'.Hi NEW VoKK STATi: MUSEUM 



Professor Mik in (In- \Yiencr Knf. /eihinu'. 1*!M. p. HI I. says; 



" I Meses ( leader lassl sidi olnic Millie ant' jenes der < Sal lunj; 



( ' (i r y n ( n c u r a Winner!/. /.uruckfiihren i Ver^l. V. d. 



Wulp IMpi. NeedcH. IsTT. ri.YIIi. li-.t'.i. dime dass ii-h 

 hiermit et\\a den I',esiaml der (laiiuiijn Tersest lies an/weifeln 



niochte " l"|iui c(iiii|iaris(ni (if Iliis drscri|il ion \\-jtli 



Ilia I of Leptoconopfi SI. use. and u| |>l. :'..".. liiLi.lll. \villi li^.l I. 

 it \\ ill he seen Ilial the-e genera are cel'lailllx \e]-\ closely related 



if not identical. The only marked dilVereiu-e is thai LeptO- 

 c o n o p s has t\vo small hasal palpal joinis while T e r s e s I h e 8 

 is said I o have Imt one (i.e. Leptoconops has four jo in led 

 and T e r s e s i h s three-jointed palpi). <>nl\ one S|HM ies. 



Tersesthes torrens Townsend 

 1893. Tersesthes Town. Psyche. 371 



Female, (lenei-al color Idackish: e\es dark brown; antennal 

 excavations cinnamon color, nearly ihne limes llie diameter of 

 tirsl aiilennal joint; troni. face and lancels shining black, the 

 froni \\iih four blackish hairs on vertical margin arising from 

 four papillae; anieniiae black, clothed \\ith \\hiiish pubescent e; 

 palpi blackish, labinm brownish \\iih some \\hitish |mlK?scence 

 terminailx ; occipital orbits with a few black hairs. Thorax and 

 sciitellnm deep shining black, smooih. glabrous, except that the 

 thorax has some scattered black hairs anteriorly. Abdomen soft 

 opaipie brown. \ar\iiiLi' to li^ht bro\vn. in some of ihe sjiecimens 

 llavous or rufous at base; balsam mounts showing two oval black 

 sp(is ibodies?i at base of fifth segment; ovipositor brownish, 

 l.i -s Idackish. tarsi brownish, tibiae slightly so. Win^s grayish 

 hyaline, with hardly a smoky llavous tinue. the delicate fringe 

 of hind margin somewhat lon-esi on anal an.ule whi're it lei-nii- 

 nates abruptly; veins pale, except first and second longitudinal 

 veins, which are brown and end in a brown stigma on costal 

 margin (the first vein becomes obsolete just before reaching 

 stigma i ; halteres lu-ownisli. knobs whitish. 



Length of body (inc. ovi];ositor i . one and three fiflhs milli- 

 meters i empty; to two and one-fifth millimeters (abdomen 

 distended with blood); of winif one and one-fifth millimeters. 

 Fresh and alcoholic sjiecimens are slightly longer. r)escril>od 

 from both dried and alcoholic specimens and balsam mounts. 

 Six specimens collected June 21, on Continental divide. Socorro 

 countv X. Mex.. 7000 ft. 



