Manopus Laporte, 1840

Katovich, Kerry, 2008, A generic-level phylogenetic review of the Macrodactylini (Coleoptera: Scarabaeidae: Melolonthinae), Insecta Mundi 2008 (23), pp. 1-78 : 52-54

Manopus Laporte, 1840

( Figure 130-135 )

Manopus Laporte, 1840: 147 . Type species Manopus biguttatus Laporte, 1840 , by monotypy. Taxonomic Notes

The following generic diagnosis is based on two dissected homeotypes of the presumptive syntype of the type species M. biguttatus located at the MNHC and identified with a Laporte label .

Generic diagnosis

This genus is characterized by its elongate body; mottled coloration; prementum quadrate, medially grooved; clypeus with anterior angles acute, prelabrum partially visible; pronotum cordate, widest medially, posterior margin straight, medially concave; pygidium tear-shaped.

Generic redescription

Measurements: Prothorax at widest point 3.3 mm, elytra at widest point 4.5 mm, length 13.3 mm.

Color and vestiture: Head and pronotum dark brown, vestiture consisting of white setae, scutellum dark brown, densely covered with white setae, elytra golden brown, mottled, ventral surface dark brown.

Head: Clypeus coplanar with frons, with anterior angles acute ( Fig. 132 ); frons angled at 30 o; labrum in frontal view oval, slightly grooved ventrally, labrum not coplanar with clypeus, prelabrum visible ( Fig. 133 ); labium with prementum quadrate, medially grooved ( Fig.134 ); mandibles triangular, scissorial area well sclerotized, bidentate, molar area quadrate, well sclerotized; maxillary palpi with apical palpus oval, equal to segments 2-3 combined; antennae with 9 antennomeres, antennomeres 7-9 forming the club, club thin, length equal to antennomeres 3-6 combined, antennal insertions not visible in dorsal view.

Prothorax: Pronotum cordate, widest medially, anterior angle obtuse, lateral margin convex, posterior angle acute, posterior margin straight, medially concave ( Fig. 135 ); coxa transverse; tibia bidentate; pretarsus with claws weakly divergent, equal in length, both claws narrowly split, upper lobe slightly longer than lower lobe, narrow, lower lobe narrow on individual claw.

Mesothorax: Scutellum broadly triangular; elytra longer than wide, widest medially, elytral epipleuron narrowly rounded, dorsal surface flattened, lacking striae, anterior and posterior umbones prominent; pretarsus similar to prothoracic pretarsus.

Metathorax: Metathoracic leg with coxa widely separated; femur ovate, narrowing distally; tibia clavate, widest medially, narrowing in distal 1/4, widening at distal margin, posteroventral distal margin with two large spurs, spurs above tarsal articulation joint, posterior distal margin with deep, broad Ushaped groove; pretarsus with claws similar to prothoracic and mesothoracic claws.

Abdomen: Ventrites 2-4 subequal in length, 5 th visible ventrite (= propygidium) length equal to the length of ventrites 3-4 combined, 6 th ventrite equal in length to 5 th ventrite length, posterior margin with a slight membranous margin, ventrite and sternite of 5 th abdominal segment lacking a complete suture; pygidium tear-shaped, longer than wide, narrowing posteriorly, posterior margin blunt.

Diversity and Geographic Distribution

Manopus comprises two species, both restricted to Colombia.

Figures

Figure 130-135. Manopus biguttatus Laporte. 130) Dorsal habitus. 131) Left lateral view. 132) Clypeus and head, dorsal view. 133) Prelabrum and labrum, lateral view. 134) Prementum, ligula and labial palpi, ventral view. 135) Pronotum, dorsal view.