158 Eev. T. A. Marshall's monograph of 



4. Calyptus fasciatus, Nees. 



Sigalphusfasciatus, Nees, Mag. Ges. Berl., 1816, p. 250; 



Mon., i., 269 (? only); C.fasciatus, Hal., Ent. 



Mag., iii., 129, ? . 

 Black, shining, minutely pubescent ; abdomen often piceous ; 

 legs piceo-rufous, with black coxae, short and stout. Palpi and 

 mandibles testaceous. Clj'peus irregularly impressed. Antennae 

 2 black, filiform, submoniliform towards the apex, as long as the 

 body, 20-jointed, the joints shorter than in the rest of the species ; 

 those of the only g' at hand are mutilated. Prothorax smooth. 

 Mesothorax very gibbous, concave in front, and projecting over the 

 prothorax ; sutures distinct, scarcely punctate. Metathorax very 

 short, truncate, punctulate, somewhat shining, areated in 3 naiTow 

 compartments beneath the scutellum, the medial compartment 

 rounded behind. Wings brownish hyaline, with an indistinct 

 transparent streak under the stigma, which, with the nervures, is 

 fuscous ; radial areolet short, ovate, acuminate. Abdomen some- 

 what shorter and narrower than the thorax, flattened above, with 

 subparallel sides, truncated at the end of the 3d segment, which, 

 in the J , conceals the rest ; in the (J the posterior segments are 

 slightly exserted ; 1st segment rugulose, dull, deplanate, rather 

 shorter than its apical width, which is twice that of the base ; 1st 

 sutui'e deeply incised ; at the base are two short carinae ; tubercles 

 not prominent ; 2d and 3d segments smooth and very shining, 

 deplanate ; 2d segment shorter than the 1st and longer than the 

 3d. Terebra stout, somewhat decurved, a little shorter than the 

 abdomen. <^ similar in all respects. Length, 1 ; wings, 2^ lin. 



Ttie ^ described by Nees von Esenbeck, having the 

 1st segment smooth, the hind legs elongate, &c., clearly 

 belongs to some other species ; the true c? , which I have 

 taken, resembles the other sex. Nees and Haliday 

 possessed each a single ? , and the species is not 

 noticed by other writers. I has^e taken 5 females and 

 1 male on Umhelliferce at Barnstaple, St. Albans, and 

 Nunton, Wilts. 



5. Calyptus sigalphoides, n. s. 

 Prsecedente minor et gracilior. Piceus, capite nigro, palpis 

 pallidis, geuis infra oculos longius descendentibus. Antennae ? 

 graciles, corpore longiores, basi obscure testaceae apicem versus 

 nigricantes, 23-articulatae ; articuli 10 priores lineares, seusim 

 longitudine decrescentes, caeteri submoniliformes. Thorax com- 

 pressus, capite angustior. Prothorax pallide piceus, puuctulatus. 



