Occasional Papers of the Mitseiiin of Zoology 67 



Dorsum and relation of keels as usual. Keels with lateral 

 margin presenting the usual serration behind rounded anterior 

 corner, otherwise smooth, a single seta caudad of the serra- 

 tion ; caudal margin not toothed. (See, further, PI. 25, Fig. 

 172.) 



jMetazonites with transverse sulcus deep, a median longi- 

 tudinal sulcus also distinct. The region in front of the sulcus 

 is further divided on each side by a weaker longitudinal fur- 

 row, thus giving a larger mesal area and a smaller one adja- 

 cent to the keel. The region behind the transverse sulcus with 

 two large, rounded areas on each side adjacent to the sulcus 

 and four much smaller areas or tubercles on each side along 

 caudal border, these decreasing in size from the outer to the 

 mesal end of the series. Each of the larger anterior areas 

 bears a seta ; but the surface of the metazonites is otherwise 

 ^glabrous. Dorsal surface of keel moderately convexly ele- 

 vated, the surface smooth. 



Length, about 24 mm. ; width. 3 mm. 



Colombia: San Lorenzo. July 22, 1913 ; one female from 

 a bromeliad on tree at 5.000 feet. Holotype. AL C. Z.. 5,167. 



Chondrodesmus tamocalanus, sp. nov. 

 P!. 26, Fig. 179-182 



Dorsum black or nearly so, a narrow stripe along caudal 

 border of metazonites sometimes lighter, reddish, and the keels 

 yellowy the line limiting the yellow area running obliquely 

 from the mesal end of caudal edge of keel to cephalolateral 

 corner, the cephalolateral region commonly tinged with red- 

 dish. Cauda yellow. Collum narrowly bordered in front and 

 behind with vellow and its keels entirelv vellow. Antennae 



