573. 

 GERANOMYIA UNICOLOR. 



Order Diptera. Fam. Tipulidae. 



Type of the Genus, Geranomyia unicolor Hal. 

 Geranomyia Hal., Curt. 



Antenna alike in both sexes, short, pubescent and slightly 

 bristly ; 14-jointed, basal joint a little the longest, subcylindric, 

 2nd rather stouter, globose, the remainder slightly tapering and 

 oval, distinctly articulated, terminal joint a little longer and at- 

 tenuated (3). 



Trophi elongated and porrected, forming a proboscis consider- 

 ably longer than the antennae. 



Labrum long and linear, slightly hairy at the apex {lb). 

 Tongue very long and linear, pointed and a httle dilated below 

 the apex, which is hairy (c). 



Mentum short. Lip very long, divided from the base, forming 

 2 pilose branches, terminated by oblique elliptical lobes {g). 

 Palpi clothed with short hairs, attached to the anterior angles 

 of the mentum, short biarticulate ? basal joint globose, 2nd sub- 

 ovate (/). 

 Males smaller than the females. Head subglobose, obtrigonate above, 

 the clypeus rostriform, produced, cylindric, hairy, acuminated above 

 (1 o) : eyes remote above, but contiguous beneath in both sexes, large 

 lateral and granulated : ocelli none ?. Thorax gibbose and ovate ; 

 scutellum semiovate. Abdomen elongated, slender, linear in the 

 male and terminated by a central and 2 large lateral lobes, (7 ($ un- 

 derside of the apex) ; conical and furnished with horny spines in the 

 female. Wings parallel and incumbent in repose, with 9 longitudinal 

 and 4 transverse nervures towards the apex : halteres rather elon- 

 gated and clavate. Legs simple, long and very slender • tarsi 5- 

 jointed, basal joint very hng. 



Unicoloh Hal., Ent. Mag. 1. 155. — Curt. Guide, Gen. IISS"". 1. 

 Yellowish fuscous ; eyes black : abdomen shghtly pubescent : 

 wings iridescent and vitreous, nervures fuscous, subcostal one 

 ochreous at the middle, bearing 3 fuscous spots, one at the mid- 

 dle, a 2nd towards the base, and a 3rd nearer the apex, the ner- 

 vure in those places being black, transverse nervures suffused: 

 o'vapositor ochreous. 



In the Cabinets of Mr. Haliday and the Author. 



I FIRST discovered one of these curious insects in the Isle of 

 Wight in 1828, and from the nervures of the wings agreeing 

 with those of the Limnobia longiroslris of Wiedemann, I con- 

 cluded that it belonged to the same division, where it stood in 

 my Cabinet under the name of ' maculipennis\ 



