178. 

 CECIDOMYIA VERNA. 



Order Diptera. Fam. Tipulidee JLat.^ LeacJi. 

 Type of the Genus Cecidomya lutea Lat. 



Cecidomyia Meig., Lat. — Oligotrophus Lat. — Chironomus Fab. — 



Tipula Linn., DeG., Fab. 



Antemue porrected inserted in front of the face, approximating, 



as long or longer than the body, more or less moniliform, and 



pilose, composed of 13 subovate joints in the females (fig. 3 a), 



of 25 globose remote joints in the males (3). 



Lahrum and Tongue not visible. 



Mandibles and MaxiUcc none. 



Palpi exserted, incurved, longer than the lip, 4-jointed, slightly 



pilose (2 f). 



Lip short, bilobed, pilose (g). 

 Eyes lateral, coarsely granulated (2), sometimes covering the whole 

 Head which is globose. Ocelli none. Thorax globose. Scutellum 

 rounded. Abdomen longjtinear in the males ; short in the females. 

 Ovipositor retractile as long as the body. Wings incumbent ciliated 

 and pubescent, longer than the abdomen in the females, costal ner- 

 vure surrouiiding the wing, subcostal short, 2nd and 3rd extending 

 to the viargin, 4th angulated and producing a, transverse nervure 

 which unites with the 3rd. Halteres large capitate. Legs simple 

 nearly of equal length. Thighs and. Tibise of equal length. Tarsi 

 5-jointed, basal joint minute in all, 2nd as long as the tibiae, the re- 

 mainder decreasing in length. Claws very minute (8, afore leg). 

 LarvcB cylindric, elongated, attenuated to the apex with 14 feet ; de- 

 forming the leaves of plants by producing what are improperly called 

 Galls, in which they undergo their metamorphoses. 

 Pupge inclosed in a case. Lat. 



Obs. The dissectio7is and descriptions are made from C. verna Nob. The 

 antenna of the male is copied from Meig. Klass. 



Verna Nob. 



Female. Head and eyes intense black. Antennae fuscous. Thorax 

 cinereous, pubescent, having 3 abbreviated stripes down the 

 back, the spaces between them producing ochraceous hair. Scu- 

 tellum and halteres ochraceous. Abdomen hairy, dull castaneous, 

 ovipositor ochraceous. Wings iridescent, pale yellowish fuscous, 

 ferruginous at their insertion, the subcostal nervure of the same 

 colour, the others fuscous. Legs straw colour pubescent, thighs 

 with a black stripe on the top ; Tibiae fuscous especially at their 

 base ; tarsi black. 



In the Author's Cabinet. 



These little insects with their beautiful antennae and curious 

 tarsi are by no means unimportant objects, and their history 



