1 C6 Psyche [December 



Al)domen light brownish-yellow; a broad, brown, median stripe. 

 Ilolotype, cf, HighroUs, New Mexico; May 31, 1902. Paratypcs, 3 cT's; 

 Ilighrolls, New Mexico; May 31, June 2, and June 10, 1902. 

 Types in coll. Acad. Nat. Sci. Phil. 



This species differs from its nearest ally, caloptera Say, in its 

 very clearcut pattern of coloration, clear grey with distinct 

 pleural stripes, not yellowish with indistinct pleural stripes, etc. 



Trimicra pygmaa sp. nov. 



Small; brown; basal half of antennae yellow, remainder brown; wings greyish 

 with a short pubescence in all the cells. 



9 , length, 3.2 mm.: wing, 3.5 mm. 



Head: rostrum and palpi dark brown; antennae, basal seven segments light yel- 

 low, terminal segments dark brown; front, vertex and occiput dark brown. 



Thorax: dark brown, the lateral margin of the mesonotal pra^scutum dull yellow- 

 ish; scutum, scutellum and post-notum dark brown, dark stripes not evident; 

 pleurae dark brown, more yellowish near the dorsal margin. Halteres yellow. 

 Legs: co.xte and trochanters yellowish-brown; femora, tibiae and tarsi brown. 



Wings: hyaline with a slight greyish tinge; stigma indistinctly grey; veins brown, 

 R more yellowish. Wing covered in all the cells with a thick short pubescence. 

 Venation: (See fig. 3) Scj retracted far back from the tip of Sci; Rs leaves Ri at an 

 acute angle; fork of Ri+s deep, Ri+i being a little shorter than the b.isal deflection 

 of Cm; cross-vein r just beyond the fork of R:+) and far removed from the tip of 

 Ri. Abdomen : dark brown ; in the 9 with the valves of the ovipositor rather short, 

 yellow. 



Ilolotype: d", Woodworth's Lake, Fulton Co., N. Y. (alt. 1660 ft); Aug. 22, 1910 

 (Alexander, coll.). Allotype; 9 . with the type. Paratypes: 9 , Wooster, Ohio; 

 Sept. 20, 1911, on grass-lands. (Houser, coll.) In coll. John Houser. cf Coy 

 Glen, Ithaca, N. Y.; May 28, 1912; (Alexander and ShcflBeld.) 



The types are mounted in balsam, in the author's collection. 

 Related to T. anoniala 0. S. but much smaller and quite differ- 

 ently colored; Mexican specimens which I have- determined as 

 T. anomala may, or may not, be conspecific with T. pilipes Fabr. 

 of Europe (Compare Osten Sacken, Western Dipt., p. 200.) If 

 so, it is easily separ.ated from jrygmaea by its non-i)ubescent 

 wings. 



> I have applied the term 'pKudotutural pita' to the deep impressions on the antero-lateral 

 margin.s of the preescutxim existing in many TipuHdsc {humeral pita of Osten Sacken). The 

 ^double dots* of Oaten Sacken are spoken of above a-* the 'tuberculate pita.' 



