Coronaproctus Li, Xu &Wu, 2023

Li, Jiani, Xu, Han & Wu, San-An, 2023, A new genus and species of giant mealybugs (Hemiptera: Coccomorpha: Monophlebidae) from eastern China, Zootaxa 5254 (3), pp. 434-442 : 435

Genus Coronaproctus Li, Xu &Wu gen. nov.

Type species: Coronaproctus castanopsis Li, Xu & Wu sp. nov. by current designation and monotypy.

Diagnosis. Adult female body elliptical, covered by solid waxy test. Antennae each 10-segmented. Legs stout, claw without a denticle; claw digitules short and setose. Mouthparts well-developed. Thoracic spiracles large, each without a cluster of disc pores on derm just outside of opening; abdominal spiracles numbering 7 pairs, each without wax pores within atrium. Ventral cicatrices numbering 13, arranged in a U-shape on abdominal venter. Ventromedial to submedial abdomen very membranous in young adult, developing into a marsupium with maturity, marsupial opening approximately U-shaped. Anal opening located dorsally at about ¼ of abdomen length from apex of abdomen, surrounded by a cluster of setae of different sizes. Anal tube short, with a single or double band of polygonal disc pores at inner end. Dorsum with numerous cylindrical spines, each swollen at base and apex, and a few long flagellate setae; ventral margins with numerous lanceolate spines; venter of thorax with numerous long thin hairs, and median area of abdominal venter with short hairs. Bilocular tubular pores absent. Quadrilocular disc pores abundant on dorsum and margins of venter. Multilocular disc pores of several different types present on venter.

Adult male body cylindrical, with 1 pair of long caudal extensions on abdominal segment VIII. Antennae filiform, each with 10 segments, segments distal to the second segment distinctly trinodose, each with 3 whorls of long setae. A pair of compound eyes present. Venter of head with a strongly sclerotized series of ridges forming a 5- armed star. Legs developed, tarsus 2-segmented; claw without a denticle, claw digitules short and setose. Prothorax dorsally with a pair of diagonal post-tergites and ventrally with a well-developed median ridge. Fore wing welldeveloped, dark, with alar lobe present. Hamulohalteres each with 4 hamuli. Penial sheath stout conical. Endophallus present. Disc pores of 4-locular type.

Etymology. The genus name is derived from Latin word “ corona ”, referring to the crown-like shape of the wax test of the adult female, and the latinized Greek suffix “- proktos ”, which refers to the anus structure; this suffix is used in the names of other genera related to the new species. The name is masculine.

Remarks. Amongst the genera belonging to the tribes Monophlebini sensu Morrison, Monophlebini sensu Gavrilov-Zimin and Labioproctini , there are six that have numerous spines on the dorsum and a marsupium on the abdominal venter, like the new genus: Gompholopium Gavrilov-Zimin , Hemaspidoproctus Morrison , Labioproctus Green , Misracoccus Rao , Pseudaspidoproctus Morrison ( Morrison 1928; Gavrilov-Zimin 2018, 2021), and Aspidoproctus Newstead , which has a half-marsupium. The differences between these seven genera are shown in Table 1 .