493. 

 TIPULA LONGICORNIS. 



Order Diptera. Fam. Tipulidue. 



Type of the Genus, Tipula gigantea Fab. 

 TiPULA Linn., Fab., Lat., Meig., Curt. 



AntenncB inserted before the eyes, as long or longer than the 

 head, setaceous, slightly pubescent, 13 -jointed, each joint ex- 

 cepting the 2 first having a few spreading bristles arranged 

 round the base, 1st joint the longest and stoutest, 2EKi cup- 

 shaped, 3rd longer subelliptic, the remainder slightly attenuated 

 and decreasing in length and size to the last, which is minute 

 and suddenly narrowed towards the apex (3). 

 Labrum with a membranous margin covering the larynx (2* b). 

 Lip stout formed of 2 large lobes, cordate when opened (^), 

 bristly outside with two irregular horny bands (2^), 

 Palpi as long as the head, incurved, hairy and 5-jointed, basal 

 joint subglobose, 3 following long, of nearly equal size, stout 

 and subclavate, 5th as long or longer than the 3rd and 4th 

 united, filiform membranous and wrinkled (_/). 

 Head elongated into a cylindric rostrum, terminating in a hairy beak 

 over the mouth : eyes large lateral and globose approximating more 

 beneath than above (2, the head, SfC, in profile) : ocelli none. Thorax 

 thick and ovate : scutellum small transverse and semiovate. Abdo- 

 men long slender and clavate in the male, subfusiform in the female 

 with 2 horny lateral and a central lobe. Wings divaricating ivhen at 

 rest, with 2 discoidal cells, an areolet, and 7 cells at the apex (B, the 

 iving of T. quadrifaria), the 4th sometimes pedicled : halteres long 

 and capitate. Legs very long and slender, especially the anterior : 

 tibia; ivith 2 divaricating spines at the apex • tarsi tapering, 5-jointed, 

 basal Joint very long, 4th and 5th the shortest : claws curved, acute. 

 Larvae living in the ground, vermiform, attenuated towards the head^ 



truncated and rayed at the tail. 

 Pupae cylindrical, loith 2 short spines before, the margins of the seg- 

 ments serrated, the apex more or less tuberculated. 



LoNGicoRNis Curt. Guide, Gen. 1160. 



Male. Ochreous, antennae fuscous, 3 basal joints ochreous, crowa 

 of the head and upper side of rostrum slate-colour : Thorax black, 

 with cinereous pubescence, a double line down the centre and 

 one on each side darker, a yellow lunulate spot before each 

 of the wings, a spot on each side the scutellum pale ochreous : 

 abdomen with a short slate -coloured stripe on each side at the 

 base, sometimes inteiTupted and forming a lozenge sj^ot on the 

 back, extremity of the same colour, the margins of the segments 

 yellowish, the apex ochreous : wings tinged with very pale fus- 

 cous, costa and base yellow, stigma and neiTures brown : hal- 

 teres with the club fuscous : thighs at the apex and tibiae and 

 tarsi fuscous ochre. Female unknown. 



In the Cabinets of Mr. F. Walker and the Author. 



The large Tipulas are known in this country by the name of 

 " Okl Father," or "Daddy Long-legs;" and the almost vo- 

 luntary manner hi which the legs fall off on the least touch. 



