62 A'("i\' Sf>i'cic'S of Sicrolii, Willi li.vf'Unuilory Xotcs. 



Si -So Wintis willnml pi^iiK'UlatiDU, or if i)i.>;nKMil- 

 rd, llu' i)i,unu'iilati<)ii ikH fuscous 



82-8.? Willis liyaliiu- 40, loiiiiiraiidnti 



83-82 Willies with a \ rllou ish hrown pi.niiK'iitation, 



gula stronyi\ ])rotuI)iTanl 41. lalirrps 



84-71 Head as wide as or uidir than lonK 



85-86 Pin i)unctures on llie liead ver.v fine 42. loculis 



86-83 Punctuation of the head more or less coarse 



87-88 Head dull black, opaque 4,^. ohsciira 



88-87 Mead more shining 44. Icz'i^^ata 



89-60 Smaller forms, less th.an ^ mms. in lengtli 



90-97 Slender forms 



91-94 Length of the head twice the width 



92-93 Head with a rather coarse surface sculptin-e 43. tenuis 



93-92 Head smooth, glabrous 4'' (frfrcssclla 



94-91 Length of the head less tlian twice the width 



95-96 Punctu.ition of the head rather coarse, legs 



and ;mtenn:e fuscous brown 47. i^lnbra 



96-93 Punctuation of the head line, legs and .anten- 

 nae flavous 48. flaviconiis 



97-90 Forms not remarkably slender 



g8-2ii Head longer tlian wide 



c)t)-ioo ^'ellowisli-hrown in color, often infuscate 49. tluibcrlakci 



100-99 ^*'t so, particolored or ])l;ick 



101-106 Particolored, \ellowisii Itrown .and l)lack 



102-103 Thorax .and alidomen xellowish lirown to 



fuscous, head black 30. j^iilcJira 



103-102 Thorax as well ;is the head black, or if 

 brown, then not entirely so 



104-103 Tliorax .and hi'.id lilack, posterior m.argin of 

 the abdomin.al segments onl>- yellowish 

 brown 31. j^ithcsccns 



103-J04 He.ad and most of the thorax bl.ack, pro- 

 thorax and abdomen p.artially yellowisli 

 brown 32. scmutiiirn 



106-101 Body entirely ])lack 



107-108 Wings witli .a fuscous pigment.ati<in 53. fiiscipcs 



108-107 Not so 



109-126 Wings with xellowish lirown pigmentation 



110-111 Depressed, without great thickness dorso- 



ventr.ally 54. fl(r:'ifciiiiis 



111-110 \ot depressed, dorso-ventrally thick 



112-113 Shining ])lack, somewhat brilliant 



113-114 Le.iis and antenn;e fiavous. width between 

 the eyes one and one-h.alf times the 

 length from eye to vertex, punctu.ation of 

 the head fine 55. Irflda 



114-113 Legs and .antenna' fuscous, width between 

 tile I'yes .and length from e\'e to vertex 

 equ.al, punctu.ation of ihe lu'.ad co.arsc 36. riillid<i 



18 1 



