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with a (lark spot outwardly, the femora with a dark line ahove 

 on the dilated portion ; hind legs like middle, but the tips of the 

 femora distinctly darker than the pale preceding part, tibiae some- 

 what darkened at base and apex. 



Head deeply concave, more shining and smoother in front of 

 the anterior ocellus than behind ; third antennal joint one and 

 two-thirds the length of the fourth, the latter five times as long as 

 its apical width, or rather more. Front lobe of pronotum not 

 noticeably emarginate in front, smooth and shining, except at 

 the sides, the posterior lobe duller, minutely and closely punct- 

 ured, smoother posteriorly ; propodeum sparsely and shortly 

 pilose, in front and at the sides and posteriorly dull, and with 

 fine transverse wrinkles, but with a smooth and shining area on 

 the disc. Abdomen dull, the surface with excessively fine longi- 

 tudinal rugulose sculpture, and bearing some sparse, short, pale 

 hairs. Length 4 mm. 



HAB. Nogales. Arizona ; a single example was taken ofi:' oak 

 on Sept. 2nd, 1906. 



\'ar. a. Like the type in structure but the fifth, sixth, and 

 seventh joints of the antennae are only very sordidly yellowish, 

 while the prothorax at the sides, and the mesonotal constriction, 

 are more conspicuously yellowish. This individual is larger than 

 the type. Length 4-5 mm. 



HAB. Xogales, Arizona; taken on oak, Aug. 1906. 



4. C/ia!cogonafo(^iis cuprcpoidcs sp. nov. 



Same form and structure as the preceding, of which it might 

 be a variety. It differs however too greatly in colour to be con- 

 sidered identical unless connecting links be found. 



Scape of antennae dark posteriorly, third joint also more or 

 less sordid except at base and apex, following three joints clear 

 yellow, seventh somewhat sordid, the three following dark, but 

 more or less yellow-tinged. Front coxae with a dark spot, the 

 front femora and tibiae dark brown, or piceous behind or above, 

 as also the whole of the basal tarsal joint, a dark line on the 

 chelar process of the fifth tarsal joint above near the extremity. 

 Middle and hind legs with the coxae black, except the extreme 

 apices ; the thickened part of femora and their apices, the hind 

 tibiae for the most part, and the base of the middle ones all dark. 

 Otherwise the colouration is like that of the preceding. Lengt'i 

 3.5 mm. 



HAB. Xogales, Arizona : one example on oak. 



