204 ENTOMOLOGICAL NEWS. [June, 'l8 



No. I shows a typical Tanyderine (Protoplasa), the radial field not 

 unlike the supposed ancestral Pediciine type. 



No. 2. Tricyphona protea Alex. ; note the long, oblique free 

 portion of R2, fused with Ri near the margin only (compare these two 

 branches, Ri and R2, with the corresponding figure i). 



No. 3. T. diaphana and allies; including diaphana (Doane), 

 exoloma (Doane) and frigida Alex.; here the posterior branch of the 

 sector, R4, and RS are separate (compare this field of the wing with 

 the corresponding one in fig. i). 



Brunetti (1912) erected the genus Amalopina for a small 

 species from India that agrees somewhat in venation with this 

 group of species. Later, Bergroth (1913) was inclined to 

 admit this name as valid, but included with it the group of 

 species just discussed. I do not believe that these three Ne- 

 arctic species belong to the same group as Brunetti's species 

 which has cell ist M.2 open by the atrophy of in and other 

 venational differences. Brunetti describes this group as hav- 

 ing the r-m cross-vein connecting with "the 2nd and 3rd longi- 

 tudinal veins." By this I suppose he means the 3rd and 4th 

 longitudinal veins since I know of no crane-fly where the r-m 

 cross-vein is not connected posteriorly with the median vein 

 (4th longitudinal). Or, it may be that Brunetti mistook the 

 basal deflection of R$ for the r-m cross-vein since this sim- 

 ulates a cross-vein and apparently connects the veins he de- 

 scribes. If we recognize Brunetti's group Amalopina surely 

 we must have other names for the many other groups, such as 

 T. kni^anai (fig. 5), T. apcrta Coq. etc. 



No. 4. The common Tricyphona type with the branch R2 short and 

 simulating a cross-vein and with veins R4 and RS fused for a varying 

 distance to form a petiole for cell R4, this fusion being longest in T. 

 brevlfurcatn, hannai and katahdin. The following Nearctic species 

 come in this group : 



T. ampla (Doane), T. aiiripennis (O. S.). T. calcar (O. S.) and 7*. 

 intinnnalis Alex. T. brciifurcata Alex.; T. hannai Alex. T. apcrta 

 Coq.; T. degenerata Alex. T. hypcrborca (O. S.). T. glacialis Alex.; 

 T. ritnpcnnis (Doane). T. scptentrionalis Rergr. ; T. ccn-ina Alex. T. 

 vernalis (O. S.), T. katahdin Alex, and T. paludiciila Alex. 



No. 5. T. ktiwanai Alex. (Japan) has the r-m cross-vein connect- 

 ing directly with the sector and the branches R2+3, R4 and R5 all 

 arising from a single point. 



