252 The Philippine Journal of Science 1917 



the above-mentioned locality.* It seems that the range of this 

 species is very limited. This species is closely related to P. 

 modestior Behr., but is easily distinguished from the latter by 

 the usually larger size, the narrower stripes on the elytra, and 

 the absense of a spot between the eyes. The color of P. modes- 

 tior is mostly dark glossy green, but in all the specimens of P. 

 igorota that were examined, the color is dull glossy black. 



Pachyrrhynchus loheri sp. nov. Plate I, fig. 3. 



Glossy black, elytra with very broad, light green, longitudinal 

 scale stripes. Rostrum comparatively short, transversely set 

 off and emarginate in the middle. Apical part densely punc- 

 tured, in the basal part a deep depression with a scale spot, the 

 lateral edges prominently produced. Frons with a punctiform 

 impression. Thorax longer than broad. A broad band at the 

 anterior margin, which narrows toward the sides, but continues 

 to the hind margin where it terminates laterad in a shallow 

 depression. Hind margin dorsad with a broad band composed 

 of two elongated closely approximated spots. Somewhat behind 

 the middle, laterad, a shallow depression with a nearly round 

 scale spot. From the latter to the posterior margin a slightly 

 raised keel. Elytra cordiform, broadest before the middle. 

 Each elytron with five longitudinal stripes, which are broader 

 than the interspaces, except the sutural stripes. The latter begin 

 before the middle, becoming somewhat narrower and again 

 broader toward the apex. The second stripe unites with the 

 marginal near the apex. The interspaces are somewhat elevated. 

 Abdominal segments finely wrinkled like leather and with a few 

 scattered scales. Each femur with a spot near the apex, antad. 



Length, 18 millimeters (without rostrum) ; width, 8. 



Luzon, Bulacan, Mount Guinuisan (A. Loher) . Type in my 

 collection. 



This species is to be placed in Heller's group H.^ 



Among the other species of this group P. loheri is easily recog- 

 nized by the cordate elytra. 



^ The mountainous regions of central and northern Luzon appear to be 

 the ancestral home of the Pachyrrhynchus-Apocyrtus groups, since by far 

 the most species of these groups, known from the Philippines, are found 

 in the indicated regions, and many more will be discovered in the vast yet 

 unexplored areas. For example, at Baguio (altitude, about 1,500 meters) 

 and close neighborhood the following species of Pachyrrhynchus are found: 

 Pachyrrhynchus anellifer Hell., annulatus Chevr., argus Pasc, coerulans 

 Kraatz, congestus Pasc, pulchellus Behr., sanchezi Hell., and zebra Schultze, 

 besides several other species not yet identified. 



'This Journal, Sec. D (1912), 7, 305. 



