A revision of Macromalthinus Pic, 1919 with description of six new species (Coleoptera: Cantharidae: Chauliognathinae) Author Biffi, Gabriel Author Constantin, Robert text Papéis Avulsos de Zoologia 2018 Pap. Avulsos Zool., S. Paulo 2018-11-29 58 1 22 http://dx.doi.org/10.11606/1807-0205/2018.58.58 journal article 10.11606/1807-0205/2018.58.58 1807-0205 5384147 97C262C2-6F02-4916-9533-43653FE5561F Macromalthinus globuliventris Brancucci, 1981 ( Fig. 51 ) Macromalthinus globuliventris Brancucci, 1981a: 266 ; Constantin & Chaboo, 2016: 200 . Material examined: PARATYPE : PERU . Valle Chanchamayo, 800 m , 13.VIII.1951 , Weyrauch leg. ( 1 ♂ NHMB ) ( Fig. 51 ). Other specimens: “17128, Amazon, Degand, Fry coll, 1905-100” ( 1 ♂ BMNH ) ; “34465, Amazon, Fry coll, 1905-100” ( 1 ♂ BMNH ) . Differential diagnosis: Head black; antenna brown, except antennomeres I-III and VII-VIII (sometimes IX), testaceous; pronotum pale yellow, elytra black with apical yellow patches; males: fore femur swollen, with rounded ventral tooth; ventrite IV with a pair of protuberances near posterior margin; ventrite VIII compressed apically, with longitudinal ridge and an arched, left transversal ridge; aedeagus with right prolongation of tegmen broadly projected dorsally; left setiferous prolongation vestigial, with a tuft of setae; females: abdominal ventrite VII long, posterior margin slightly projected. It differs from all the other species by having a pair of protuberances on ventrite IV of males. Distribution: Peru . The non-type studied specimens are labelled only as ‘Amazon’, and no other explicit locality information is available ( Fig. 66 ).