PTYCHOPTERA. 337 



basi pedibusque luteis, femoribus tibiisque apice tarsisque nigris. Long. 

 6-7; alar. 8-10 lin. 



Black, shining. Antenna black. Wings slightly greyish, slightly 

 testaceous at the base, with a brown spot at the tip of the subcostal 

 vein. Halteres ferruginous. Abdomen luteous towards the base. Legs 

 luteous ; tarsi and tips of the femora and of the tibia3 black. 



Not common. (E. S.) 



Genus XVII. PTYCHOPTERA. 



PTYCHOPTERA, P. S. A. 20 (1805) ; Meig. ; Mcq. ; Zett. ; Gimm. ; 

 Sta3g. Tipula p., L. ; F. E. S. ; Scop. ; Schr. ; Gmel. ; Latr. 



Corpus magnum aut mediocre, elongatum, nitidum, glabriculum. Caput 

 sessile. Oculi rotundi, remoti. Proboscis exserta, capitulo magno 

 carnoso. Palpi 4-articulati, elongati, filiformes, incurvi, pilosuli ; 

 articulus primus brevis ; secundus et tertius paullo longiores, aequales ; 

 quartus longissimus, setaceus. Antennae 16-articulatae, porrectae, 

 filiformes, pilosulae; articulus primus brevis, crassiusculus, cylindri- 

 cus ; secundus brevissimus, cyathiformis ; tertius longissimus, filifor- 

 mis ; quartus et sequentes oblongi ; sextus-decimus minor. Prothorax 

 indistinctus. Thorax ovatus, supra convexus, striatus, antice nonnihil 

 prominulus. Scutellum parvum. Metathorax convexiusculus, sat 

 magnus. Alae divaricatse, modice Iata3, abdominis longitudine. Ab- 

 domen segmentis octo, basi angustatum. Pedes mediocres, subpu- 

 bcscentes, inermes ; coxa? modice longae ; femora apices versus leriiter 

 crassiora ; tibiae apice calcaratae. Mas. Antenna? thorace paullo lon- 

 giores. Abdomen apicem versus paullo incrassatum ; anus modice 

 crassus, breviusculus, parum reflexus, appendiculis 4 magis exsertis 

 subclavatis munitus. Foem. Antenna? thorace paullo breviores. Ab- 

 domen apicem versus distincte incrassatum ; apex acutus, stylis 

 analibus 2 modice longis, ensiformibus, parallelis, leniter incurvis. 

 Body large or of moderate size, elongated, shining, nearly bare. 

 Head sessile, transverse. Eyes round, rfmote. Rostrum rather short, 

 slightly acute above in front. Proboscis prominent, with a large fleshy 

 head. Palpi four-jointed, elongated, filiform, curved downward, some- 

 what pilose ; first joint short ; second and third rather longer, of equal 

 length ; fourth very long, setaceous. Antenna? sixteen-joiuted, porrect, 

 filiform, slightly pilose ; first joint short, cylindrical, rather thick ; 

 second cyathiform, very short; third filiform, very long; fourth and 

 following joints oblong ; sixteenth smaller. Prothorax indistincj;. Tho- 

 rax oval, convex, striated, slightly prominent in front. Scutellum small. 

 Metathorax rather large, slightly convex. Wings divaricate, mode- 

 rately broad, as long as the abdomen. Mediastinal vein ending at a 

 little beyond two-thirds of the length of the wing; subcostal ending 

 at five-sixths of the length, connected with the radial by a very shorl 



VOL. IV. 2 X 



