. Halteres white.

Male genitalia ( Fig. 1 View FIGURES 1 – 5 to 5). Epandrium with 10 to 15 spines at hind corner; surstylus subtriangular with 9 to 12 spines and some slender setae apically; hypandrium V-shaped, without apodeme; basiphallus membranous; mesophallus slender with two plate-like extensions basally and distal end bent ventrally in lateral view; distiphallus conic with two medial processes long, fused and about the same length as the distiphallus; ejaculatory apodeme short, enlarged apically.

Female genitalia ( Fig. 6 View FIGURES 6 – 11 to 10). Ninth abdominal sternite V-shaped, wider apically and with many small sensilla; three pairs of marginal setae equidistant from each other, the apical pair of marginal setae twice the length of the others; ninth abdominal tergite slender, ending before the apex of the ninth abdominal sternite and with a pair of long setae apically; cercus oval with four tactile sensilla; spermatheca rounded with spermatic duct widely in apex; eggs guide subtriangular; ventral receptacle T-shaped.

Host-plants. Rolandra fruticosa (L.) Kuntze ( Asteraceae ). Larvae forming blotch-like mines on the adaxial leaf surface ( Fig. 11 View FIGURES 6 – 11 ).

Type material. Holotype BRAZIL, Pará, Belém: ♂, Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), 1º26’06.4’’S, 48º26’58.1’’W, 25-IV-94, mining leaves of Rolandra fruticosa, M.C. Esposito [collector] GoogleMaps . Paratypes: BRAZIL, Pará, Belém: ♂, Universidade Federal Rural da Amazônia ( UFRA), 1º27’13.8’’S, 48º26’43.8’’W, 14-I-94, M.C. Esposito [collector] GoogleMaps ; 2 ♂, same location as holotype, 25-II-94, M.C. Esposito [collector] GoogleMaps ; 2 ♀, same location as holotype, 18-III-94, M.C. Esposito [collector] GoogleMaps ; 2 ♀, same location as holotype, 25-II-94, M.C. Esposito [collector]. GoogleMaps

Etymology. The specific epithet is based in the host-plant genus ( Rolandra Rottb. ).

Distribution. Brazil (Pará).

Remarks. The male genitalia of Calycomyza rolandrae sp. nov. is similar to male genitalia of Calycomyza michiganensis Steyskal and Calycomyza chilena Spencer , but C. rolandrae sp. nov. is distinguishable by the mesophallus curving downward apically and the projections of the distiphallus. Only Melanagromyza compositoides Spencer is known to mine leaves of Rolandra ( Benavent-Corai et al. 2005) , being C. rolandrae sp. nov. the first species of Calycomyza mining Rolandra species.