Vol. XXvi] ENTOMOLOGICAL NEWS 3I 



coming out. Could not open nest. Bees not easily uisturl^d " 

 (No. 124.) 



Upon examination, the species appeared to be new. It 

 was seen to be closely allied to T. sirgleri mayarum GcU., 

 from Guatemala, but that insect has clear (suflfusedly yellow- 

 ish) wings, a larger mesothorax, and is much less densely pu- 

 bescent. It was also close to a specimen labelled "T. dorsalis 

 Sm.," from .Smith's collection, but that has yellow bands along 

 the inner orbits to the summit, le5«« ptibescent front, differently 

 colored wings, etc. 



I'nf ' ' !y. Iioucvcr, coniu- '3 



the .q , I of the name 7*. J" 1 : ■ i i^ 



applied it to T. pectoralis D. T., which .1 ither with 



Smith's «le •script ion nor with my Smithian .N|x.cunen. Two 

 (Icscripiioijs of T. dorsaiis by Smith are extant ; the first [mh- 

 lishcd (Cat. Hym. Brit. Mus.) in 1854; the second (Trans. 

 Ent. 5>oc.. I^nd.) in 1863. Upon comparison, discrepancies 

 appear. Thus, in 1854. it is said that the wings are testaceous, 

 in 1863 that they are hyaline. My supposed co-type, one of 

 Smith's own specimens, is the insect of 1863. Init what of the 

 dorsalis of 1854 frc»m ParA : cmiUl it be the insect found by 

 Mr. (iaigc? Tlic description certainly suggestctl such a possi- 

 bility. At this ix>int I forwarded my description to Mr. G. 



Mea«!' ■. of the British Museum, with a statement of 



my pt; , . He now kindly rq>lics that he finds in the Mu- 

 seum two distinct species under dorsaiis, one the original in- 

 sect of 1854, the other that of 1863. l)earing. like my Smithian 

 siH'rinicn. the numlier 18. My description of Mr. Gaige's 

 iiisii t fits the true dorsaiis "admirably." and is "without any 

 doubt" that species. I give this description herewith, as Smith's 

 account is too brief. 



Trigona dorsaiis Smith. 



IxuKth nearly 7 mm : afvlonim long and comfMiratively narrow; 

 hca«l l>riu<i. M.iok. v K-peu*. tnangttlar ntpraclypeal mark, tri- 



.iPKuUr l.-itcr.il mark space between dypetu and eye. and send- 



i:iK a sIiRht linear proce^* upwards alonf; orhil). labrum and mandibles 

 ihrome yellow, mandibles with a tiroad simple outer cutting edge. 



