taxonID	type	description	language	source
03FD87F7C315367DFF7931D1FE5E4D00.taxon	description	(Figs. 1 – 2) Description Adults. Head: (Fig. 1 a) With circular ommatidia widely joined at the vertex. Antennae with 12 flagellomeres. Male flagellomeres with distinct necks, about half as long as nodes, except for the two apicalmost, which do not have distinct necks: circumfila composed of a continuous basal band and a partial apical band joined by two connectives, ventrally with about 20 setae with enlarged alveoli (Fig. 2 a). Female flagellomeres without necks, the two apicalmost fused: circumfila composed of basal and apical bands joined by two connectives and ventrally with about 7 – 8 setae with large alveoli (Fig. 2 b). Frons with 8 – 12 setae on each side of the midline. Palpus three-segmented, each with many setae, the first segment about 0.6 times as long as the second and 0.5 times as long as the third. Thorax: Wing length, male 1.4 – 1.5 mm (n = 5); female 1.4 mm (n = 5), with R 5 reaching C slightly anterior to wing apex (Fig. 1 b). Anepimeron with 10 – 20 setae. Apodemes: tarsal claws with basal tooth; empodia slightly longer than claws; pulvilli short. Male abdomen: Tergites I – VII rectangular, completely setulose, with a transverse row of setae on the posterior margin and scattered scales. Tergite VIII smaller than the preceding, uniformly setulose and with some setae distributed through its surface. Sternites I – VII rectangular, setulose and with setae uniformly distributed. Sclerites without an anterior pair of trichoid sensilla Terminalia (Fig. 1 c): cerci oval, separated by a deep V – shaped incision, covered by microtrichia with four to six setae on each lobe dorsally and with about three setae ventrally Hypoproct rectangular to bilobed, uniformly covered by microtrichia, with 1 apical seta on each lobe. Gonocoxites robust, setulose and covered with setae. Gonostyli subcylindrical, uniformly setulose, with numerous setae dorsally and ventrally; with apical tooth. Gonocoxal mediobasal lobes setulose, shorter than the aedeagus, with three apical papillae bearing setae. Female abdomen: Tergites I – VI rectangular, completely setulose, with a transverse row of setae on the posterior margin. Tergite VII slightly constricted beyond midlength, the posterior margin with many setae. Tergite VIII undivided longitudinally and weakly sclerotized, without setae and with anterior margin slightly indented (Fig. 1 d). Sternites I – VII rectangular, completely setulose with a transverse row of setae on the posterior margin. Sclerites without an anterior pair of trichoid sensilla. Ovipositor with cerci covered with microtrichia, with two types of setae beyond hypoproct, long and thin on the base, short and thick pegs on the apex (Fig. 2 c). Pupa: Length 1.6 – 1.8 mm (n = 4). A pair of long cephalic setae. Base of the antennae without horns or spines. Facial papillae indistinct. Prothoracic spiracle short (Fig. 2 d). Integument of abdominal tergites without spines. Third instar larva: Length 1.4 – 1.9 mm (n = 20). Head wider than long. Integument white, covered by verrucae. Spatula absent. Lateral and terminal papillae are not apparent.	en	Cornejo, Laura Gabriela, Molas, Bárbara Mariana Corró, Kuzmanich, Nicolás, Martínez, Juan José (2019): New species of Rhopalomyia and Dasineura (Diptera: Cecidomyiidae) associated with Prosopis caldenia Burkart (Fabaceae) in Argentina. Zootaxa 4691 (2): 161-170, DOI: 10.11646/zootaxa.4691.2.5
03FD87F7C315367DFF7931D1FE5E4D00.taxon	materials_examined	Material examined: HOLOTYPE MALE: Argentina, La Pampa, Santa Rosa, Provincial Forest Nursery. 12. II. 2016. Collected from leaf galls of Prosopis caldenia. L. G Cornejo col. (MACN). PARATYPES: four males, eleven females same data as holotype (MACN) except dates, ranging from 4 to 12 February 2016; seven larvae Argentina, La Pampa, Santa Rosa, Provincial Forest Nursery, 6. II. 2016, from leaf galls of Prosopis caldenia. L. G Cornejo col. (MACN); five pupae Argentina, La Pampa, Santa Rosa, Provincial Forest Nursery, 4. II. 2016, from leaf galls of Prosopis caldenia. L. G Cornejo col. (MACN).	en	Cornejo, Laura Gabriela, Molas, Bárbara Mariana Corró, Kuzmanich, Nicolás, Martínez, Juan José (2019): New species of Rhopalomyia and Dasineura (Diptera: Cecidomyiidae) associated with Prosopis caldenia Burkart (Fabaceae) in Argentina. Zootaxa 4691 (2): 161-170, DOI: 10.11646/zootaxa.4691.2.5
