Sept. 1900.] 



Doane: North American Tipulid^. 189 



than the head, first three joints reddish brown, last five much lighter; first segment 

 cylindrical, second segment cylindrical for the most part but the distal one-fourth 

 much enlarged into a roundish knob ; third about as long as the knob of the second, 

 joming widely with the knob of the second but growing rapidly smaller distally ; 

 fourth equal in length to the third, fusiform ; fifth a little longer than the fourth, cyl- 

 indrical ; sixth, seventh and eighth subequal with the fifth ; all segments with a few 

 rather long stiff hairs (the above description of the antenna was drawn from a 

 mounted specimen, examined with a simple lens it is almost impossible to deteimine 

 the number of the segments) ; thorax brownish ; halteres yellow, knob qmte large, 

 elongated ; coxse very large, same color as the thorax, excavated above toward the 

 tip • femora reddish brown towards the base, darker toward the tip, long, appears 

 flattened when seen from above but quite concave posteriorly ; tibia reddish brown, 

 somewhat flattened, only slightly concave posteriorly; tarsi darker; claws rather 

 Ion- smooth; abdomen with six segments ; pleura dirty brownish white, remainder 

 reddish brown with a slightly darker median dorsal interrupted line ; basal portion of 

 ovipositor colored as the rest of the body, distal one-half reddish yellow, m some 



lights quite red, lower valves straight, sharp-pointed, upper valves slightly curved, 



longer, with more red ; the upper and lower valves separated toward the base. 



Length, female 4 mm. 



Habitat: Pullman, Wash., four females. (Doane.) Type no. 



123. Wash. Agric. Coll. & S. of S. 



Gonomyia virgata, sp. nov. (PI. VII, fig. 21.) 



Pale yellow ; head yellow ; palpi and antenn.^ brown, the latter when bent back 

 would reach to the base of the wings; thorax pale yellow ; dorsum almost completely 

 covered by the broad brownish stripes; a brown stripe running from the collare 

 to the base of the halteres and a narrow brown spot between the first and second pair 

 of cox« ; metanotum brown ; halteres pale, very slightly infuscated at the tip ; legs 

 tawny; tips of femora, tibia and tarsi somewhat darker ; abdomen brown ; ovipositor 

 ferrugineous ; wings hyaline ; stigma pale ; tip of the auxiliary vein a short distance 

 beyond the origin of the praefurca ; subcostal cross vein close to its tip ; no marginal 

 cross vein ; first submarginal cell a little more than half of the length of the second ; 

 inner end of the latter in one line with the first posterior and discal cells ; four pos- 

 terior cells; discal cell closed; posterior cross vein at its inner end; veins with a 

 short pubescence in the apical portion of the wing. Length, male 5 i^^m., female 

 6 mm.; wing 6.5 mm. 



Habitat: Tokeland, Wash., two males ; four females. (Doane.) 

 Type no. 146. Wash. Agric. Coll. & S. of S. 



Cryptolabis bisinuatis, sp. nov. (PI. VII, fig. 22.) 



Brown- head darker brown ; front rostrum and palpi blackish ; antennce brown, 

 darker toward the tip; thorax wholly grayish brown; halteres pale; legs tawny; 

 tarsi and the tips of the femora and the tibia darker brown ; abdomen dark brown, 

 very short; male genitalia paler; wings hyaline; veins brown; praefurca distinctly 

 bisinuate ; the verj- straight short sparse pubescence along the veins and m the cells 



