Vol. xxviii | ENTOMOLOGICAL NEWS. 363 



Coloration. General coloration cinnamon brown, shading to ochra- 

 ceous-buff rather broadly along the lateral margins of the pronotum. 

 Umlerparts and limbs ochraceous-buff, strongly tinged with buckthorn 

 brown. 



In addition to the type, one male paratype and a pair of im- 

 mature examples are before us. These specimens were all 

 taken at the same time, by Professor W. M. Wheeler, from a 

 colony of the ant, Solenopsis gcmmata (Fabricius), 10 found 

 under a stone on the shores of Lake Atitlan. 



A Second Collates with Spotted Wings (Hym.). 



By T. D. A. COCKERELL, Boulder, Colorado. 

 In 1868 Cresson described a remarkable Colletid bee from 

 Orizaba, Mexico, having black spots' on the wings. He called it 

 Collacs punctipennis. Cresson had only the female, but a 

 male was found in F. Smith's collection in the British Mu- 

 seum, collected in Guatemala. This I described in Annals and 

 Mag. of Nat. Hist., July, 1914, p. n. On April 20, 1912, Mr. 

 Aug. Busck collected at Porto Bello, Panama, two males of a 

 species very close to C. pnnctipcnnis. but with the thoracic hair 

 very differently colored. It may possibly prove to be only a 

 subspecies, but as no intermediates are known it is given the 

 specific rank which it probably deserves. 



Collates spiloptera n. sp. 



$ . Length about n mm.; wings as in C. punctipennis, but the rather 

 short hair of thorax above, and of tubercles, bright fox-red (in 

 punctipennis the thorax is clothed with short, dense white or hoary 

 pubescence, that on mesothorax shortest and mixed with sparse black 

 hairs, giving the surface a maculate appearance; scutellum with short 

 black pubescence, margined entirely with whitish). Only middle of 

 flagellum (joints 5-9) red beneath ; mesothorax very densely punctured; 

 second abdorrinal segment with punctures conspicuously smaller and 

 denser than on first ; genitalia with sagittal wings very large and 

 rounded, stipites covered on apical part with short yellowish hair, 

 but without any long spreading bristles. The malar space is much 

 broader than long. 



Type in the U. S. National Museum. 



10 Determined by Professor \\ . M. \\luvlcr, to whom we take pleas- 

 ure in dedicating the interesting myrmecophilous roach here described. 



