42 PROCEEDINGS OF THE ACADEMY OF [Part I 



latter condition possibly being explainable in many instances by 

 our still insufficient knowledge of tropical American Tipulidae. 



Geranomyia recondita sp. n. 



■ Rostrum relatively short; head yellowish gray with a narrow 

 silvery gray line extending the length of the vertex, behind the 

 eyes bordered with dusky black; mesonotal praescutum ochreous, 

 heavily striped with reddish brown to plumbeous brown; scutellum 

 pale, pleura suffused with greenish; legs uniformly brown in color; 

 wings yellowish gray with a relatively heavy brown and gray pat- 

 tern, this including three conspicuous costal areas, the two largest 

 at the origin of Rs and the stigma; Sc short, extending but a short 

 distance beyond the origin of Rs. 



Male. — Length (excluding rostrum) 7-7.2 mm.; wing 7-8.7 mm. 

 rostrum about 3.3-3.4 mm. 



Female. — Length (excluding rostrum) 7-7.5 mm.; wing 8.2-9.3 

 mm.; rostrum about 3.2 mm. 



Rostrum relatively short, black. Antennae black. Head yellow- 

 ish gray; a narrow median line of silver}^ gray extending the length 

 of the vertex; on either side of this line, behind the eyes, a dusky 

 black area. Mesonotal praescutum ochreous, heavily striped w^th 

 darker; a narrow reddish brown median stripe that becomes obliter- 

 ated before the suture; lateral stripes darker brown, sometimes 

 plumbeous, behind the pseudosutural foveae broadly expanded lat- 

 erad, behind crossing the suture onto the scutal lobes; median area of 

 the scutum and the scutellum pale greenish white; postnotum with 

 the median sclerite brownish plumbeous, the lateral sclerites pale. 

 Pleura whitish, slightly pruinose, with yery strong light green tints 

 in fresh specimens. Halteres pale brown, the knobs darker. Legs 

 with the coxae greenish testaceous; trochanters testaceous; re- 

 mainder of the legs brown, the tarsi darker; the femora are unvari- 

 egated with other colors; claws small, at the base of each with a 

 comb of four or five teeth that decrease in size toward the base. 

 Wings with a yellowish gray tinge; cells C and Sc strongly yellow- 

 ish; wings with a heavy brown and gray pattern, there being three 

 conspicuous brown spots along the costal margin; one at the super- 

 numerary crossvein in cell Sc, the second at the origin of Rs and 

 tip of Sc, the third at the stigma; less distinct, gray, clouds and 

 seams along the cord and outer end of cell 1st Mo and at the ends 

 of veins 7^2+3, 1st A and Snd A; veins dark brown, yellow in the 

 pale costal areas. Venation: Sc relatively short, Sci ending a short 

 distance beyond the origin of Rs, this distance about equal to r; 

 Sc; at the tip of Sci] Rs long, gently arcuated; basal deflection of 

 J?4 + 5 shorter than the basal deflection of Cui] cell 1st M2 long and 

 narrow, longer than vein M^ beyond it, about equal to vein Mi + 

 beyond it; basal deflection of Cu^ at or beyond the fork of M. Ab- 

 domen reddish broAvn, the sternites more greenish. 



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