593. 

 PARAGUS SIGILLATUS. 



Order Diptera. Fam. Syrphidae. 



Type of the Genus, Syrphus bicolor Fab. 

 Paragus Lat., Meig., Curt. — Syrphus and Mulio Fab. 



Antenme short, small and pubescent, inserted above the middle 

 of the face, nearly contiguous, porrected and 4-jointed, basal 

 joint a little elongated, pear-shaped, 2nd stouter obtrigonate, 

 3rd large, elongate-ovate, compressed, with a short curved naked 

 seta attached towards the base at the upper side (3). 

 Labrum much shorter than the lip, hollow and notched at the 

 apex i\b). 



Tongue shorter than the labrum, but strong homy and lanceolate 

 (c). 



MaxillcE shorter than the tongue, horny slender and curved (e) ; 

 Palpi the same length, membranous, clavate and pubescent (/). 

 Lip as long as the head when exserted, slender and terminated 

 by 2 hairy lobes surrounded by a membrane {g'). 

 Head rather large : face produced beloio the antennce ( (J), smooth and 

 forming an elliptical cavity to receive the trophi (*) ; eyes large pu- 

 bescent, meeting in front of the crown in the male, remote in the fe- 

 male (2 $ ) ; ocelli 3 in triangle, near the back of the head. Thorax 

 suborbicular , not broader than the head : scutellum semicircular. 

 Abdomen 6-jointed, scarcely so broad as the thorax, linear, stran- 

 gulated at the middle, depressed at the base, a little convex at the 

 apex. Wings rather small, parallel and incumbent in repose, the 

 apical transverse nervure parallel to the margin and removed from 

 it : halteres small and capitate. Legs rather short and slender : 

 trochanters, posterior rather long: thighs and tibiae simple, the 

 latter a little clavate: tarsi 5-jointed, basal joint the longest and a 

 little incrassated in the hinder pair, 4th and 5th joints short some- 

 what cup-shaped : claws and ^nWiVii distinct (8 f, a hind leg). 

 Obs. P. obscurus Meg. was the species dissected. 



SiGiLLATus Curt. Guide, Gen. 1224. 3^. 



Bluish-black, shining, minutely punctured and clothed with 

 ochreous hairs: antennae fuscous, with the 3rd joint ferruginous 

 inside, especially at the base : eyes large and chocolate-colour : 

 face pubescent, yellow, with the ridge down the middle and 

 mouth black ; halteres ochreous ; a semiorbicular or trigonate 

 ferruginous spot on the 3rd segment of the abdomen, the apex 

 brownish : legs ochreous, base of thighs piceous, the apex yel- 

 low, as well as the base of the tibiae. 



In the Author's Cabinet. 



PsARUs and Eumerus are related to Paragus, but the former 

 has a protuberance in front of the head from which the an- 



