6 Rev. T. A. Marshall's Monograijh of 



The $ may be distinguished from that of the following 

 species by the clearness of its tints, the greater size, and 

 more elongated form, especially as regards the head and 

 the basal segment of the abdomen : but the differences are 

 less marked in the other sex. 



Found very rarely in N. Ireland, according to Haliday : 

 more common in England, where I have taken 4 $ s and 

 3^s. 



6. Ccelinius elegans, Haliday. 



Alysia (C.) elegans, Hal., lib. cit., 23, ^ $ . 



Ch^non elegans, cingulatus, similis, rufonotatus, and 



hrevicornis. Curt., B. E., 289. 

 C. elegans. Marsh., lib. cit., p. 520, ;( $ . 



$ Black, with the middle of the abdomen ferruginous. Head 

 transverse, as wide as the thorax, or nearly so. Antennae stout, 

 longer than the head and thorax, submoniliform, 30-32-jointed, 

 blackish, ferruginous at the base and sometimes as far as the middle ; 

 the articulations subquadrate. Wings slightly infumated, subhyaline 

 towards the base ; squamulae brownish ; stigma and nervures fuscous 

 or fusco-ferruginous. Fore legs testaceous ; intermediate coxae, and 

 greater part of the femora of the same pair, blackish, as well as the 

 tips of all the tarsi ; hind legs blackish, with the trochanters, the tibiaj 

 nearly to the apex, and the base of the tarsi, ferruginous ; the exten* 

 of the dark colour is liable to vary. First abdominal segment 

 shorter than in the preceding species ; segments 2-3 rufous or dull 

 testaceous, the rest black. Terebra almost concealed. ^ Antennae 

 rather longer than the body, slender, black, 40-45-jointed ; middle 

 of the abdomen very obscurely ferruginous or piceous. Length, 1^2| 

 lines ; exp. 2j-3| lines. 



Var. (J Black ; mandibles rufescent ; palpi ferruginous ; base of 

 the antennae beneath, middle "of the abdomen, 'and legs, rufous ; 4 

 posterior coxae, and sometimes the upper edge of the hind femora, 

 blackish. Length, 2^ lines (Haliday). The author adds that having 

 no 5 of this var. he did not venture to set apart the (J s as a distinct 

 species. In fact they do not appear to diflfer, except in coloration. 



A common species in Great Britain and Ireland. 



IX. CH.ENON, Curtis. 

 Curt., B. E., 289 (1829). 



Form elongate, sublinear. Maxillary palpi unusually long, with 6 

 joints ; of which the 3rd is shorter and stouter than the 3 following ; 

 labial palpi 4-jointed. Head longer than broad, much prolonged. 



