557. 

 ERIOPTERA CRASSIPES. 



Order Diptera. Fam. Tipulidae. 



Type of the Genus, Tipula flavescens Linn. 



Erioptera Meig., Curt. — Polyraphia Meg. — Tipula Linn. 



AntenncE inserted in the middle of the face, approximating, some- 

 times a little longer than the thorax, 16-jointed, each joint, 

 excepting the first 2, clothed round the middle with a whorl of 

 beautiful hairs ; basal joint short ovate, 2nd small, somewhat 

 cup-shaped, 3rd elongated, flask-shaped, the remainder insensibly- 

 diminishing in size, the apical one elongate-ovate (3 (J); shorter 

 and less pilose in the female, with all the joints oval, excepting 

 the 2 basal ones (3 $). 



Labium short bilobed and hairy (2 *^) . Palpi incurved, clothed 

 with rough liairs, 4-jointed, basal joint slender and not longer 

 than the 2 following, which are short broad and truncated ob- 

 liquely, 4th rather long and slender (/). 

 Head small subglobose : eyes oval (2) .■ ocelli none. Thorax ovate : 

 scutellum rather large and oblong, rounded. Abdomen short, bi- 

 lobed in the male and acuminated in the female. Wings rather long, 

 incumbent and parallel, mostly villose, with about 9 longitudinal ner- 

 vures, 2 of them furcate and most of them united by transverse ner- 

 vures on the disc (9) : halteres elongated, capitate. Legs rather long, 

 intermediate the shortest: thighs slightly thickened towards the apex: 

 tibiae not longer and simple: tarsi 5-jointed, anterior the longest, 

 basal joint elongated, 4th and 5th short : claws minute. 

 Obs. The dissections were made from E. Hederce Curt. 



Crassipes Curt. Guide, Gen. 1153. 1. 



Ochreous ; antennae short, stout, pilose and brown ; head slate- 

 colour : thorax with the disc and 2 oval spots on the collar fer- 

 ruginous ; scutellum greyish, except at the base ; abdomen 

 brown on the upperside, excepting the apex : wings iridescent, 

 the pubescence and nervures ochreous : legs yellowish brown, 

 excepting the coxae, which are deep ochreous; base of the 

 thighs of a paler tint. 



In the Author s Cabinet. 



The pubescent nervures of the wings will for the most part 

 distinguish this from neighbouring genera, and the legs are 

 stouter than in most of the surrounding groups. Molophilus 

 (fol. 444.) is undoubtedly allied to Erioptera, but on comparing 

 the dissections the necessity of separating them will be readily 

 admitted. 



