383 THE CANADIAN ENTOMOLOGIST. 



FURTHER NOTES ON DIABROTICA. 



No. II. 



BY FRED. C. BOWDJTCH, BROOKLINE, MASS. 



The paper on Part II of the genus Diabrotica, Trans. Ent. See, 

 London, 1891, was blocked out by Mr. Baly, and on his death was 

 finished and pubHshed by Mr. Gahan. Mr. Baly's preh'niinary work was 

 apparently only partially completed, as he omitted a considerable number 

 of forms described by Mr. Jacoby, most of which were enumerated by 

 Mr. Gahan in his subsequent paper published, I.e., in November, 1891 ; 

 five additional species described by Mr. Jacoby, P. Z. S. 1889, p. 281, 

 seem to have escaped notice : — 



D. estabanensis Jac, San Estaban, near anibitiosa Er. In addition 



to the type, I have a second specimen which was unnamed in 



the second Jacoby collection. 

 D. varicor7iis Jac, San Estaban, near inaeqiialis Baly. Besides the 



type, I have two examples from Paramba. 

 D. ohsairo-maculata Jac, Colonia-Tovar, near depressa Jac, from 



Mexico. 

 D, nigrodorsata Jac, Coionia-Tovar, should be placed apparently in 



K sec. My specimen is 9 . 

 D. simplicipefinis Jac, Carozal and Colonia-Tovar, should be placed 



near wiiforinis Jac, from Chiriqui. 



Over 500 forms are represented in my material. Their arrangement 

 reveals many undescribed species, some of which have already been 

 published. Those belonging to Baly's Sec. II follow : — 



D. i?tca, nov. sp. 



Head and thorax dark chocolate black, mouth parts piceous, antennae 

 black, piceous at base, joints 9-10 flavous, thorax deeply foveate at the 

 side and obsoletely behind, scutel and elytra dark chocolate brown, 

 shining, finely and somewhat obsoletely punctate striate, tricostate, and 

 with a broad subsutural and lateral flavous stripe which unite at the 

 shoulder and also at the apex ; body below brown, legs flavous, tibiae and 

 tarsi stained widi piceous. Length, 4 mm. 



Eight examples, Pachitea, Peru. 



General form elongate, slightly dilated behind, head with fine frontal 

 carina, and fovea at the vertex, and some fine punctures at the sides, 



November, 1911 



