12 THE CANADIAN ENTOMOLOGIST. 



I liave also seen two other series of this species from Mexico, on 

 slides from the same collection, wiiich evidently form a distinct race of 

 aurantii, and which I thought at first would certainly prove to be 

 specifically distinct. This form differs in having distinctly broader foVe 

 wings (about from 19 to 21 lines across the widest portion of the blade, 

 r2//r(7;//// bearing only about 15), their longest marginal cilia less than 

 a third of the greatest width (in the type form over a third), and the 

 nnteniise diffeiing in that each joint of the funicle is longer than the one 

 preceding, the third longest; whereas in the type form the second joint is 

 l)ngest. I have no doubt but that these forms grade into each other. 

 The specimens should be recorded. They are : Three females on a shde 

 wiih Signiphora libelled " 1745. Aspidtotus on soft wooded fibrous tree. 

 Cordoba, Mexico, 17, 7, '97, Koebele "; and thirteen females on a single 

 slide, with several species oi Signiphora {mexicana Ks\'\mQ2id, Jlavopalliaia 

 Ashmead, and townsendi Ashmead), together with an Ablerus, labelled 

 '1768. Aspidiotus on Hibiscus, Cuautla, Morelos, Mexico, May 29, '97, 

 Koebele." These last specimens varied in colour, most of them having 

 the abdomen wholly black-brown instead of brownish yellow. 



FURTHER NOTES ON DIABROTICA. 

 No. H. 



BY FRED. C. BOWDITCH, BROOKLINE, MASS. 

 (Continued from Vol. XLIII, page 417.) 

 D. houcardi, nov. sp. 



Head, thorax and scutel smooth shining black; antenn?e and feet 

 fuscous yellow; elytra bright purpie, lateral margin obsoletely viridescent, 

 with two transverse depressions and also humeral and lateral submedian 

 impressions. Length 7 mm. 



One example, Panama, in the Boucard collection of the Tring material; 



Belongs in sec. D, near coccinea Baly. The palpi are the colour of 

 the antennae; head with a deep frontal puncture; antennae more than half 

 as long as body, 2nd joint short, 4 much longer than 3. Thorax elongate, 

 sinuate and sharply angled behind with a deep transyerse depression, 

 occupying the rear half; elytra somewhat dilated at the rear ; the ist 

 transverse impression is at the rear of the anterior third, the 2nd is much 

 the larger of the two and occupies the middle of the elytra, the two con- 

 nected by a depression along the suture ; the humeral depression is 

 slightly curved inwards and ends about the beginning of the middle third 



January, 1912 