03FD87F7C315367DFF7931D1FE5E4D00.taxon	etymology	Etymology: The specific name is the genitive of the host plant name.	en	Cornejo, Laura Gabriela, Molas, Bárbara Mariana Corró, Kuzmanich, Nicolás, Martínez, Juan José (2019): New species of Rhopalomyia and Dasineura (Diptera: Cecidomyiidae) associated with Prosopis caldenia Burkart (Fabaceae) in Argentina. Zootaxa 4691 (2): 161-170, DOI: 10.11646/zootaxa.4691.2.5
03FD87F7C315367DFF7931D1FE5E4D00.taxon	discussion	Remarks: Rhopalomyia prosopidis Kieffer is the only species of the genus previously known to induce galls in the subfamily Mimosoidea (Fabaceae). Its hosts include Prosopis alpataco, P. campestris, P. flexuosa and P. alba from Mendoza and San Luis provinces, Argentina. The type material of this species is presumed lost (Gagné & Jaschhof, 2017), and the only stages described are the larva and the pupa. They are consistent with those of R. caldeniae (absence of larval spatula, absence of pupal antennal horns and absence of pupal abdominal tergal spines). Despite its association with the same host plant genus and the general similarity with the available and scarce morphological information of R. prosopidis, the morphology of the galls on Prosopis caldenia is noticeably different. While individuals of Rhopalomyia caldeniae induce bivalve galls composed of two contiguous pinnulae, those of R. prosopidis induce galls on the buds entirely covered by modified and reduced leaves (Kieffer & Jörgensen 1910; Jörgensen 1917). Due to the differences on the biological behavior and the distinct gall, we consider Rhopalomyia caldeniae as a distinct species.	en	Cornejo, Laura Gabriela, Molas, Bárbara Mariana Corró, Kuzmanich, Nicolás, Martínez, Juan José (2019): New species of Rhopalomyia and Dasineura (Diptera: Cecidomyiidae) associated with Prosopis caldenia Burkart (Fabaceae) in Argentina. Zootaxa 4691 (2): 161-170, DOI: 10.11646/zootaxa.4691.2.5
03FD87F7C3103678FF79339BFD4948FF.taxon	description	(Figs. 3 – 4) Description Adults. Head (Fig. 3 a): Eyes large, widely connate dorsally, ommatidia circular. Antenna with 13 flagellomeres. Males with distinct necks about half as long as nodes, except for a reduced neck on first and 12 nd flagellomeres: circumfila composed of a continuous basal band and a partial apical band joined by two connectives, ventrally with about 20 setae with enlarged alveoli (Fig. 4 a). Females with last pair of flagellomeres fused: circumfila composed of basal and apical bands joined by two connectives and ventrally with about 7 – 8 setae with large alveoli. Frons with more than 20 setae on each side of the midline. Palpus four-segmented, each one with many setae, the first segment 0.7 times as long as second and third segments and 0.6 times as long as the last one. Thorax: Wing length, male 1.3 mm (n = 5); female 1.1 – 1.2 mm (n = 5), with vein R 5 shorter than wing length (Fig. 3 b). Anepimeron with 11 – 12 setae. Apodemes: tarsal claw toothed (Fig. 4 b); empodia distinctly longer than claw’s curvature and pulvilli reaching the claw’s basal tooth. Male abdomen: Tergites I – VII rectangular, with a single row of setae along posterior margin, setulose and sparsely covered with scales. Tergite VIII smaller than the preceding, completely setulose. Sternites I – VII rectangular, divided transversely, sclerotized as two pigmented transversal bands, each bearing a row of setae. Sternite VIII smaller than the preceding, completely setulose. All sclerites with an anterior pair of trichoid sensilla. Terminalia (Fig. 3 c): Cerci ovate, deeply separated, completely setulose, with few (2 – 3) apical setae dorsally and ventrally. Hypoproct shorter than cerci, with narrow lobes, incision U-shaped about 1 / 4 the length of hypoproct, uniformly covered with microtrichia and with one apical seta on each lobe. Gonocoxites cylindrical, entirely setulose, with setae on the apical third dorsally and completely setose ventrally. Gonostylus apically tapered, dorsally striate, with setae on apical third and a few setulae basally. Ventrally slightly striate apically and with a few setae, setulose