A^, 



365. 

 LEPTOMORPHUS WALKERI. 



Order Diptera. Fam. Tipulidae. 

 Type of the Genus, Leptomorphus Walkeri Cuit. 



Leptomokphus Curt. — Mycetophila Curtis s Guide. 



AnienncB contiguous, longer than the thorax, slightly tapering 

 and compressed 3 indistinctly pubescent ; composed of 16 joints, 

 the basal one robust, bristly and subovate-truncate, 2nd small, 

 3rd the longest, the remainder oblong, terminal joint a little 

 longer than the penultimate (3). 



Tropin short, excepting the Palpi, which are slender, slightly 

 hairy and incurved, composed of 4 joints, the terminal one long 

 and slender (f ). 

 Head small subglobose, cordate viewed above (2*). Eyes large ovate 

 lateral. Ocelli 3^ approximating nearly in a line on the crown 

 of the head, the central one very minute (Jig. 2 the head in pro- 

 file; 2\ the under side ; 2* the upper side). Thorax gibbose. Scu- 

 tellum transverse and truncated. Wings not longer than the 

 abdomen parallel and incumbent, the inferior margin ciliated, the 

 subcostal nervure not extending beyond the middle, the 2nd not 

 reaching the apex, and connected to the \st at the middle by a 

 transverse nervure; one discoidal cell, 4th and 5th nervures fur- 

 cated (9). Haheres short arid capitate. Abdomen long slender, 

 somewhat compressed and clavate, the back heeled, the apex pro- 

 ducing 2 srnall lamince. Legs long and slender. Thighs short. 

 Tibiae, anterior short, the others long, clothed with a few short 

 hairs, the forrner with one sharp spur at the apex, the others with 2. 

 Tarsi very long and 5-jointed, basal joint the longest, terminal the 

 shortest. Claws minute. 



Walkeri Curtis's Guide, Gen. 1 173. 1. & 1173\ 1. 



Male pale ochraceous, deep ochreous on the upper side, sparingly 

 pubescent : antennae fuscous, except the basal portion : eyes 

 and ocelli black : thorax with a dark brown oblong spot on the 

 disc : abdominal segments ferruginous at their margins, the 6th 

 piceous : wings iridescent, stained with yellow, deepest at the 

 costa, nervures fuscous, superior ones piceous, a fuscous spot on 

 the transverse nervures in the middle, a large portion of the 

 apex light fuscous, palest at the tip, the inferior margin slightly 

 clouded : tibiae fuscous ochre : tarsi fuscous. 

 Female unknown. 



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



The nervures in the wings of our insect agreed so well with 

 those of one of Meigen's divisions of Mycetophila (tab.9.f. 18.)> 



