Campsurus machado, De Lima & Cruz & Hamada, 2025

Campsurus machado sp. nov. De Lima, Cruz & Hamada

( Figures 8A–I View FIGURE 8 ; 9A–C View FIGURE 9 )

Type Material. Holotype: male imago ( INPA) from Brazil; Rondônia; Machadinho D’oeste, Machado River , 2 November waterfall, S08°54’27.77”, W062°10’36.53”, 23.viii.2016, P. V. Cruz, N. Hamada, cols GoogleMaps . Paratypes: 3 male imagos (1 at INPA, 2 at ENT-UNIR), same data as holotype GoogleMaps .

Diagnosis. Male imago. 1) sternum IX with posterior margin triangular, elongated and sclerotized ( Figs. 8C, F and G View FIGURE 8 ); 2) pedestal touching basally; inner projection subtriangular, short and robust, longer than wide; outer projection reduced, tapering towards the apex ( Fig. 8G View FIGURE 8 , 9A View FIGURE 9 ); 3) base of each penis subtrapezoid ( Figs. 8E and F View FIGURE 8 , 9A View FIGURE 9 ); 4) main lobe of penis sclerotized, with basal half expanded laterally, similar to ears, with fold facing dorsally ( Figs. 8C–F View FIGURE 8 , 9A–C View FIGURE 9 ); 5) secondary lobe vestigial ( Figs. 8C–F View FIGURE 8 , 9A and B View FIGURE 9 ).

Description. Male imago. Length (n= 4, mm): body, 10.01–11.2; fore wing 10.6–11.4; hind wing 4.9–5.5 (none of the caudal filaments of the four species are completely intact). General coloration yellowish ( Figs. 8A and B View FIGURE 8 ). Head yellowish, slightly shaded with gray between ocelli. Antennae whitish ( Fig. 8A View FIGURE 8 ). Thorax. Pronotum translucent; meso and metanotum yellowish with shaded sutures; parapsidal suture and area between posteroscutal protuberances shaded; pros- meso and metasternum yellowish; mesofurcasternum yellowish, inner margin of the mesofurcasternal plate diverging on posterior 1/2 ( Figs. 8A and B View FIGURE 8 ). Legs whitish. Wings. Forewing with membrane hyaline, area between veins C, Sc and R pigmented with white from the distal half; veins whitish; cross veins whitish. IMP1 connected directly to MP; ICuA1 connected directly to ICuA2. Hindwing with whitish veins. Abdomen whitish translucent, yellowing gradually from the terga VII–X ( Fig. 8A View FIGURE 8 ). Abdominal sterna whitish medially, sterna VII–X yellowish ( Fig. 8B View FIGURE 8 ). Genitalia. Sternum IX with posterior margin sclerotized, triangular and elongated ( Figs. 8C and F View FIGURE 8 , 9A and C View FIGURE 9 ); pedestal touching basally; inner projection subtriangular, short and robust, longer than wide; outer projection reduced, tapering towards the apex ( Fig. 8G View FIGURE 8 , 9A View FIGURE 9 ); forceps whitish; base of each penis subtrapezoid; main lobe of penis sclerotized, with basal half expanded laterally, similar to ears, with fold facing dorsally, sharply tapering towards the apex, curved ventrally; secondary lobe vestigial on inner margin of main lobe ( Figs. 8C–F View FIGURE 8 , 9A–C View FIGURE 9 ). Paraproct subquadrate, large and not protruding ( Figs. 8H and I View FIGURE 8 ). Caudal filaments translucent whitish.

Female imago. unknown.

Etymology. Name of the river in which the species was collected. Name in apposition.

Distribution. Rondônia — Brazil.