T. D. A. COCKERELL. 



243 



face, except clypeus, with dense ochreous hair ; clypeus with the lower 

 half and a conical projection upwards light yellow ; scape short and 

 black ; flagellum long, clear ferruginous beneath ; fine striae on area 

 of metathorax covering about two-thirds of surface. 



Among Smith's males this may be compared with P. alti- 

 chiis, but differs at once in the color of the legs, the tibiae 

 and tarsi being entirely red, the femora red in front, but 

 with the basal three-fourths black behind. 



Hab— Cairns, Queensland, " Kur., 4. 02 " ( Turner). Brit- 

 ish Museum. The female is the type. 



The following table separates a series of Australian 

 Halictiform bees in which the mesothorax is black (in P. 

 contaminatus dark brown) , and the abdomen is at least mainly 

 red or rufofulvous. 



Metathorax and abdomen rufofulvous. 



Parasphecodes contaminatus Ckll. 

 Metathorax black 1 . 



1. Metathorax with very strong rugas, and mesothorax very coarsely 



punctured ; Sphecodes-Wke species 2. 



Metathorax without such strong rugas, and mesothorax finely punc- 

 tured 3. 



2. Tibiae clear red Halictns ewarti Ckll. 



Tibiae dark Sphecodes profug'us Ckll. 



3. First r. n. entering second s. m 4 



Ftrst r. n. joining second t. c. ; none of the species small 5. 



4. Small, length a little over 5 mm. ; apex of male abdomen as in 



Proteraner Halictns hedleyi Ckll. 



Much larger; flagellum red above and beneath. 



Parasphecodes schomburgki Ckll. 9 . 



5. Tibiae and tarsi red ; clypeus partly red ( 9 ) or yellow (c?) 6. 



Tibiae and tarsi mainly dark 8. 



6. Scutellum and postscutellum densely covered with ochreous moss- 



like hair 7 . 



Scutellum and postscutellum without such hair P. sextus Ckll. 



7. Abdomen dark reddish, segments 3 and 4 about same color; first 



segment with a reversed black V P. van Ckll. 



Abdomen bright chestnut-red, in female wholly black beyond third 

 segment; no V on first segment P. basilautus Ckll. 



8. Larger, general color of thoracic hair ochreous or fulvous. 



P. cirriferus Ckll. 

 Smaller, general color of thoracic hair white 9. 



9. Larger, hind legs more hairy P. froggatti Ckll. 



Smaller, hind legs less hairy P. vulneratus Ckll. 



TRANS. AM. ENT. SOC, XXXVI. AUGUST, 1910. 



