52 Psyche [April 



respects, but that species is evidently much more closely punctate, 

 and the lateral spines of the sixth segment are said to be short. 

 In Schrottky's table of Brazilian species it runs to the vicinity 

 of C. agilis Sm., which is smaller, with no red on abdomen, and C. 

 rufopida Sm., which is larger, with darkened wings in which are 

 irregular transparent spaces. In Holmberg's table (1903) it runs 

 out at 23, because the fourth ventral segment is perfectly simple, 

 without any process or teeth. In Friese's Argentine table (1908) 

 it runs to a species doubtfully determined by him as C. simillima 

 Sm., but I have seen the type of simillima, and it has a dark 

 stigma (cf. Trans. Am. Ent. Soc, XXXI, 335). Comparison with 

 the various species not included in the tables does not indicate 

 identity in any case. Among the northern species, our insect 

 is to be compared with the Mexican C. otomita Cresson, to which 

 it must be closely allied, differing however in the abdominal 

 banding. 



Caenonomada tertia sp. nov. 



Male. Length 8 1-9 5 mm.; structure as in C. hruneri Ashm.; bright lemon 

 yellow and black, the thin long hair very pale fulvous above, white beneath; eyes 

 fusco-ferruginous; clypeus very prominent, bright lemon yellow with a black band 

 along upper margin, above which is a large semicircular supraclypeal mark; labrum, 

 basal two-thirds of mandibles, and broad bands along anterior and posterior orbits, 

 all yellow, the band along anterior orbits ending in a sharp point on orbital margin 

 little below level of anterior ocellus; front shining, concave; scape greatly swollen, 

 bright yellow, with a triangular black patch at end; flagellum ferruginous, dark 

 fuscous above, with the structure typical of the genus; upper part of prothorax 

 broadly yellow; mesothorax dull black, the lateral margins and two very conspicu- 

 ous longitudional stripes (not reaching anterior or posterior margin) yellow; pleura 

 with an elongate yellow patch; axillae, anterior half of scutellum, postscutellum, 

 and a very large C-shaped mark on each side of metathorax, yellow; area of meta- 

 thorax triangular, black; legs yellow, black at base; hind tarsi ferruginous, with 

 ferruginous hair on inner side; hind femora yellow on outer side, black beneath, 

 on inner side black with two large yellow marks; abdomen bright yellow with six 

 broad black bands; apical plate yellow, black at apex; venter black in middle, 

 yellow at sides; tegulse fulvotestaceous, with a yellow spot; wings moderately 

 dusky; venation normal, third s. m. much longer than first or second. The six- 

 jointed maxillary palpi are very slender. Hind tibia with one spur very large, 

 the other very small. 



Feviale. Length 10| mm.; similar to the male, but the yellow not so bright, 

 and with the usual sexual differences; clypeus shining black, punctured, with about 

 the lower half pale yellow, except in middle; lateral face-marks broad below, but 

 abruptly cut-off at about level of antennae, except for a slender line which continues 



