NEW INSECTS FROM ARIZONA, ETC. 65 



Ilah. Buckeye, Arizona, at flowers of Cacurhita palmata, 

 October {CklL). 



MUTILLID^. 



Sphcero])hthalma foxi, Ckll. {^heterochroa), var. n. arizonica. 

 2 . Similar to the type, but in place of red hair on the head aud 

 thorax it is pale ochreous ; the scarlet on the second abdominal seg- 

 ment is very vivid. The colour-contrast is very striking, and gives the 

 insect a great superficial resemblance to IS. diujesi. 



Hah. Phoenix, Arizona, Oct. 15th, 1899 {CklL). 



Sphcerophthalma heliophila, sp. n. 

 $ . Length not quite 8 millim., rather slender, ferruginous. Head 

 large, a little wider than thorax, subquadrate seen from in front, but 

 the vertex rounded and large ; cheeks ample, rounded, not keeled or 

 spiued ; eyes small, facetted, slightly oval, very convex; antennal 

 fovfe bounded above by a ridge ; mandibles long, the apical half or 

 more black, slender, a well-developed tooth a little beyond the middle ; 

 antennae ferruginous, tips a little darkened, scape bent ; punctures of 

 front and vertex strong ; upper part of head with scanty appressed 

 shining orange hair, and upright black hairs, some quite long ; scape 

 and lower parts of head with scanty white hair. Thorax seen from 

 above pyriform, the dorsal surface rough, becoming reticulate on the 

 hinder part, with the same appressed shiniug orange hairs, and erect black 

 hairs, as on the head, except that on the metathorax (middle segment) 

 the orange-fulvous hairs are wanting, and there is a median longi- 

 tudinal band of appressed silver hair. Sides of thorax with very 

 scanty white hair, and a dense band of silver hairs extending from the 

 hind end as far forwards as the middle coxae. Legs slender, ferru- 

 ginous, with scanty white hairs ; spurs white ; tibial and tarsal spines 

 aud bristles black. First segment of abdomen small, nodose, con- 

 stricted at its junction with the second, ornamented above with a broad 

 longitudinal band of dense silver- white hair, basal projections thorn- 

 like seen from above, pyramidal seen from behind ; second segment 

 yellowish ferruginous, with strong but sparse punctures, a central oval 

 blackish patch, due to black hairs, connected vaguely with a broad 

 band of black hairs on the hind margm, extreme sides with a band of 

 silvery white ; segments 8 to 5 with silvery-white hair in the middle 

 aud at the sides, but black m the subdorsal region ; apex with black 

 hair ; ventral segments 2-i fringed with white. The tibial spurs are 

 serrated. 



Hab. Glendale, Arizona, running on the railroad track, 

 Oct. 31st, 1899 {Cuckerell). 



In Ashmead's table this runs into the restricted genus 

 Spkcerophtiialina. It does not fall exactly in any of Fox's groups ; 

 the facetted eyes throw it out of group occidentalis, and the 

 serrated spurs out of the three following groups. From the 

 other groups it is excluded by the non-emarginate eyes and the 

 non-tridentate mandibles. It is a pretty species, known by its 

 slender form and the silver-white bands as described. 



