602 MR. M. JACOBY ON PHYTOPHAGOUS COLEOPTERA. [NoV. 16, 



Length 4 lines. 



Head longer than broad, impunctate, the usual frontal elevations 

 almost absent, with a short but deep longitudinal groove. Antennae 

 half the length of the body, black. Thorax about' twice as broad 

 as long, narrowed in the middle, sides moderately flattened and 

 rounded, the posterior margin straight, anterior angles produced 

 into a distinct tooth ; surface impunctate, light fulvous or testaceous. 

 Scutellum black. Elytra slightly widened posteriorly, distinctly 

 margined, the base of each elytron distinctly raised and limited be- 

 hind by a transverse depression ; surface very minutely punctate, 

 testaceous, with a purplish black subrotundate patch from the base 

 to nearly the middle, but not extendingto the lateral margin. Breast 

 and part of the first abdominal segments, as well as the legs, black,; 

 abdomen fulvous ; claw-joint moderately thickened. 



Mus. Jacoby. 



71. ASPH^RA DECEMMACTJLATA, Sp. nOV. 



Broadly ovate. Light fulvous ; elytra closely and deeply punc- 

 tate, testaceous, stained with piceous near the apex, each elytron 

 with the base, a spot at the shoulder, two others before and two 

 narrow transverse bands behind the middle, bluish black. 



Length 4| lines. 



Head broader than long, vertex SMollen and impunctate, divided 

 from the frontal tubercles by a transverse groove, the former rather 

 broad and divided by a narrow central groove. Antennae entirely 

 fulvous, the last four terminal joints shorter than the preceding 

 ones. Thorax three times as broad as long, sides much flattened 

 and separated from the disk by a sinuate groove, the anterior angles 

 much produced and terminating in a distinct tooth ; surface with a 

 few fine punctures. Scutellum fulvous, impunctate. Elytra much 

 widened behind the middle with a distinct flattened margin, closely 

 and deeply punctured ; each elytron with a spot at the shoulder, two 

 others below the base, transversely placed, a narrow transverse line 

 immediately below the middle, and another oblique one near the apex, 

 as well as basal and sutural margins, bluish black ; these posterior 

 bands extend to the lateral, but not to the sutural margin ; inflexed 

 margin of the elytra concave, its anterior half fulvous, the posterior 

 one piceous. Underside and legs obscure fulvous, claw-joint rather 

 swollen. 



Mus. Jacoby. 



Galerucin^. 

 Genus Diabrotica, Chevr. 



72. Diabrotica dimidiata, Baly. 



This is one of the largest known species of the genus Diabrotica, 

 varying from five to over six lines. I may add to Baly's short dia- 

 gnosis, that the head is much longer than broad, the antennae ex- 

 tending to two thirds the length of the body, with the third joint 

 double the length of the second. Thorax with a curved transverse 

 depression at the disk, not extending to the sides, impunctate. Elytra 



