— 95— 



found in our other American species o( P/atyiiw/opiits, and seems to 

 be a verv distinct form. 



13. Deltocephalus coquilletti n. sp. 



l'\)rin lu-arlv of /^. debi/is Uhl., but somewhat l)r()ader, witli a shorter 

 vertex. Bhick, head and pronotum with four transverse white or fulvous 

 bands; elytra with as many oblique or transverse white lines. I^ength: male, 

 4 mm.; female, 5 mm. 



Head a little wider than the pronotum. X'ertex Hat, sharply, but bluntly 

 angled before; length at the center equal to tliree-fifths of the width on the 

 hind margin, and three-quarters the length of the pronotum ; passage to the 

 front subacute. Face broad, front narrow, occupying hardly more than one- 

 half the space between the eyes, moderately narrowed toward the apex ; 

 sides constricted opposite the antenna?. Ocelli situated a little less than one- 

 halfway from the eye to the apex of ihe head. Clypeus narrow, sides straight, 

 or nearly so, apex rounded. Lorae long, about as wide as the clypeus. 

 Cheeks broad, well angled below the eyes, very narrow beyond the lorae. 

 Pronotum short and broad, almost oblong ; anterior margin feebly rounded, 

 posterior straight ; sides long, viewed from above almost straight, the angle 

 to the posterior margin well rounded ; the latero-posterior margins' not dis- 

 tinct from the sides. Scutellum broad, almost as long as the pronotum, 

 closely punctured. Elytra broad, apex truncated ; longitudinal nervures 

 distinct, transverse obscured by the white lines. First apical areole of 

 the wing broad on the base. Face, legs and entire lower surface finely and 

 closely punctured. 



Color dark brown or black ; vertex, pronotum and clavus polished black; 

 scutellum dull. Anterior and posterior margins of the vertex and a trans- 

 verse band on the disc of the pronotum, obsolete before reaching the 

 sides, fulvous ; lateral and posterior margins of the pronotum broadly white; 

 medial line of the scutellum, two dots anteriorly on the disc, and two mar- 

 ginal ones before the apex, fulvous ; ocelli bright fulvous ; face deep black 

 with a broad transverse fulvous band on the middle, curved to correspond 

 very nearly with the superior edge. Legs, tergum and all beneath deep 

 black ; anterior and intermediate tibiae and tarsi, apex of the posterior 

 coxae and the genitalia, brown ; outer edges of all the tibiae and their spines 

 soiled white, the abdominal segments narrowly margined with the same 

 color. Antennae black; setae brown, pale at base. Elytra dark brown; clavus, 

 basal areole of the corium and margin of all the nervures as far as the 

 apical areoles, black; nervures, except at the apex, white; a broad band on 

 the apex of the basal areole extended posteriorly along the inner sector, 

 another on the base of the antiapical areoles, the claval nervures broadly and 

 the apical margin narrowly, ivory-white. Wings deep smoky, hyaline; 

 iridescent; nervures, slender, fuscous. 



Genital pieces. — Male: valve broad, triangular, apex roiuided; plates 

 broad, convex, together semicircular in form, fringed with soft white hairs, 

 the submargin with a row of stout bristles; on the disc, near the apex, there 

 is, in some examples, a small pale spot. 



Female. — Last ventral segment one and a half times as long as the pre- 

 ceding, narrow and compressed on the sides so as to inclose the base of 

 the py gofers, the apex feebly concave across its whole width; pygofers long 



