BY G. H. HAEDT. 189 



There are forty-seven specific names, all of which probably belong to the 

 group of species here classed as the genus Neoitamus, and in this paper twenty 

 of these names are distributed among twelve species, and two new specific names 

 are proposed. Twenty-seven further specific names require more adequate de- 

 scription than has yet been given to them; these, under their respective authors, 

 are given in the following Ust: — 



Macquart: Asilus acutangulattis, A. australis, A. exilis, A. feriferus, A. julvi- 

 puhesceiice, A. lo'iigiventris, A. nigrinus, A. rufocoxatus, A. rufometatarsis, A. 

 varifemoratns and finally A. laticornis, which does not conform to any known spe- 

 cies, and Jliss Ricardo states that the ovipositor is short and conical. 



Walker: J.si7)/.< coedicius, A. elicit us, A. maricus, A. ohumbratus, A. cilicatus 

 and Dysmachus rudis. 



Sehiner: Glaphyropyga australiasiae. 



Ricardo : C'erdistus aitstralis and Neoitamus australis (both of which specific 

 names are preoccupied by Macquart's .1. australis), N. gibbonsi and X. hi/ali- 

 jieiinis ; the S]iecies described as N. hyalipennis by White may not be identical with 

 Miss Ricardo's species. 



White: Neoitamus divaricatus, Rliabdotoitcimus lautus, B. lividus. H. rusti- 

 canus and B. volaticus. 



There are four other outstanding descriptions belonging to the Asilinae and, 

 judging from the described characters, they cannot belong to the group dealt with 

 here. These must be retained in the Asilits group sensu lato, and are as follows : — 

 Asilus ferrugiiieiventris Maeqnart, A. alligans Walker, A. behebulb Wiedemann 

 and A. regius Jaennicke. 



■ Asilus crabroniformis Meigen is cancelled from the Australian list. This is 

 a well known European species that was erroneously recorded from Tasmania by 

 Macquart in 1847. 



Key to the species of the genus Neoitamus described below, of which both sexes 



are known- 



1. The female ovipositor short, with two small separated lamellae. Male genitalia 



without an apical process. Two super- and one post-alar bristles 



ahditus White. 

 The female ovipositor with one styliform lamella. Male genitalia with or with- 

 out an apical process 2. 



2. The upper forceps of the male genitalia with a terminal process 3. 



The upper forceps of the male genitalia without a terminal process 6. 



3. The male genitalia short and globular, th« apical process is above the centre of 



and more or less at right angles to, the outer margin. Female ovipositor 



short. Two super- and three post-alar bristles xydiuyeiisis SchineT. 



The male genitaha elongate, the apical process rarely at right angles to the 

 apical border: if at right angles, it is situated below the centre of the apical 

 border 4. 



4. The seventh segment of the female abdomen black, shining and subcompressed, 



and as long as the moderately long ovipositor. Seen laterally, the apical half 

 of the male genitalia is more swollen than the basal half. Super- and post- 

 alar bristles three each (?) flavicinctits White. 



The seventh segment of the female abdomen normal. Seen laterally, the apical 

 half of the male genitalia is not swollen. Female ovipositor short 5. 



5. The dorsal and ventral surfaces of the male genitalia are more or less parallel. 



Super- and post-alar bristles two each fiaternus Macquart. 



