338 H. Friese. 



Females, 



1. Abdomen green-black, with reddish maculation, entirely reddish testaceous beneath; 



(face with pale markings, an inverted T-shaped mark on clypeus; pubescence of 



thorax above pale fulvous, on sides, beneath, and on head in front pale gray; a 



stripe of black hairs crossing the vertex), errans Fox. 



Abdomen deep black, more or less pubescent 2 



2. Griseous pubescence covering the entire body, that on thorax above and vertex 



slightlv fulvous, while the hair on legs from middle of tibiae to apex of two hind 

 pairs and anterior tarsi, black; abdomen pruinose; labrum in perfect specimens 

 densely pilose; a triangulär yellow spot on clypeus; antennae entirely black, the 

 first Joint of flagellum distinctly longer than the united length of four following 

 joints, pallida Fox. 

 Abdomen, at most, with pale pubescence on first and second dorsal segment, gene- 

 rally quite nude 3 



3. Only the first dorsal segment pubescent 4 



»The second abdominal segment, as well as the tirst, delicately pruinose,« 



hoffmannseggiae Ckll. (= lanosa Ckll. Q non Cress.) 



4. First dorsal segment not densely pubescent; (front broader, if anything, than the 



distance between the anterior ocellus and apex of clvpeus; the latter as well as 



the labrum, mandibles except apex, and inner orbits narrowlv beneath, orange; 



legs black, with black pubescence), caesalpiniae Ckll. 



First dorsal segment more or less densely pubescent, 5 



5. Clypeus and labrum pale, 6 



Clypeus and labrum black, the former with a carina extending from base almost to 



apex; mandibles and scape black; (labrum acuminate at tip; first Joint of flagellum 

 a little shorter than the united length of the four following joints; pubescence of 

 four hind legs entirely black), subhyalina Fox. 



6. Width of front, if anything, greater than the distance between the anterior ocellus 



and apex of clypeus; greater part of legs red, their pubescence black, except on 

 anterior femora and tibiae; apical margins of dorsal abdominal segments 2 and 3 

 laterally with pale pubescence; (clypeus, labrum, inner orbits beneath and man- 

 dibles, except apex, orange), rhodopus Ckll. 

 Width of front less than the distance between the anterior ocellus and apex of cly- 

 peus; legs black, or dark brown, 7 



7. Width of clypeus anteriorly scarcely greater than its length in the middle; labrum 



comparatively small, subtriangular, subacuminate at tip; pubescence on thorax 

 beneath pale, cockerelli n. n. (= hoffmannseggiae Ckll. 9) 



Width of clypeus anteriorly greater than its length in the middle; labrum larger, 

 semilunate, its apex broadly and roundly slightly emarginate; pubescence on thorax 

 beneath dark brown or blackish, atriventris Fox. 



Males. 



1. Apex of dorsal segments broadly margined with testaceous 2 



Abdomen deep black, margins of segments not at all testaceous 3 



2. First and second segments broadly fasciate with pale reddish-yellovv, which color 



also marks the sides of abdomen; segments 3 — 5 pale testaceous at apex; pube- 

 scence very dense, completely concealing sculpture of thorax. Length 21 mm., 



morsei Ckll. 



