AMEKI(;AN MUTILLID.E. 257 



convex, and approaches in shape that of the males of the next 

 group; the segment is strongly punctured, however, and for that 

 reason I have placed the species in group imperialis. 



The following tliirteen species are no doubt the females of some 

 of the species just enumerated under group imperialis : 



113. .Milt ilia arota Cress. 



Manila arota Cressoii, Tr. Am. Ent. Sue, v, 120, J, 1875. 

 f^phxrophthalnia arota Blake, ibid, xiii, 218, J, 1886. 

 California: San Diego. Only the unique type seen. 



114. Jfliitilla ceres n. sp. 



?. -Ground color: head aud thorax ferruginous: ahdomeu and legs black- 

 head, except vertex, covered with close, appressed, grayish pubescence; vertex' 

 thorax and second dorsal, except at sides and apex, with fulvous pubescence- 

 segments 2-5 with a fringe of white pubescence; remainder of insect with erect' 

 pale pubescence, that on tarsi somewhat golden ; punctures of second abdominal 

 segment above and beneath very large and separated; pygidium finely granu- 

 lated, delicately margined laterally. Length 8 mm. 



Arizona. One specimen. 



115. iVIiitilla zenobia Blake. 



Mntilla zenobia Blake, Tr. Am. Ent. See, vii, 250, J , 1879. 

 Sphserophlhalma zenobia Blake, ibid, xiii, 220, 9 , 1886. 

 California. 



116. Ulntilla niarpesia Blake. 



Mntilla marpesia Blake, Tr. Am. Ent. Soc, vii, 246, 9 , 1879. 

 ^phserophthalma marpesia Blake, ibid, xiii, 218, 9, 1886. 

 ^phxrophthalma luteola Blake, ibid, xiii, 235, 9, 1886. 



Kansas (Snow) ; Utah. Only the two original tvpes seen. It 

 seems that marpeda and luteola were described from the same 

 specimens. 



117. iVIiitilla lialcyuiie n. sp. 



9. -Entirely ferruginous, clothed with pale hair, that on head and thorax 

 above ch.se and appressed, on the abdomen from apex of segment 2 dense and 

 winter, elsewhere longer and erect, the first segment with a white band at apex • 

 legs rather robust : thorax short, subquadrate ; sides with few punctures • sec..nd 

 dorsal segment with strong punctures, which appear more or less confluent in 

 consequence of a thin, appressed pubescence, with which the segment is covered ■ 

 second ventral with stronger punctures ; pygidium finely rugose longitudinally' 

 Liength 9 mm. 



^ Oi.e specimen without precise locality. Occurs probably in the 

 Southwestern United States; very likely in Texas. 



118. .Yf iitilla diumeda n. sp. 



9.-Kntnely ferruginous, clothed with pale pubescence, that on head and pos- 



TK.\N.>5. A.M. KNT. SOC. XXV ('«, 



^■^•^> MARCH. 1899. 



