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5. 

 CTENOPHORA ORNATA. 



Order Diptera. Fam. Tipulidae Leach. Tipulariae Lat.^ Meig. 



Tijpe of the Genus Tipula pectinicornis Linn. 



Ctenophora Meig., 111., Lat., Fab., Leach. — Taniptera Zai.— Tipula Linn., 

 Fab. 



Antennce porrected, pilose, longer than the thorax and pectinated in 

 the males ; shorter and simple in the females ; composed of 13 joints, 

 1st joint long cylindric, 2nd very small, 3rd robust, somewhat cup- 

 shaped, the remainder long and slender, each producing from 2 to 4 

 rays in the males (fig. 3r and A, B, C) ; short, robust and rhomboidal 

 in the females, the terminal joint minute ovate (3 a). 

 Labium none. 



Tongue ? very short robust and horny. 

 Mandibles none. 



Maxillae short, rounded and pilose (2*c), to the base of which are at- 

 tached the Palpi, which are very long pilose pubescent, and incurved 

 (2, f), 4-jointed, 1st joint very small, 2nd and 3rd large, 4th very long 

 and flexible except at its base where it is rigid (2* f). 

 Mentum concealed. Lip very fleshy and pubescent, short and bilobed 



(2*g). 



Head transverse. Nasus horny ajlindric, projecting in a lobe above. Eyes 

 large oval. Ocelli none. (2, head in profile.) Thorax gibbous. Scu- 

 tellum S7nall rounded. Abdomen clavate in the male ; elongate- conic in 

 the female, the latter with the apex horny, acuminated and furcate (7*). 

 Wings divaricating, shining, containing about 18 cells. Halteres long 

 clavate. Legs long robust. Tibiae ; each producing a spine at the apex, the 

 last pair 2. Ta.rsi 5-jointed, basal joint long. C[a,ws bent. PxxWiWi distinct. 



Larvae inhabiting decayed trees. 



Ornata Meg. — Meig. Syst. Besch. v. \. p. 166. n. 10. 



Male : pubescent, yellow tinged with ferruginous. Antennae pubes- 

 cent, each joint excepting the 3 first and 2 last producing 4 branches, 

 in pairs, alternately long and short. Head and thorax black, the latter 

 margined with yellow, and ferruginous behind. Abdomen with the 3 

 first joints banded with black, the 5th and 6th with a triangular black 

 spot in the centre, the remainder ferruginous and black. Wings yel- 

 lowish, ferruginous at the costa, with a large blackish spot at the apex. 

 Tarsi black, excepting the base of the 1st joint. 



In the Cabinet of Mr. Dale. 



The genus Ctenophora, which is the handsomest of the TipuHdse, 

 and remarkable for its beautiful antennae, has been divided by 

 Meigen, in his admirable work now publishing, into three sections, 

 taken from the structure of the antennae of the males, examples of 

 which have been copied from his work, and are marked A, B, C 

 in the plate. 



It is worthy of remark, that the palpi of this genus, and probably 



