198 INSECUTOR INSCITI^ MENSTRUUS 



This species has a close resemblance to the other species of 

 the genus, Bumenotus obscura Westwood, differing in (1) 

 being much smaller in size and rather slender, (2) the first 

 joint of antenna not protruding beyond the apex of head, and 

 (3) pronotum being distinctly constricted at middle. 



UNDESCRIBED SPECIES OF CRANE-FLIES FROM 



NEVs^ ZEALAND 



(Diptera, Superfamily Tipuloidea) 



By CHARLES P. ALEXANDER 



The new species diagnosed in this paper were included in 

 some extensive collections of these flies sent to me by my 

 friends, Messrs. Campbell, Gourlay, Harris, Howes and Watt, 

 to whom I am greatly indebted for many kindnesses in the 

 past. The types are preserved in the collection of the writer. 



Family RHYPHID.^ 



Trichocera aperta, new species. 



Male. — Length about 3.5 mm. ; wing 4.4 mm. 



Size larger than in most New Zealand species of the genus. 

 General coloration dark brown, the apex of the second scapal 

 segment paler. Mesonotum indistinctly variegated with testa- 

 ceous, especially at the suture, median area of the scutum and 

 on the scutellum. Halteres pale at the extreme base. Wings 

 hyaline, iridescent ; veins brown. Venation : Sc^ ending oppo- 

 site r; cell ist M., open by the atrophy of m; m-cu and basal 

 deflection of Cu^ nearly equal. No macrotrichiae in the cells 

 of the wing. 



Male hypopygium somewhat as in T. lobifera Alex. ; mesal 

 face of each pleural appendage near one-third the length with 

 a conspicuous fleshy lobe. Gonapophyses very complicated, con- 

 sisting of broad flattened blades, the apex of each set with 

 about a score of powerful spines, the mesal spines very short, 

 gradually increasing in size laterad ; caudal margin of this 



