58 GEO. H. HORN, M. D. 



MACROBASIS Lee. 



in. linearis Lee, Journ. Acad. 1858, p. 23. 



Male. — First joint of anteunse rather longer than the head, gradually broader 

 to the tip and very feebly arcuate at base, second joint slightly longer than a 

 fourth of the first and as long as the third and fourth joints together; joints 

 3 — 11 equal in length, gradually more slender to tip. Anterior tibiae with a 

 single terminal spur. First joint of anterior tarsus shorter and broader than 

 the second, concave and smooth on its inner face. 



The first two joints of the antennae have a shallow but well defined broad 

 groove, pubescent at bottom, along the anterior edge. This character does not 

 appear in any other species. 



Female. — First joint of antennae shorter than half the head, second rather 

 more than half the first and but little longer than the third; joints .3 — 11 equal 

 in length, gradually more slender to tip. Anferior tibiae with two terminal 

 spurs; first joint of tarsus longer than the second and normal in form. 



This species was originally described from a female in bad condition 



collected by Capt. Pope on the Llano Estacado, recently .Mr. H. A. 



Brous has found several in the neighborhood of San Antonio, Texas, 



and from these the description above has been made. 



The original description may be amended as follovi's : 



Slender, piceous, moderately densely clothed with cinereous pubescence. 

 Elytra pale luteous, a darker spot on each side of scutellum, another in front 

 of humeri. Legs luteous, upper side of anterior femora, knees and tarsi darker. 

 Length .44 — .70 inch; 11 — 18 mm. 



M. Oissleri n. sp. — Slender, black, sparsely clothed with fine, short 

 cinereous pubescence, forming a denser line along the entire margin and 

 suture. Head oval, moderately densely punctulate, a smooth medial line and 

 space in front of each eye, thorax very little longer than wide, sides parallel, 

 suddenly narrowed in front, surface moderately densely punctured, a moder- 

 ately impressed median line and vague fovea on each side of disc. Elytra sub- 

 opaque, very indistinctly punctulate. Length .34 inch : 8.5 mm. 



Male. — First joint of antennae stout, feebly compressed, half the length of 

 the head, second joint half the length of first and a little shorter than the 

 third, the latter slightly longer than the fourth, joints 4 — 11 equal, gradually 

 more slender and very feebly compressed. Anterior tibiae curved, convex 

 forward, with one terminal spur. First joint of anterior tarsus much shorter 

 than the second, its inner apical angle obtusely prolonged and inner face 

 smooth and concave. 



Female. — Anterior tibiae with two terminal spurs, the first joint of the tarsus 

 longer than the second. Antennae scarcely diS'ering from the male. 



This species was given me by Mr. Carl F. Gissler, who accurately 

 observed its peculiar characters before he sent it. 



Occurs in Grant Co., New Mexico. 



With this form the differences between Macrohasis and Ej)icauta 

 seem to disappear. I place the species in the former genus because 

 the second joint of the antennae remains large while in all our species 



