﻿MELOLONTHID^ OF THE UNITED STATES. 279 



The males are more slender in form than the females, and are distinguished by 

 the club of the antennae being as long as the funiculus. 



I. 



1. D. elongata, elongata, subtus testacea, capite thoraceque nigricantibus testaceo limbatis, illo fortius 



confluenter, hoc dense punctato cinereo-pubescente subcanaliculato, hexagono,lateribus angulatis,. antice 

 posticeque paulo concavis, angulis posticis acutis valde prominulis, elytris geneo-testaceis virescentibus, 

 fortiter punctatis, breviter pubescentibus, vix trilineatis. Long. -33. 



Burm. Lamell. 2, 2nd, 74. 



Melolontha elongata Fabr. Syst. El. 2, 174, 



Melolontha elongatula Schonherr, Syn. Ins. 3, 210. 



Melolontha hexagona Germ. Ins. Sp. Nov. 124. 



? Dichelonycha virescens Kirby, Fauna Bor. Am. 4, 134. 



Pennsylvania, New York, Massachusetts, Michigan and Lake Superior. Very 

 abundant whenever found. Varies in color, the head and thorax being sometimes 

 almost rufous ; the elytra are uniformly bronzed, the suture and a narrow margin only 

 being pale. The lateral angles of the thorax are rounded, and the scutel is pubescent. 

 The legs are yellow ; the tarsi and posterior tibiae are more or less tinged with black- 

 ish. I have placed a query to the synonym of Kirby, as his var. C. (which he sup- 

 poses may be different from the type) evidently belongs to the next species, which 

 from want of attention to the form of the thorax (a character that has been omitted 

 by previous authors) may be readily confounded with the present. 



2. D. subvittata, elongata. testacea vel fusco-testacea, capite fortius confluenter punctato, piceo antice 



testaceo, thorace pubescente piceo, testaceo-limbato, sat dense punctato, hexagono, lateribus fere acute 

 angulatis, antice posticeque parum concavis, angulis posticis subacutis prominulis, elytris seneo-testaceis 

 vitta lata sublaterali virescente, densius rugose punctatis breviter pubescentibus, vix trilineatis, pedibus 

 totis flavis. Long. -4 — -46. 

 Dichelonycha virescens var. C.J Kirby, Fauna Bor. Am. 4, 135. 



Lake Superior, abundant. The scutel is densely pubescent. The green vitta of 

 the elytra is broad and curves around the tip; it is sometimes interrupted. The 

 form is a little stouter than that of D. elongata. 



3. D. t e s t a c e a, minus elongata, testacea, capite confluenter punctato, thorace pubescente, sat dense sub- 



tilius punctato, antice angustiore, lateribus rotundatis subangulatis, postice vix sinuatis, angulis posticis 

 subacutis, elytris breviter pubescentibus seneo-tinctis, fortiter punctatis, subtrilineatis. Long. -4. 

 Kirby, Fauna Bor. Am. 4, 135. 



Eagle Harbor, Lake Superior, only two females were found. Differs from the pre- 

 ceding by the broader form and almost regularly rounded sides, as well as by the finer 

 punctures of the thorax. From the following species it differs by the same characters 

 and also by the pubescence of the thorax being as fine as that of the elytra. 



4. D. linearis, elongata, testacea, capite thoraceque saepe piceis, illo modice marginato confluenter, hoc 



densissime punctato, pilis grossis ochreis dense vestito, lateribus angulatis postice oblique sinuatis, elytris 



