Chaethippus Duda, 1930: 58

Riccardi, Paula Raile, 2020, Taxonomic revision of the genus Chaethippus Duda, 1930 (Diptera: Chloropidae) with the description of four species, Zootaxa 4802 (1), pp. 129-140 : 129

Chaethippus Duda, 1930: 58 .

Type species, Hippelates mellinus Becker, 1912 (subsequent designation, Duda, 1931: 165). Diagnosis. Body color background yellow, pruinose; ocellar triangle covered with fine short dark microtrichiae and with a large black spot anteriorly, occupying about ¾ of the frons length; facial carina sharp, generally complete; eye pale, with dense short pale hairs; ocellar setae short and reclinate; postocellars long and cruciate; interfrontal setulae curved inwards; about eight short fronto-orbital setae; outer vertical seta strongly developed, as long as postocellars; inner vertical seta circa three quarters length of outer vertical seta; frons pollinose, covered with short dense pilosity; gena with more than two rows of pilosity, unordered; vibrissa distinct; postpedicel entirely yellow, as long as deep; fore coxa with a row of strong setae anteriorly; tibial spur present or absent; 1+2 notopleurals; a row of long prescutellar setae; acrostichal setulae absent; scutum with dorsal markings usually orangish, almost indistinct; katepisternum pilose dorsally; male femoral organ composed by 3–4 rows of small warts ( fig. 12 ); tibial organ oval ( fig. 11 ); wing hyaline, as in figure 3 , cell dm-m large, anal lobe developed; abdomen yellow, almost inconspicuous brownish bands dorsally; remnant of the sixth abdominal sternite present, with a pair of small setae; hypandrium poorly sclerotized; distiphallus striate ( fig. 13 ); female terminalia telescopic, with cercus narrow and long ( fig. 22 ).

Figures

FIGURES 7–14. Chaethippus carioca sp.nov. paratypes. 7, habitus (scale bar 1 mm). 8, head in dorsal view. 9, head and thorax in profile (arrow indicates the fore coxa strong setae). 10, detail of the head in dorsal view. 11, tibial organ. 12, femoral organ. 13–14, male terminalia in terminal view (scale bar 0.1 mm). Abbreviations: bas, basiphallus; cer, cercus; dis, distiphallus; ep, epandrium; fr, frons; oc tr, ocellar triangle.

FIGURES 1–6. Chaethippus mellinus. 1, habitus (scale bar 1 mm). 2, head in frontal view (arrow points to the strong seta on the fore coxa). 3, wing. 4, head and thorax in dorsal view. 5, epandrium in terminal view. 6, male terminalia in ventral view (scale bar 0.1 mm). Abbreviations: bas, basiphallus; cer, cercus; dis, distiphallus; ep, epandrium; gon, gonites; hyp, hypandrium; phal, phallapodeme; phal s, phallapodemic sclerite; st 6, remnant of the 6th sternite.

FIGURES 20–24. Chaethippus maculatus sp.nov. holotype. 20, habitus (scale bar 1 mm). 21, head in dorsal view. 22, abdome ventral (scale bar 0.1 mm). 23, female terminalia, dorsal. 24, female terminalia, ventral. Abbreviations: cer, cercus; epi, epiproct; hypo, hypoproct.