An integrated taxonomic revision of Diplotrichus (Coleoptera, Scolytinae) supports a Malagasy origin and single colonisation of South Africa Author Jordal, Bjarte H. text Zootaxa 2021 2021-09-29 5047 2 101 122 journal article 10.11646/zootaxa.5047.2.1 1175-5326 5540558 1B6FD2EB-A9BF-46C7-B2A3-5DC5FC78CBF7 Diplotrichus pulchellus Jordal , sp. nov. ( Figs 35, 38, 42 ) urn:lsid:zoobank.org:act: 2574A25B-E0F3-49BE-BA18-3B35819731EC Type material. Holotype , female: Madagascar , Montagne des Francais , 7.2 km SE Antsiranana , BLF3130, Malaise trap , B. Fischer , leg, 2001. The holotype is deposited in CAS . Diagnosis. Female frons with broad golden tuft of setae arising between inner eye margin to vertex, tips reaching level of antennal insertion; anterior margin of pronotum with a low irregular row of raised teeth; elytral apex very lightly inflated. Description, female. Length 1.8 mm , 2.8 × as long as wide; colour brown. Frons lightly concave, surface finely setose, largely covered by a broad tuft of golden setae with a median split, setae arising from inner margin of eyes to vertex, with tips reaching level of antennal insertion. Eyes separated above by 2.1 × their width. Antennal scapus triangular, with dense tuft of soft setae as long as scapus; club with two distinctly marked and strongly procurved sutures. Pronotum strongly asperate on anterior half, near anterior margin with a low irregular row of subcontiguous teeth or granules, smooth to lightly rugose behind summit; vestiture consisting of scattered small bristle- and hair-like setae. Elytral interstriae with densely placed spatulate setae in rows, striae not impressed, punctures obscure; elytral apex slightly inflated, posterolateral margin lightly granulated. Protibiae with three low apical tubercles (denticles not apparent). Etymology. A Latin nominative adjective meaning pretty, referring to the adorned female frons. Distribution and Biology. Madagascar . Only known from the type locality, collected in a Malaise trap. Remarks. This species has all of same essential characteristics as in D. acutior , but the elytral apex is less pointed, the raised crest near the anterior margin of the pronotum is lower and less regular, and the female frons has a shorter and much less voluminous tuft of setae.