New species and new records of leaf-miner flies (Diptera, Agromyzidae) from rainforest and inselberg at Mitaraka (French Guiana) Author Marc, Stéphanie Boucher Department of Natural Resource Sciences, McGill University, Macdonald Campus, Ste-Anne-de-Bellevue, Quebec, H 9 X 3 V 9 (Canada) stephanie.boucher@mcgill.ca Author Pollet, Marc Research Institute for Nature and Forest (INBO), Herman Teirlinckgebouw, Havenlaan 88 bus 73, B- 1000 Brussels (Belgium) and Operational Directory Taxonomy and Phylogeny, Entomology, Royal Belgian Institute for Natural Sciences (RBINS), Vautierstraat 29, B- 1000 Brussels (Belgium) text Zoosystema 2025 2025-01-14 47 2 13 42 https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2025v47a2.pdf journal article 10.5252/zoosystema2025v47a2 1638-9387 14670952 44C62D57-8949-492A-82C6-54EB2E52FB26 Phytoliriomyza jurgensi Spencer, 1983 ( Fig. 18 ) Phytoliriomyza jurgensi Spencer, 1983: 63 . — Martinez & Étienne 2002: 20. — Étienne & Martinez 2003a: 261 ; b: 95. MATERIAL EXAMINED . — Guyane • 1 ♂ , 1 ♀ ; Mitaraka , sampling site: MIT-E-savane roche 2; 02°13’59.8”N , 54°27’46.5”W ; 471 m ; open/partially opened areas; 13-20.VIII.2015 ; MT ( 6 m ); Pierre-Henri Dalens leg.; sample code: MITARAKA/230 , sorted by M. Pollet; MNHN . DIAGNOSIS . — This species can be recognized by its small size ( 1.2-1.4 mm ), yellow frons, yellow anepisternum and notopleuron, sparse acrostichal setulae in two rows, and a first flagellomere with long pubescence. DISTRIBUTION . — Costa Rica , Guadeloupe , St-Christopher, French Guiana (new record). HOST . — Unknown. REMARKS According to the original description ( Spencer 1983 ), P. jurgensi has the first flagellomere and palpus black, and the tibiae and tarsi brownish black. In contrast to this, the Mitaraka specimens are paler, with the first flagellomere and palp yellowish brown in the male and brown in the female, and the tibiae and tarsi dark yellow. The Mitaraka specimens are also slightly smaller with a wing length of 1.2 mm in the male and 1.4 mm in the female ( 1.4 mm in male in original description) and they have 3 +2 dc ( Fig. 18B ) (3 +1 dc in original description). Externally, P. jurgensi is most similar to P. scotica Spencer, 1962 (Neotropical records are available under P. pilosella Spencer, 1973 now recognized as a junior synonym of P. scotica (synonymy by von Tschirnhaus 2023 )). However, P. jurgensi can be distinguished from P. scotica by a yellow frons (part of frons slightly darker in P. scotica ), a brown or black palpus (yellow in P. scotica ), and a yellowish to greyish scutellum (brown in P. scotica ). Both species have extremely small and weakly sclerotized genitalia, but the distiphallus of P. jurgensi has a cup-shaped or funnel-shaped distal end ( Fig. 18C ) and the tubules have a darker and more sclerotized medial section ( Fig. 18D ). In P. scotica , the phallus has one pair of very long, coiled tubules.