140 MR. n. M'LAOHLAN on EXTKA-KUROPEAN TBICHOrTERA. 



purple reflections ; fringes long and grey; veins blackish, (PI. IV. 



fig. 23, details.) 

 I have one c? and two $ from California, sent by Mr. Henry 

 Edwards. The insect is a true Agapetus in every respect. The 

 species of this genus are all small and obscure, and can only 

 be separated by the forms of the ventral tooth or teeth, and 

 of the appendices of the male j and even then, to ensure cer- 

 tainty, it is advisable always to examine living specimens when 

 that is possible. 



EXPLANATION OP THE PLATES. 

 Plate II. 



Fig. 1. Grammataulius brevilinea, M'Lach., J , appendices, from side. 



2. Stenophylax limbatus, M'Lach., S , appendices, fi-ora side. 



3. Neopki/lax concinnus, M'Lach., (5, neuration of wings; 3rt, maxillary 



palpus ; 3 b, labial palpus ; 3 e, appendices, from above ; 3 d, extremity 

 of abdomen and appendices, from beneath; 3e, app. intermed., more 

 enlarged. 



4. Notidobia griseola, M'Lach., $ , neuration of wings ; 4 a, appendices, 



from side ; 4 b, app. inf., seen internally, more enlarged ; 4 c, $ , extre- 

 mity of abdomen, from above. 



5. Notidobia nigricula, M'Lach., <J , appendices from side ; 5 a, app. inf , 



seen internally, more enlarged. 

 G. Nosopus podur/e?', M'Lach.,^, neuration of wings; Gfl, head; Gb, an- 

 terior leg ; 6 c, appendices, from above. 



7. Binarthrum fcrox, M'Lach., <J , neuration of wings ; 7 «, head ; 7 b, ap- 



pendices, from side. 



8. Perissoneura paradoxa, M'Lach., $ , neuration of wings; 8 a, basal 



portion of antenna ; 8 b, maxillary palpus ; 8 c, labial palpus ; 8 d, 

 extremity of abdomen, from beneath. 



Plate III. 



Fig. 9. Ascalajphomerus finitimus, M'Lach., J , neiu-ation of wings; 9a, head; 



9 b, maxillary palpus ; 9 c, labial palpus ; 9 d, appendices, from above ; 

 9 e, appendices, from side; 9/, app. inf., from beneath, more enlarged ; 

 9^, 5 , head ; 9 h, extremity of abdomen, from above ; 9 i, the same, from 

 beneath. 



10. Heteroplectron californicum, M'Lach.,,?, neuration of wings; 10a, 



basal portion of antenna ; 10 5, maxillary palpus ; 10 c, labial palpus ; 



10 a!, posterior leg ; 10 e, appendices, from above. 



11. Ganonema vicaritcm, Walk., S , appendices, from side. 



1.2. Ganonema molliculum, M'Lach., S , appendices, from side. 

 13. Setodes argentifera, M'Lach,, $ , neuration of wings ; 13 a, appendices, 

 from side. 



