Dilophochila brevisetosa, Morón, Miguel Angel & Howden, Henry F., 2001

Morón, Miguel Angel & Howden, Henry F., 2001, New Species In The Genus Dilophochila Bates (Coleoptera: Melolonthidae: Rutelinae: Anomalini), The Coleopterists Bulletin 55 (1), pp. 51-64 : 62-63

Key to the Species of Dilophochila

1. Pronotum lacking setae except along margins or with very long setae scat­ tered irregularly on disc ( Figs. 24–28 ); pronotal punctures moderate in size, not contiguous except for some lateral punctures -------------------------------------------- 2 Pronotum with moderately short, erect setae more or less evenly spaced on disc ( Fig. 23 ); pronotal punctures variable in size, some very large, often contiguous on disc; male genitalia as in Figs. 6–7 ; female genital plates as in Fig. 10 ; vicinity of San Cristóbal de las Casas, Chiapas, México --------- --------------------------------------------------------------------------------------------------------- D. brevisetosa n.sp.

2. Clypeal­frontal suture not distinctly, abruptly depressed medially; elytral disc lacking setae except occasionally present near base; female pygidium uniformly convex ---------------------------------------------------------------------------------------------------------- 3 Clypeal­frontal suture with distinct circular or oval median depression; elytral disc with scattered setae; female pygidium distinctly prominent near the middle ( Fig. 55 ); male genitalia as in Figs. 53–54 ; female genital plates as in Fig. 56 ; vicinity of San Cristobal de las Casas, Chiapas, México ---- ------------------------------------------------------------------------- D. howdenorum Morón & Nogueira 3. Pronotum with groups of scattered long setae; male with subapical tooth on foretibia ---------------------------------------------------------------------------------------------------------------------- 4 Pronotal disk with, at most, one or two setae ( Figs. 21 ; 24 ); male lacking subapical tooth on foretibia ( Fig. 12 ); male genitalia as in Figs. 16–17 ; female genital plates as in Fig. 20 ; Francisco Morazán, Honduras ------------- ------------------------------------------------------------------------------------------------------------------------ D. gilli n.sp. 4. Clypeal margin anteriorly moderately to strongly reflexed; total body length less than 10 mm ------------------------------------------------------------------------------------------------------------ 5 Clypeal margin anteriorly feebly reflexed (less so in females); total body length usually more than 10 mm; male genitalia as in Figs. 48–49 ; female genital plates as in Fig. 52 ; Zacapa, Guatemala -------------- D. zacapana n.sp. 5. Clypeus and anterior­median surface of frons closely, finely rugose; apex of the parameres narrowed (Figs. 57–58); Veracruz, México ------------------------ --------------------------------------------------------------------------------------------------------- D. bolacoides Bates Clypeus and anterior­median surface of frons coarsely rugose, occasional large punctures present on frons ( Fig. 22 ); apex of the parameres expanded with lateral tooth ( Figs. 38–39 ); Southern Oaxaca, México --------------------------- ------------------------------------------------------------------------------------------------------- D. miahuatleca n.sp.

Figures

Figs. 23–28. Dorso­lateral view of pronota in Dilophochila spp. males. 23) D. brevisetosa; 24) D. gilli; 25) D. miahuatleca; 26) D. zacapana; 27) D. howdenorum; 28) D. bolacoides.

Figs. 1–10. Dilophochila brevisetosa. 1–2) Male foretibia, 1) dorsal view; 2) lateral view; 3) Male foretarsus, lateral view; 4) Male foretarsal claws, dorsal view; 5) Male hind tibia, lateral view; 6) Male genital capsule, lateral view; 7) Paramera and tectum, dorso­distal view; 8) Ventral plate of male genital capsule, ventral view of distal half; 9) Female pygidium, lateral view; 10) Female genital plates, ventral view. Scale lines 5 1 mm, except in Figs. 3–4, 10 5 0.5 mm.

Figs. 53–56. Dilophochila howdenorum Morón & Nogueira. 53) Paramera and tectum, dorso­distal view; 54) Male genital capsule, lateral view; 55) Female pygidium, lateral view; 56) Female genital plates, ventral view. Figs. 57–58. Dilophochila bolacoides Bates. 57) Male genital capsule, lateral view; 58) Paramera and tectum, dorsodistal view. Scale lines 5 1 mm, except in fig. 56 5 0.5 mm.

Figs. 21–22. Dorsal view of Dilophochila spp. 21) D. gilli, male; 22) D. miahuatleca, female.

Figs. 11–20. Dilophochila gilli. 11–12) Male foretibia, 11) dorsal view; 12) lateral view; 13) Male foretarsus, lateral view; 14) Male foretarsal claws, dorso­lateral view; 15) Male hind tibia, lateral view; 16) Male genital capsule, lateral view; 17) Paramera and tectum, dorso­distal view; 18) Ventral plate of male genital capsule, ventral view of distal half; 19) Female pygidium, lateral view; 20) Female genital plates, ventral view. Scale lines 5 1 mm, except in figs. 13–14, 20 5 0.5 mm.

Figs. 43–52. Dilophochila zacapana. 43–44) Male foretibia, 43) dorsal view; 44) lateral view; 45) Male foretarsus, lateral view. 46) Male foretarsal claws, dorsal view; 47) Male hind tibia, lateral view; 48) Male genital capsule, lateral view; 49) Paramera and tectum, dorso­distal view; 50) Ventral plate of male genital capsule, ventral view of distal half; 51) Female pygidium, lateral view; 52) Female genital plates, ventral view. Scale lines 5 1 mm, except in figs. 46, 50–52 5 0.5 mm.

Figs. 33–42. Dilophochila miahuatleca. 33–34) Male foretibia, 33) dorsal view; 34) lateral view; 35) Male foretarsus, lateral view; 36) Male foretarsal claws, dorso­lateral view; 37) Male hind tibia, lateral view. 38) Male genital capsule, lateral view. 39) Paramera and tectum, dorso­distal view; 40) Ventral plate of male genital capsule, ventral view of distal half; 41) Female pygidium, lateral view; 42) Female genital plates, ventral view. Scale lines 5 1 mm, except in figs. 35–36, 42 5 0.5 mm.