CANTHARIS. 449 
tate, with intermixed larger punctures; the head is sparsely, finely punctate; the thorax 
is rather broader than long, subquadrate, deeply transversely depressed in the middle 
behind and shallowly so in front, and finely punctured at the sides, base, and apex; the 
antenne are short and stout, and thickened outwardly in both sexes; the spurs of the — 
hind tibie are very slender, subequal, and yellow in colour. The male has a single 
spur to the anterior tibie, and the sixth ventral segment crescentically depressed and 
triangularly emarginate. 
We have received a pair of this remarkable species from Mr. Becker. 
24. Cantharis atrovirens. 
Cantharis atrovirens, Dugés, An. Mus. Michoacano, 1. p. 104°. 
Hab. Mexico (flohr?). 
Unknown tome. “Black, with metallic-green reflections; head covered with minute 
erosions; antenne gradually thickening outwardly; thorax subcampanulate, sculptured 
like the head; elytra strongly granulose; outer spur of the hind tibie lanciform.” 
Described from a single female example. The only other Mexican species of the genus 
with a slender outer spur to the hind tibie is C. gentzlis. 
25. Cantharis sanguineoguttata, (Tab. XX. figg. 26, ¢, var.; 26a, pygi- 
dium, 26 b, sixth ventral segment, of ditto; 27, 2 .) 
Lytta sanguine oguttata, Haag, Berl. ent. Zeitschr. 1880, p. 40°. 
Hab. Guaremata (coll. Haag and mus. Vindob.1; Sailé), Calderas (Champion), 
Chimaltenango, Tepan (Conradt). 
A narrow, elongate species, of an obscure violaceous, green, or eneous colour, the 
thorax with a rufous lateral patch, which is often obsolete; the legs and antenne 
elongate. The thorax is shining, impunctate, longer than broad, the sides obliquely 
converging from the middle forwards ; the elytra are very finely scabrous-punctate ; the 
hind tibial spurs are slender, equal. The male possesses extraordinary characters, 
which were mostly overlooked by Haag :—antenne with joints 4-7 greatly elongated ; 
anterior and posterior trochanters with a slender acute spine on their lower face ; first 
joint of the middle tarsi with a long, slender tooth on the inner side at the base, this 
tooth placed at right angles to the joint; last dorsal segment (or pygidium) with an 
elongate process in the middle at the apex, this process triangularly dilated at the tip, 
the apex of the segment semicircularly excised on either side of it; sixth ventral seg- 
ment very broadly and deeply excavate from the middle to the apex, deeply triangularly 
emarginate. In the female the antenne are very gradually thickened outwardly, joints 
4-10 slightly decreasing in length. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 2, March 1893. 3 MM 