basally. Gonocoxal mediobasal lobes sheathing the aedeagus, slightly shorter than the aedeagus, densely covered with long setulae directed backwards with two apical setose papillae. Aedeagus with quadrangular apex. Female abdomen: Tergites I – VI rectangular, with a single row of setae along posterior margin, setulose and sparsely covered with a few scales. Tergite VII entire, slightly constricted, evenly sclerotized and with many setae on posterior margin. Tergite VIII divided longitudinally, sclerites slightly divergent anteriorly and subparallel posteriorly (Fig. 3 d). Sternites I – VII similar as in male. All sclerites with an anterior pair of trichoid sensilla. Ovipositor with cerci covered with microtrichia beyond hypoproct, with long and thin setae basally; short and thick sensilla apically. Pupa: Length 1.4 – 1.5 mm (n = 3). Cephalic papillae with long setae. Base of antennae with distinct ridges (Fig 4 f). Prothoracic spiracle long and curved. Frons on each side of midline with one frontal setose facial papilla. Integument of abdominal segments covered with spiculae and without spines. Third instar larva: Length 1.3 – 2.1 mm (n = 5). Antennae about twice longer than wide. Integument orange with rounded verrucae Spatula clove-shaped (Fig. 4 c) with six papillae on each side of the spatula, arranged in two groups of three, each group with two bearing setae and the remaining one asetose (Fig. 4 d). Eight terminal papillae with long setae (Fig. 4 e).	en	Cornejo, Laura Gabriela, Molas, Bárbara Mariana Corró, Kuzmanich, Nicolás, Martínez, Juan José (2019): New species of Rhopalomyia and Dasineura (Diptera: Cecidomyiidae) associated with Prosopis caldenia Burkart (Fabaceae) in Argentina. Zootaxa 4691 (2): 161-170, DOI: 10.11646/zootaxa.4691.2.5
03FD87F7C3103678FF79339BFD4948FF.taxon	etymology	Etymology: The specific name is from the Spanish word for opportunistic and refers to the habit of this species of displacing the gall inducer.	en	Cornejo, Laura Gabriela, Molas, Bárbara Mariana Corró, Kuzmanich, Nicolás, Martínez, Juan José (2019): New species of Rhopalomyia and Dasineura (Diptera: Cecidomyiidae) associated with Prosopis caldenia Burkart (Fabaceae) in Argentina. Zootaxa 4691 (2): 161-170, DOI: 10.11646/zootaxa.4691.2.5
03FD87F7C3103678FF79339BFD4948FF.taxon	materials_examined	Material examined: HOLOTYPE MALE Argentina. La Pampa, Santa Rosa, Provincial Forest Nursery, 09. II. 2016, from leaf galls of Prosopis caldenia. L. G Cornejo col. (MACN). PARATYPES: three males, same data as holotype, except dates, from January 30 to February 10 2016 (MACN); seven females, same data as holotype except dates from February 2 to 18 2016 (MACN), eight larvae Argentina. La Pampa, Santa Rosa, Provincial For- est Nursery, 18. II. 2016 from leaf galls of Prosopis caldenia. L. G Cornejo col. (MACN), three pupae Argentina. La Pampa, Santa Rosa, Provincial Forest Nursery, 04. II. 2016, from leaf galls of Prosopis caldenia. L. G Cornejo col. (MACN).	en	Cornejo, Laura Gabriela, Molas, Bárbara Mariana Corró, Kuzmanich, Nicolás, Martínez, Juan José (2019): New species of Rhopalomyia and Dasineura (Diptera: Cecidomyiidae) associated with Prosopis caldenia Burkart (Fabaceae) in Argentina. Zootaxa 4691 (2): 161-170, DOI: 10.11646/zootaxa.4691.2.5
03FD87F7C3103678FF79339BFD4948FF.taxon	discussion	Remarks: Currently, there are no described Neotropical species of Dasineura associated with legumes. The only record is from Maia (2013), who mentioned an unidentified species of the genus Dasineura on Stryphnodendron sp. (Fabaceae). Most members of the genus associated with Mimosoidea (Fabaceae) are from the Australasian Region (Gagné & Jaschhof 2017; Kolesik et al. 2005). Representatives of this new species, Dasineura oportunista Cornejo & Martínez sp. nov., behave as inquilines on galls induced by R. caldeniae, and the most important character that distinguish them from other Dasineura species is the empodium longer than the bend in the claw.	en	Cornejo, Laura Gabriela, Molas, Bárbara Mariana Corró, Kuzmanich, Nicolás, Martínez, Juan José (2019): New species of Rhopalomyia and Dasineura (Diptera: Cecidomyiidae) associated with Prosopis caldenia Burkart (Fabaceae) in Argentina. Zootaxa 4691 (2): 161-170, DOI: 10.11646/zootaxa.4691.2.5
