122 Mr. Curtis's Descriptions of' some nondescript 



Gen. 736 a . Brachycercus Curt. 



Head short ; eyes small and remote, at least in one sex; thorax large and 

 ovate ; abdomen not longer than the thorax, terminated by 3 very short 

 setae, thick at the base : wings 2, rather short but ample, the form of a 

 Musca, with many longitudinal nervures and 3 transverse ones between the 

 costa and disc ; legs short, at least in one sex. — Obs. These characters, al- 

 though imperfect for want of specimens, are sufficient to distinguish this 

 group for the present. 



1. Harrisella Curt. — Harris's Exposition, tab. 6.f. 3 4" 1« 

 5 lines long. 



2. Chironomiformis Curt. 



24- lines: ochreous shining ; eyes black ; wings milk white, costa fuscous ; 

 legs whitish. This insect somewhat resembles a large female Chironomus. 



3. minima Curt. 



Inline. My specimen, taken in Norfolk twenty years since, is much in- 

 jured ; the head and collar are blackish, the body white, legs and filaments 

 pale ochre; wings similar to the last. 



Order TRICHOPTERA. Fam. Phryganid^. 



Gen. 748. Limnephilus Leach. — Curt. Brit. Ent. v.W.fol. 

 488. 



A. Posterior margin of superior wings emarginate. 



1. basal is Curt. 



Expansion of wings 16 lines : pale dirty ochre; superior wings freckled 

 with brown, leaving an oblique plain spot on the disc, with a larger one 

 connecting it with the apex ; stigma and a sinuated oblique line at the base 

 piceous, 3 pale spots on the posterior margin ; tips of inferior wings ochre- 

 ous variegated with brown ; body green. 



2. e margin at us Curt. 



17 lines : dull ochre ; superior wings mottled with a deeper colour, a pale 

 oblique spot on the disc unconnected with one beyond it, and a short nar- 

 row one approaching the posterior margin, which has three spots, and the 

 edge of the angle as well as the stigma piceous; apex of inferior wings 

 brownish ochre ; body green. 



B. Superior wings truncated obliquely at the apex. 



3. Strigosa Gmel. 



20 lines : dull ochre ; superior wings more or less freckled with brown, 

 having a dark longitudinal line at the apex of each wing, sometimes obli- 

 terated in the superior. 



5. binotatus Curt. 

 16 lines: superior wings ochreous yellow, deepest towards the base, with 

 three pale spots on the disc and a large one covering the transverse 

 nervures, a large brown spot at the posterior angle ; stigma large ovate 

 and piceous. 



6 a . discoidalis Curt. 

 15 lines : superior wings pale brown, with the costa (as far as the stigma), 

 a large spot below the disc connected with a large one covering the trans- 

 verse nervures, and .numerous dots semitransparent ; apical margin of in- 

 ferior wings fuscous, 



