Vol. XXI] ENTOMOLOGICAL NEWS. 199 



each side of the abdomen anterior to the cornicles are four large, con- 

 spicuous lobes, or tubercles, which project laterally from the sides. The 

 anterior one is smaller, and ofttimes concealed. They appear as fleshy 

 lobes or flabellae. Along each side of the dorsal median of the abdo- 

 men is a longitudinal row of tubercles, which tubercles are quite ir- 

 regular in shape and size. The first pair, anteriorly, are conspicuous 

 and separate; the second pair are finger-like projections, larger than 

 the preceding pair, and joined at the base; the third pair smaller than 

 either of the two preceding pairs, and more widely separated; fourth 

 pair smaller, and more widely separated than the third; fifth pair, 

 which are on the segment bearing the cornicles, are represented by al- 

 most imperceptible elevations. (PL VIII, fig. 9). Antenna: Segments I 

 and II black, the remaining segments pale brownish, excepting the dis- 

 tal ends of IV and V and all of VI, which are blackish; 11-19, usually 

 13, transverse sensoria in a row on the basal three-fourths of Segment 

 III, and the usual ones at the tips of V and base VI; nearly or just 

 reaching the base of the cornicles; Segment III the longest, it being 

 one-half longer than IV, IV and V subequal, but IV invariably slightly 

 the longer, VI about one-half the length of III, the basal portion about 

 two-fifths longer than the filament. (PI. VIII, fig. 10). Eyes dark red. 

 Ocelli prominent in specimens mounted in balsam. Legs blackish ex- 

 cepting the middle portion of the tibiae; the posterior femora greatly 

 developed for jumping; the two hind femora with numerous small cir- 

 cular paler areas (differing from sensoria in that they are internal 

 rather than external). Wings hyaline, veins, brownish, typical of the 

 genus Caliiptents, the first and second discoidals branching at about 

 one-half the distance from where the third branches to the tip of the 

 wing. (PL VIII, fig. ii). Cornicles black and tuberculate. Style of the 

 globular type but slightly flattened as shown in the figure. (PI. VIII, 

 figs. 12 and 13). 



Measurements (from sfcicmens mounted in balsam) Length of 

 body, 1.49 mm.; width, 0.78 mm.; length of wing, 2.07 mm.; width, 

 0.86 mm.; antenna I, 0.05; IT, 0.049; III, 0.3912-0.4890, av., 0.4290; IV, 

 0.2526-0.3260, av., 0.2835; V, 0.2282-0.2934, av., 0.2542; VI, base, 

 0.1141-0.1385, av., 0.1287; VI, filament, 0.0733-0.1059, av., 0.0929; aver- 

 age total, 1.2873 mm.; cornicles, av., 0.066 mm.; style, av., 0.09 mm.; 

 hind tarsus, av., 0.114 mm. 



Described from 9 specimens collected at Lake Forest, 111., 

 June 24, 1909, mounted in balsam on five slides. Types in the 

 U. S. National Museum, in the State Laboratory of Natural 

 History as Ace. No. 43,266, and in the writer's collection. 



Type locality, northern Illinois. 



Monell's notes on this species are as follows : 



