720 ZOOLOGY INSECTS. 



large elongate mark on each side of prothorax in front of tegulse, a triangu- 

 lar spot beneath wings, two large transverse spots on scutellum, band on 

 postscutelluni interrupted medially, sometimes two spots on metathorax, 

 and sometimes two small spots on mesothorax posteriorly, lemon-yellow ; 

 clypeus rather broader than long, with a black dot on middle ; the apex 

 broadly and rather deeply emarginate ; the lateral angles prominent ; eyes 

 and base of mandibles contiguous ; tegulse yellow, pupiled with black or 

 brown ; wings pale fuscous ; legs lemon-yellow ; base of femora more or less 

 black ; abdomen lemon-yellow ; first segment with a black spot on each side 

 anteriorly, not inclosed, and a large triangular one on the middle; base of sec- 

 ond, and the three following, segments, more or less broadly black, deeply 

 indenting the yellow medially, and with a black spot on each side of the 

 middle ; apical segment black, with a large, triangular, black spot on each 

 side ; venter yellow, with a transverse, black spot on each side ; second seg- 

 ment broadly black at base, confluent with the lateral black spot ; the yel- 

 low band, occupying the apical half of this segment, divided by a black, 

 median stripe. Length, 8J lines. (Trans. Ana. Ent. Soc., 1875.) 



. Resembles the 9 in markings, except that the apical yellow bands 

 on second and three following segments are much narrower and acutely 

 indented medially and squarely on each side of the middle ; the black spots 

 not inclosed. Length, 6 lines. 



23 ? V specimens; Eastern Nevada; 1872; Dr. H. C. Yarrow : New 

 Mexico; 1873; H. W. Henshaw, Dr. H. C. Yarrow, Dr. Oscar Loew : 

 Colorado; Dr. H. C. Yarrow, Lieut. C. W. Whipple. 



Distinguished at once from germanica by the scape of antennae being 

 yellow beneath, and by the different ornamentation of the first abdominal 



segment. 



93. HAL1CTUS TKIZONATUS. sp. nor. 



PLATE XXXIII, FIG. 3. 



9 . Black ; finely, not densely punctured, clothed with a pale, griseous 

 pubescence, more dense on face, cheeks, sides of thorax, postscutellum and 

 sides of metathorax ; scutellum shining- ; inclosed space at base of metatho- 

 rax finely, longitudinally rugose ; tegulse brown ; wings hyaline, tinged 

 with yellow ; veins honey-yellow ; subcostal nerve black ; legs black, with 



