•178 Jli. r. D. A. Cockcrcll — Descri/'tious wnl 



(lark fuscous on inner side of basitarsi ; mesotliorax very 

 distinctly punetvired; tarsi red at apex. 



Las Cruce*, New Mexico, at (lowers of Spharalcea in 

 ^anlen of my house, Anj^. 21 (Cockerel!) . 



1 liad confused tliis with E. texana. hut, having receiveii 

 a topotype of the latter, I iind it is quite distinct. 



Exomalopsis thermal is, sp. u. 



$ . — Leupjlh about 9 mm. 



Very robust, bhick; hair of head and thorax long and 

 white,' with a slight creamy tint ; head very broad ; eyes 

 olive-°"reen ; labruui black ; uiandit)les chestnut-red in 

 middle ; clypeus Hatteued, shining, sparsely punctured ; 

 flao-ellum chestnut-red beueath; mesotliorax closely and 

 strongly punctured.; scutelluni shining, with very fine 

 punctures; tegulai bright rufo-fulvous. Wings yellowish, 

 the large stigma and the iiervures clear ferruginous ; small 

 joints of tarsi red ; hair on inner side of tarsi ferruginous ; 

 middle tibiae with short fuscous hair on outer side beyond 

 middle ; middle basitarsi with long white hair on outer side ; 

 scopa of hind legs long and plumose, largely black on outer 

 side that on basitarsus of three colours — black_, white, and 

 red. Abdomen very broad, with a glaucous tint; first two 

 segments closely punctured as far as the narrow arched pale 

 hair-baud, l)eyoncl that smooth and shining, the second 

 segment with excessively minute punctures ; segments 3 to 5 

 \\ lib broad bands of yellowish lomeutum, the fifth broadly 

 Iriiiged with fuscous hair apieally. 



Agua>ealicutes, Mexico, Dec. 1, 1909 (/'. C. Biskopp). 

 U.S. Nat. Museum. 



Exomalopsis ci'ucis, sp. n. 



$ . — Length about 85 mm. 



Closely allied to the last, differing thus : scape more or 

 less redilish, especially at base ; Hagellum pale ferruginous 

 beneath ; labrum clear red, with pale reddish hair ; hair of 

 thorax above strongly tinged with yellowish ; scutelium 

 closely and very distinctly punctured; first abdominal 

 .segment reddish basally. 



Medellin, Vera Cruz, Mexico (H. H. Hyde ; Baker coll., 

 1785). U.S. Nat. Museum. 



These two species are related to E. mellijjes, Cress, 

 (which has red legs) ; and more especially to E. fredtricif 

 Ckll., which has the tarsi, and tibiae, at apex, ferruginous — at 



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