Phyllophaga, Harris, 1827

Guzmán-Vásquez, Héctor Miguel & Martínez-Martínez, Laura, 2020, New Distribution Record for Phyllophaga latipes (Bates, 1888) with a Key to the Species of the Subgenus Chlaenobia from Oaxaca, Mexico (Coleoptera: Scarabaeidae), The Coleopterists Bulletin 74 (3), pp. 576-580 : 579

KEY TO THE SPECIES OF MALE PHYLLOPHAGA (CHLAENOBIA)

OCCURRING IN OAXACA, MEXICO

1. Antenna with 9 antennomeres ................ 2

1 ′. Antenna with 10 antennomeres ............... 3

2. Metatibial spurs short, straight and sharp; parameres as in Fig. 3a ........................... ................ P. ciliatipes (Blanchard, 1850)

2 ′. Metatibial spurs long, slender, slightly curved and with a rounded apex; parameres as in Fig. 3d ............. P. tzintzontliana Morón, 1992

3. Metaventrite moderately to very densely pilose ................................................... 4

3 ′. Metaventrite sparsely setose, portion adjacent to the midline almost or completely glabrous; parameres as in Fig. 3b ........................... ........................... P. vexata (Horn, 1885)

4. Clypeus slightly concave ....................... 5

4 ′. Clypeus deeply concave, in its anterior third strongly reflexed; second protarsomere about twice as long as wide; parameres as in Fig. 3c ....................... P. latipes ( Bates, 1888)

5. Metatibial spurs similar, slender, almost straight, with rounded apices; pronotum densely punctate; parameres as in Fig. 3e ... ..................... P. scabripyga ( Bates, 1888)

5 ′. Metatibial spurs slightly curved, almost equal in size; upper spur slender with rounded apex while lower one is coarse, with sharp, hookshaped apex; pronotum with less dense punctation than the previous species; parameres as in Fig. 3f ................................. .................. P. chiapensis ( Chapin, 1935)

Figures

Fig. 3. Parameres of Phyllophaga (Chlaenobia) spp. in caudal and lateral view. a) P. (Ch.) ciliatipes, b) P. (Ch.) vexata, c) P. (Ch.) latipes, d) P. (Ch.) tzintzontliana, e) P. (Ch.) scabripyga, f) P. (Ch.) chiapensis. All scale bars = 1 mm. [a–b redrawn from Chapin (1935), d from Morón (1992)]