A new species of the genus Stiltoblosyrus Davidian, 2020 (Coleoptera: Curculionidae: Entiminae) from China

A new species Stiltoblosyrus serratulus Davidian, sp. nov. is described from Sichuan Province of China. It is the northernmost species of the genus Stiltoblosyrus (Davidian, 2020). From all of the congeners it easily differs in row of large and stout spines at the inner side of hind tibia of the male. New species closely related to S. laticollis Davidian, 2020 and S. brevicornis Davidian, 2020 in size of the process at the inner apical angle of hind tibia of the male, which is distinctly shorter than 2nd segment of hind tarsus. Colour illustrations of habitus and important morphological characters are presented.

Revision of the genus Amazunculus Rafael (Diptera: Pipunculidae), with description of six new species

The species of the genus Amazunculus Rafael (Diptera: Pipunculidae) are large bodied flies, easily identified by their flattened hind tarsus and curved dm-m wing vein. The species of this Neotropical genus are revised, including six new species: Amazunculus acreanus sp. nov. (type-locality: Brazil, Acre, Rio Branco), A. bethoi sp. nov. (type-locality: Brazil, Amazonas, Carauari), A. francyae sp. nov. (type-locality: Ecuador, Napo), A. manauara sp. nov. (type-locality: Brazil, Amazonas, Manaus), A. panamensis sp. nov. (type-locality: Panama, Canal Zone) and A. psilalarius sp. nov. (type-locality: Venezuela, Amazonas). All these new species are described with an emphasis on structures of the male terminalia, which are fully illustrated. An identification key to the twelve species of Amazunculus is provided. The first record of Amazunculus in Central America (Panama) is documented.

A revision of the genus Bromeloecia Spuler (Diptera: Sphaeroceridae: Limosininae)

The genus Bromeloecia Spuler is revised, including 20 new and one previously described species. A key to species is provided, and species-level phylogenetic relationships are assessed on the basis of morphological characters. The B. winnemana species group, a mainly Nearctic species group characterized by ornamental processes on the hind tarsus, is excluded from the revision but is diagnosed, included in the key and considered within the phylogeny of Bromeloecia as an operational taxonomic unit. B. bromeliarum (Knab and Malloch) is redescribed and the following new species are described: B. abundantia, B. aculatus, B. aurita, B. balaena, B. brachium, B. cercarcuata, B. coniclunis, B. diabolunguia, B. ephippium, B. fractacincta, B. magna, B. peloris, B. pinna, B. ponsa, B. ramus, B. robustora, B. spathicercus, B. triunguia, B. undulata, and B. wolverinei.

Ommatomyia, a new genus from Vietnam (Diptera: Asilidae: Ommatiinae)

Ommatomyia gen. nov. and O. cera sp. nov. (Diptera: Asilidae: Ommatiinae) from South-Central Vietnam are described and figured. This new genus is allied to Ommatius Wiedemann, 1821 but is distinguished by the threesegmented, mostly bare stylus, bilateral plume of unusually short setae on the apical segment, and the basal tarsomere of the hind tarsus is as long as the apical four tarsomeres combined. A revised key to the Oriental genera is included.

A new species of Confusacris (Orthoptera: Acrididae), with a key to the known species

The genus Confusacris Yin & Li, 1987 belongs to Acrididae: Chrysochraontinae with 4 described species. It is readily distinguished from the related genera as follows: the antennae sharply ensiform, especially in the female; elytra of male with irregular quadrilateral cell, and the apex of the elytra being concave; lateral carinae of pronotum distinct or more distinct; first segment of hind tarsus longer than third one distinctly. All species of the genus are distributed in northern China. A new species, Confusacris xinjiangensis Wang & Zheng sp. n. is described in this paper. A key to the known species of the genus is given.

A New Species of Nasonovia Mordwilko (Homoptera: Aphididae)

The species described herein is referable to the subgenus Hyperomyzus Börner, which includes the species of Nasonovia in which the cornicles are swollen. This species can be distinguished from the two orher species known to occur in North America by means of the following key:1. Apical segment of hind tarsus longer than apical rostral segment; antennae with apical portions of segments usually darker in macerated material; broadest portion of cornicles usually not much wider than broadest portion of cauda ___2

On the Variations occurring in Aëdes argenteus, Poiret, in Lagos, Nigeria

Aëdes argenteus, Poiret, is a very variable mosquito, and it was thought that it would be interesting to examine a number of freshly-hatched and therefore undamaged specimens and to note how many conformed to the original description. No difficulty was experienced in obtaining the necessary material, as collections of larvae are received daily from the Medical Officer of Health. One thousand of each sex of the species were mounted in the order of their emergence from the pupal case and were examined under the binocular microscope. The one constant feature was found to be the lyre-shaped marking on the thorax, although even here the outline and the centre lines varied in breadth and in colour, and the centre lines varied in length. But as the abdomen and the hind tarsus showed the greatest variations, the present paper is restricted to a description of these.