Cyclocephala kuijteni (Scarabaeidae: Dynastinae: Cyclocephalini) a new species from Suriname Author Hielkema, Meindert A. Veenenburg 6, 2804 WX Gouda, The Netherlands text Insecta Mundi 2023 2023-09-29 2023 6 1 6 journal article 10.5281/zenodo.10134425 1942-1354 10134425 8F673BD6-7061-4B9E-9445-F8A5C21D5892 Cyclocephala kuijteni Hielkema , new species ( Fig. 1a , 2a , 3a ) Type material. Holotype male. Label data, with a single slash (/) indicating a break between lines, and a double slash (//) indicating a different label: “ Suriname , Para / 1 km W of Zanderij / 9-i-2010 // On UV /HPL in savanna / forest // [red paper] HOLOTYPE ♂ / Cyclocephala kuijteni / Hielkema 2023.” Aedeagus extracted and glued on separate card. Deposited at the RMNH . Description. Male holotype : Length 18 mm , width across humeri 8 mm . Color reddish brown. Basal part of the frons and elytra, except for the outer edges and sutural margin, darker brown. Outer edges of protibia darkened ( Fig. 1a ). Head. Clypeus parabolic, apex weakly reflexed upwards. Apical and lateral edges rugulose, disc with moderately dense punctation, punctures unequal in size, becoming sparser centrally. Clypeofrontal suture biarcuate, distinct. Frons with a shallow furrow from clypeofrontal suture to halfway base, punctate, punctures unequal in size and sparser towards the center. Antennae with 10 antennomeres, club subequal in length to antennomeres 2–7. Pronotum. Shiny, sides evenly rounded, widest at one-third from base. Anterior angles acute, basal angles broadly rounded. Surface with minute punctures, set closer only along the sides, with some slightly larger punctures near the anterior angles. Base with marginal bead. Scutellum . Base and center with moderately dense punctation. Elytra. With large annulate punctures arranged in vague rows, mixed with fine punctation, the larger punctures becoming smaller towards margins and apex, punctures on apex obsolete. Pygidium . Regularly rounded with minute, sparse punctures; basal angles with moderately dense, larger, setiferous punctures. Prosternal process. High, distally with long setae on posterior half. Legs. Protibia with 2 apical teeth close together, basal tooth slightly removed from others, at about twothirds of tibial length. Protarsus enlarged, inside of tarsomere 4 with apical tooth, median claw narrowly incised. Aedeagus. Laterally ( Fig. 2a ) resembling that of C. hardyi ( Fig. 2b ) and with a similar but much smaller forward-pointing dorsoapical process of the phallobase. The distal ends of the parameres ( Fig. 3a ) are shorter than those of C. hardyi ( Fig. 3b ), with the tips not touching. The aedeagi of C. castanea ( Fig. 2c ) and C. pygidialis ( Fig. 2d ) do not have a dorsoapical process, and their parameres are shaped much differently ( Fig. 3c–d ). Female . Unknown. Distribution. Only known from near the village of Zanderij in the district of Para , Suriname . Coordinates: 5°27′37″N , 55°13′21″W . Etymology. This species is named in honor of the late Piet Kuijten, my mentor in scarabs and friend for many years.