228 GEO. H. HORN, M. D. 



Male. — Fifth ventral deeply cniarginatc, sixth oval, longer than wide, feebly 

 cinari^inate at tip; last dorsal oval, longer than wide and truncate at tip. 

 (PI. I, fig. 13). Female. — Unknown. 



Occurs near Fort. Yuma, California. 



C riiscula, Lee — Brownish testaceous, form less slender, sparsely pubes- 

 cent. Head moderately densely, but not coarsely punctured, eyes moderately 

 prominent. Antennre as long as half the body, ferruginous. Thorax scarcely 

 a fifth longer than wide, base much narrower than af)ex, feebly constricted in 

 front of middle, rather strongly compressed posteriorly, ante-scutellar im- 

 pression distinct, disc sparsely and finely punctate. Scutellum sub(iiiadrate, 

 truncate at tip. Elytra twice as wide as base of thorax, humeri distinct, sides 

 nearl}' parallel, apices conjointly rounded, disc with strice of feeble punctures 

 extending barely to midiUe, the outer striae longer, apical third of elytra finely 

 punetulate; an irregular testaceous fascia at middle sometimes becoming a 

 mere spot on each elytron. Body beneath and legs very sparingly punetulate, 

 paler in color than above. Length .22— .28 inch; 5.5 — 7 mm. 



Male. — Fifth ventral deeply emarginate, sixth oval, broadly but feebly emar- 

 ginate at tip. last dorsal narrower than the ventral, sides nearly straight and 

 convergent, tip very feebly emarginate. (PI. I, fig. 14). 



Female. — Last ventral oval at tip. 



This species occurs at Fort Yuma, and also in Arizona, where I 

 found specimens about the exuded gum of the Mesquite tree. 



C aiKlllIata, Sa}^ — Form slender, color brownish, legs and abdomen pale 

 testaceous, elytra with three transverse dentate testaceous fasc-ise Head brown, 

 densely punctured, eyes feebly prominent. Antennse nearly half the length 

 of the body, ferruginous. Thorax one-half longer than wide, densely punc- 

 tured, base narrower than apex, in front of middle moderately constricted, 

 posteriorly rather strongly compressed, ante-scutellar impression well marked. 

 Scutellum transversely oval. Klytra nearly twice as wide as base of thorax, 

 humeri distinct, sides gradually divergent, apices conjointly rounded, disc with 

 striae of coarse punctures which gradually become finer and extend four-lifths 

 to apex. Body beneath brown, abdomen and legs testaceous, very sparsely 

 punctate. Length .42 inch ; 10.5 mm. 



Male. — Fifth ventral deeply emarginate, sixth trapezoidal, longer than wide, 

 emarginate at tip with the angles obtusely prominent. Last dorsal elongate, 

 oval, narrower than the ventral, truncate at tip. (PI. I, fig. Li). 



Female. — Last ventral nearly semicircular, subtruncate at tip, last dorsal 

 similar in shape but longer. 



I have united baltrala, Lee, with this species, althoui;h the thorax 

 is less decidedly constricted before and behind the middle. The type 

 is a female and gives no character different from the female nf undii- 

 Inta. The discovery of the male may, however, cause it to be sepa- 

 rated, as we have already seen that the niost trifling superficial 

 <-haractcrs indicate a difference of species, better defined by sexual 

 jicculiaritios. 



Occurs from the Middle States to Kansas and Texas. 



